I was trying to configure mouse properties following this guide. I restarted my computer and got this message : > Failed to start the x server (your interface). It is likely not set up > correctly I have tried many methods including this thread on Linux Mint: * Failed to Start the X server *. The error in question is : > Parse error on line 19 of section InputClass in file > /etc/x11/xorf.conf.d/50-synaptics.conf "..." is not a valid keyword in > this section. Section "InputClass" Identifier "touchpad" Driver "synaptics" MatchIsTouchpad "on" Option "TapButton1" "1" Option "TapButton2" "2" Option "TapButton3" "3" Option "VertEdgeScroll" "on" Option "VertTwoFingerScroll" "on" Option "HorizEdgeScroll" "on" Option "HorizTwoFingerScroll" "on" Option "CircularScrolling" "on" Option "CircScrollTrigger" "2" Option "EmulateTwoFingerMinZ" "40" Option "EmulateTwoFingerMinW" "8" Option "CoastingSpeed" "0" Option "FingerLow" "35" Option "FingerHigh" "40" ... //line 19 I assume EndSection I am currently locked out of my desktop. It blue-screens and shows the above message. There is nothing in /etc/share/X11/xorg.conf.d/50-synaptics.conf What can I do to fix this ?

Under the new Wayland display server, several applications requiring root permission fail to run. I actually have an answer (one way of working around the issue). I welcome any better solutions or criticisms. Many other answers to this issue recommend adding root to xhost which, while it solves the issue, breaks the Wayland security model a bit. It is much better that we add root to xhost only for the duration of the running of the program, be it synaptic or gparted or whichever. **Gufw:** Edit your gufw.desktop file (/usr/share/applications/gufw.desktop in Debian 10) and change the line:

=gufw

to

=sh -c "xhost +si:localuser:root && gufw && xhost -si:localuser:root"

**Synaptic:** Inspired by the post at: https://discourse.ubuntu.com/t/adding-applications-to-start-up/9288 Edit /usr/bin/synaptic-pkexec to comment out the zenity warning message (assuming Debian 10) and change the line:

"/usr/sbin/synaptic" "$@"

to

xhost +si:localuser:root
pkexec "/usr/sbin/synaptic" "$@"
xhost -si:localuser:root

I imagine other programs can mostly be adapted in the same way as gufw. This does not solve the underlying issue of old programs running everything including GUI as root but at least they can function like before.

On a Debian system how can I extract and install a .deb package located in one folder and its dependencies located in a "pool" of other folders, using apt, dpkg and Synaptic respectively? Edit: I would like to be able to specify the source folder where the .deb package reside as well as the ones that contains the dependencies. All of them, say, in the home folder. I don't know if that can be done by editing the sources.list file or otherwise.

I have installed Gradle via Synaptic Package Manager. During the installation process, two auxiliary packages were installed, plus a large amount of different dependencies, and the process was quite lengthy. Since the Gradle build was old (4.4.1) and useless, I removed it, via Synaptic. But I'm not sure that Synaptic removed all the dependencies. How I can check this? I have Java 17 and JDK installed. EDIT: I tried a simulated dry run apt-get -s autoremove gradle, and this gives absolutely unacceptable results - the removal a plenty of legitimate packages .

Touchpad seems configured, cat /proc/bus/input/devices: I: Bus=0011 Vendor=0002 Product=000a Version=0063 N: Name="TPPS/2 Elan TrackPoint" P: Phys=isa0060/serio1/input0 S: Sysfs=/devices/platform/i8042/serio1/input/input5 U: Uniq= H: Handlers=mouse0 event4 B: PROP=21 B: EV=7 B: KEY=70000 0 0 0 0 B: REL=3 cat /usr/share/X11/xorg.conf.d/40-libinput.conf: Section "InputClass" Identifier "libinput touchpad catchall" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection xinput list: ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ TPPS/2 Elan TrackPoint id=12 [slave pointer (2)] but the **touchpad isn't functioning**. (Both trackpoint and USB mouse work.) System details, lshw includes: vendor: LENOVO version: ThinkPad X1 Carbon Gen 12 *-core *-cpu description: CPU product: Intel(R) Core(TM) Ultra 7 165U version: 6.170.4 *-input:0 product: AT Translated Set 2 keyboard physical id: 1 logical name: input0 logical name: /dev/input/event0 logical name: input0::capslock logical name: input0::numlock logical name: input0::scrolllock capabilities: i8042 *-input:5 product: sof-hda-dsp HDMI/DP,pcm=5 physical id: 6 logical name: input14 logical name: /dev/input/event13 *-input:7 product: TPPS/2 Elan TrackPoint physical id: 9 logical name: input3 logical name: /dev/input/event4 logical name: /dev/input/mouse0 capabilities: i8042 And lspci 00:00.0 Host bridge: Intel Corporation Device 7d02 (rev 04) 00:02.0 VGA compatible controller: Intel Corporation Meteor Lake-P [Intel Graphics] (rev 08) 00:04.0 Signal processing controller: Intel Corporation Device 7d03 (rev 04) 00:06.0 PCI bridge: Intel Corporation Device 7e4d (rev 20) 00:06.1 PCI bridge: Intel Corporation Device 7eca (rev 10) 00:07.0 PCI bridge: Intel Corporation Meteor Lake-P Thunderbolt 4 PCI Express Root Port #0 (rev 02) 00:07.2 PCI bridge: Intel Corporation Meteor Lake-P Thunderbolt 4 PCI Express Root Port #2 (rev 02) 00:08.0 System peripheral: Intel Corporation Device 7e4c (rev 20) 00:0a.0 Signal processing controller: Intel Corporation Device 7d0d (rev 01) 00:0b.0 Processing accelerators: Intel Corporation Device 7d1d (rev 04) 00:0d.0 USB controller: Intel Corporation Meteor Lake-P Thunderbolt 4 USB Controller (rev 02) 00:0d.2 USB controller: Intel Corporation Meteor Lake-P Thunderbolt 4 NHI #0 (rev 02) 00:0d.3 USB controller: Intel Corporation Meteor Lake-P Thunderbolt 4 NHI #1 (rev 02) 00:14.0 USB controller: Intel Corporation Meteor Lake-P USB 3.2 Gen 2x1 xHCI Host Controller (rev 20) 00:14.2 RAM memory: Intel Corporation Device 7e7f (rev 20) 00:14.3 Network controller: Intel Corporation Device 7e40 (rev 20) 00:15.0 Serial bus controller: Intel Corporation Meteor Lake-P Serial IO I2C Controller #0 (rev 20) 00:16.0 Communication controller: Intel Corporation Device 7e70 (rev 20) 00:16.3 Serial controller: Intel Corporation Device 7e73 (rev 20) 00:1c.0 PCI bridge: Intel Corporation Device 7e38 (rev 20) 00:1f.0 ISA bridge: Intel Corporation Device 7e03 (rev 20) 00:1f.3 Audio device: Intel Corporation Meteor Lake-P HD Audio Controller (rev 20) 00:1f.4 SMBus: Intel Corporation Meteor Lake-P SMBus Controller (rev 20) 00:1f.5 Serial bus controller: Intel Corporation Meteor Lake-P SPI Controller (rev 20) 04:00.0 Non-Volatile memory controller: Shenzhen Unionmemory Information System Ltd. Device 6a04 (rev 03)

I find that my touchpad's palm detection is pretty awful. I have set it to the minimum sensitivity not ruining my touchpad use (PalmMinWidth=5, PalmMinZ=1), and I still get random bumps whenever I type on my keyboard. I'd rather use palm detection than disable keyboard while typing because I find that the keyboard is disabled for too long a period (i.e., I'm done typing and I have to wait 2 seconds before using the keyboard again, which is annoying). A possible strategy would be to reduce this delay, although I'm not sure if the touchpad would stay usable (if you know how to do this, post it, better than nothing :). Whenever I use windows, I find I'm not having so much trouble with the touchpad, so there must be a way to improve palm detection? Lastly, I'm running Debian testing 64 bits on linux kernel 3.2.0-rc7.

After installing the package xfce4-screensaver, apt and Synaptic keep telling me it's broken and sometimes even trying to automatically uninstall it. Because it has missing dependencies that it can't resolve because I'm on stable and, for whatever reason, it and some of its dependencies aren't in the stable repository. I just went and manually got the .deb for xfce4-screensaver from the testing repository and installed that, and even without those dependencies it's still working exactly as intended (or if there are actually parts of the program not functioning correctly because of this, then it's all stuff I was never going to use anyway) but it would be nice to get it to stop complaining every time I do almost anything with apt or dpkg

***@***:~/Downloads $ sudo dpkg -i xfce4-screensaver_4.18.3-1_arm64.deb 
(Reading database ... 602645 files and directories currently installed.)
Preparing to unpack xfce4-screensaver_4.18.3-1_arm64.deb ...
Unpacking xfce4-screensaver (4.18.3-1) over (4.18.3-1) ...
dpkg: dependency problems prevent configuration of xfce4-screensaver:
 xfce4-screensaver depends on libglib2.0-0t64 (>= 2.38.0); however:
  Package libglib2.0-0t64 is not installed.
 xfce4-screensaver depends on libgtk-3-0t64 (>= 3.21.4); however:
  Package libgtk-3-0t64 is not installed.
 xfce4-screensaver depends on libxfce4ui-2-0 (>= 4.18.4); however:
  Version of libxfce4ui-2-0:arm64 on system is 4.18.2-2.

dpkg: error processing package xfce4-screensaver (--install):
 dependency problems - leaving unconfigured
Processing triggers for mailcap (3.70+nmu1) ...
Processing triggers for desktop-file-utils (0.26-1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for man-db (2.11.2-2) ...
Errors were encountered while processing:
 xfce4-screensaver
***@***:~ $ sudo apt update
Hit:1 http://deb.debian.org/debian  bookworm InRelease
Hit:2 http://deb.debian.org/debian-security  bookworm-security InRelease                            
Hit:3 http://deb.debian.org/debian  bookworm-updates InRelease                                      
Hit:4 http://archive.raspberrypi.com/debian  bookworm InRelease                   
Hit:5 https://download.sublimetext.com  apt/stable/ InRelease                     
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
***@***:~ $ sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 xfce4-screensaver : Depends: libglib2.0-0t64 (>= 2.38.0) but it is not installable
                     Depends: libgtk-3-0t64 (>= 3.21.4) but it is not installable
                     Depends: libxfce4ui-2-0 (>= 4.18.4) but 4.18.2-2 is installed
                     Recommends: gir1.2-libxfce4util-1.0 but it is not installed
                     Recommends: gir1.2-xfconf-0 but it is not installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
***@***:~ $ sudo apt --fix-broken install
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Correcting dependencies... failed.
The following packages have unmet dependencies:
 xfce4-screensaver : Depends: libglib2.0-0t64 (>= 2.38.0) but it is not installable
                     Depends: libgtk-3-0t64 (>= 3.21.4) but it is not installable
                     Depends: libxfce4ui-2-0 (>= 4.18.4) but 4.18.2-2 is installed
                     Recommends: gir1.2-libxfce4util-1.0 but it is not installed
                     Recommends: gir1.2-xfconf-0 but it is not installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies

I've been researching this problem for a while but none of the proposed solutions seemed to have helped. I tried disabling the trackpoint in Bios and added "psmouse.synaptics_intertouch=1" to my grub file but neither worked. For some context I'm running Fedora 38 and all my firmware is up to date. I have the 20KH model which usually doesn't have this problem for other owners. My output from dmesg is as follows: . Apologies ahead of time if this is something very obvious, I'm new to Linux. I'd really appreciate any help as I've been stuck with this for more than a week.

I don't know if im using libinput or synaptics cause i use both at the same time. **Xorg synaptic config**

cat /etc/X11/xorg.conf.d/70-synaptics.conf 
# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
	MatchDevicePath "/dev/input/event*"
        MatchIsTouchpad "on"
        # OWN SHIT
        Option "PalmDetect" "1"
        Option "PalmMinWidth" "3"
        Option "PalmMinZ" "50"
        Option "VertScrollDelta" "30"
        Option "HorizScrollDelta" "500"

# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html 
#       MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
        Identifier "touchpad ignore duplicates"
        MatchIsTouchpad "on"
        MatchOS "Linux"
        MatchDevicePath "/dev/input/mouse*"
        Option "Ignore" "on"
        # OWN SHIT
        Option "PalmDetect" "1"
        Option "PalmMinWidth" "4"
        Option "PalmMinZ" "50"
        Option "VertScrollDelta" "30"
        Option "HorizScrollDelta" "500"
EndSection

# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
        Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Disable clickpad buttons on Apple touchpads"
        MatchProduct "Apple|bcm5974"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

**Altough i set the scroll speed with this script**:

#!bin/bash
# MOUSE SCRIPT
# xinput, permanent, run at startup
# touchpad scroll speed config

# >> TOUCHPAD
# Scroll speed
xinput set-prop "Synaptics TM3276-022" "Synaptics Scrolling Distance" 300, 100

# >> TRACKPOINT
# Scroll speed
xinput set-prop "TPPS/2 IBM TrackPoint" "libinput Scrolling Pixel Distance" 50

**And i set the trackpoint speed with this script**

#!bin/bash
# Trackpoint speed controll config
xinput --set-prop "TPPS/2 IBM TrackPoint" "libinput Accel Profile Enab
led" 1, 0

xinput --set-prop "TPPS/2 IBM TrackPoint" "libinput Accel Speed" 0.40

**Any idea which config to use or which is the config the system uses?**

Am currently running POP_OS 20.04 (LTS). When I open the terminal and run the command, dpkg --list | grep linux-image it returns a list of apparently installed images, including my current (6.0.12) and most recent (5.17.5), about nine images from version set 5.0 and six from version set 5.3 ...plus one from 4.18 and one from 5.4. Previously I have used synaptic to remove older kernels from the system, but for some reason when I search for linux-image (and sort installed images to the top) only my current and most recent are showing as installed ~ the box is green. These older 5.0/5.3 images don't show in the search results. Stacer uninstaller also cannot find them. Can anyone tell me why these images show in the console but not synaptic? What are they doing on the system and are they even really on the system? If they are indeed taking up space on my home partition **how can I safely remove them**? One consideration comes to mind is this system started out at POP_OS version 18.10 and has been upgraded with each release up to 20.04 (LTS) -- *although not sure if that has anything to do with it*. Another thought is maybe this has something to do with the recovery partition, but I have no idea how or why it would need so many versions of the kernel, or why they would accumulate in such untidy manner.

After booting Guix for the first time, I noticed that tapping on touchpad doesn't render any action. Apparently, Guix comes with a default configuration for touchpad allowing me to click on touchpad, which is mostly sufficient, but having tap disabled, which may be tiring with extensive touchpad use. This is similar to the default configuration one could encounter on Debian . For just in case, I used xinput list to find out the name of the touchpad, and xinput list-props followed by the touchpad name, to check its capabilities. Then I found the location of synclient binary with find, and, consulting the synaptics(4) man page online, invoked synclient with TapButton1=1 to enable one-finger tap, then with TapButton2=3 to set two-finger tap to right button event (which brings the right-click menu). While on it, I also enabled horizontal two-finger scrolling with HorizTwoFingerScroll=1, as well as natural scrolling by setting the VertScrollDelta and HorizScrollDelta to the same values which I learned from xinput list-props but negative (by adding - before each value). Now, one would typically add this settings to /etc/X11/xorg.conf.d/70-synaptics.conf. But since this is Guix, the file is not in /etc but in the GNU store and the touchpad driver is supposed to be configured in /etc/config.scm. The GNU Guix Reference Manual for version 1.3.0 doesn't mention how to configure synaptics. What can I do on a Guix system, so that I do not need configuring the touchpad myself after each login?

I have a Lenovo x1 carbon 7th gen. I just recently installed the xserver-xorg-input-synaptics to fix the disabled click buttons after suspension. Since I have installed the synaptics driver, the tap functionality of the touchpad itself is extremely high. Everytime I type on the keyboard, I activate a click on the touchpad, and when I click on the "activity" Icon in gnome it often registers two clicks. From what I found out so far, I should change the options in synclient to alter this behaviour. But I cannot figure out which options need to be altered to fix this behaviour. I am using the latest Pop OS version, which basically is Ubuntu 18.10

I have tried many different solutions found around this and other websites, such as sudo apt update && sudo apt upgrade sudo apt list --upgradeable sudo apt full-upgrade sudo apt dist-upgrade and no information nor update of the package is displayed. I also tried aptitude update and checked the log and no information about the package is displayed. Any ideas on how to identify this package? My guess at this point, is that it might have something to do with the sources.list file. Any comments on this? I have Linux Mint with the latest distribution Ulyana / Focal. Thank you very much!

I've seen lots of problems similar to this, but none which had the touchpad detected and drivers installed, and still not working. I'm trying to install Arch for the first time on a new laptop, and I can't seem to get the touchpad working. The laptop is the Lenovo Ideapad 7, and here's some info, if I'm missing something, let me know and I'll add it. uname -a:

Linux  5.14.8-arch1-1 #1 SMP PREEMPT Sun, 26 Sep 2021 19:36:15 +0000 x86_64 GNU/Linux

xinput:

⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Elan Touchpad                             id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ Integrated Camera: Integrated C           id=10   [slave  keyboard (3)]
    ↳ Integrated Camera: Integrated I           id=11   [slave  keyboard (3)]
    ↳ Ideapad extra buttons                     id=13   [slave  keyboard (3)]
    ↳ Intel HID events                          id=14   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=15   [slave  keyboard (3)]

As you can see, I have Elan Touchpad shows up properly. cat /proc/bus/input/devices | grep touchpad

I: Bus=0018 Vendor=04f3 Product=0007 Version=0000
N: Name="Elan Touchpad"
P: Phys=
S: Sysfs=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-ELAN0000:00/input/input10
U: Uniq=
H: Handlers=event10 mouse0
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=663800013000003

cat /sys/class/input/event*/device/name

Lid Switch
Elan Touchpad
Power Button
Sleep Button
Power Button
AT Translated Set 2 keyboard
Intel HID events
Ideapad extra buttons
Video Bus
Integrated Camera: Integrated C
Integrated Camera: Integrated I

Once again, Elan Touchpad shows up, so I know it's detected by the system Now, things I've installed:

libinput
synaptics
xinput
libinput-gestures
xf86-input-libinput

I might have installed a few other things, but those are the main ones I remember Next, config I've tried/messed with: I tried making 40-libinput.conf and 70-synaptics.conf in /etc/X11/xorg.conf.d (out of the example files in /usr/share/X11/xorg.conf.d). I tried editing GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub to have i8042.reset in it, then updating grub. I tried checking in BIOS to see if there's an option to enable/disable it. I tried checking settings to make sure it's enabled. I know it's sending input, since when I boot from the ISO on the USB, if I move my finger on the touchpad, it prints a bunch of errors or something about input. Once again, I also might have changed some other things that I've forgotten, sorry about that, but none of them changed anything, so they hopefully shouldn't make a difference. I don't really know what else to try. One thing that could work is the solution to [this](https://bbs.archlinux.org/viewtopic.php?id=233792) forum post, but it says something about building the kernel, and that just seems way above my skill level. Any help is greatly appreciated, thanks in advance!

So I'm currently trying to install the

'synaptic'

package manager in Kali Linux through

-get install

. But I'm getting an error that says

: Package 'synaptic' has no installation candidate.

I've tried the following:- -

-get update

-

-get upgrade

- changed the mirror urls in

/etc/apt/sources.list

But it's still not working, it would be great if someone can help me install this package:) Thank you

I like to select text with the touchpad by clicking the Left-Bottom button and dragging with the other finger across the touchpad. The problem is that my client scrolls before selecting text. I want to only be able to select text. How do I disable scrolling on the bottom of the touchpad.

It all started after installing xemacs21 on my Ubuntu machine. Here are some of the outputs probably needed for troubleshooting. Let me know if I should add more. After trying sudo apt-get -f install Gives Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error processing package xemacs21-mule (--configure): subprocess installed post-installation script returned error exit status 127 No apport report written because the error message indicates its a followup error from a previous failure. dpkg: dependency problems prevent configuration of xemacs21: xemacs21 depends on xemacs21-mule (>= 21.4.22-14ubuntu1) | xemacs21-mule-canna-wnn (>= 21.4.22-14ubuntu1) | xemacs21-nomule (>= 21.4.22-14ubuntu1); however: Package xemacs21-mule is not configured yet. Package xemacs21-mule-canna-wnn is not installed. Package xemacs21-nomule is not installed. dpkg: error processing package xemacs21 (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: xemacs21-mule xemacs21 E: Sub-process /usr/bin/dpkg returned an error code (1) After Trying sudo apt autoremove -f Gives Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error processing package xemacs21-mule (--configure): subprocess installed post-installation script returned error exit status 127 Errors were encountered while processing: xemacs21-mule E: Sub-process /usr/bin/dpkg returned an error code (1) After Trying sudo apt-get --purge remove xemacs21 Gives Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: xemacs21* 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 26.6 kB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 260044 files and directories currently installed.) Removing xemacs21 (21.4.22-14ubuntu1) ... Setting up xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error processing package xemacs21-mule (--configure): subprocess installed post-installation script returned error exit status 127 Errors were encountered while processing: xemacs21-mule E: Sub-process /usr/bin/dpkg returned an error code (1) After Trying sudo apt-get install dpkg Gives Reading package lists... Done Building dependency tree Reading state information... Done dpkg is already the newest version (1.18.4ubuntu1.2). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Setting up xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error processing package xemacs21-mule (--configure): subprocess installed post-installation script returned error exit status 127 dpkg: dependency problems prevent configuration of xemacs21: xemacs21 depends on xemacs21-mule (>= 21.4.22-14ubuntu1) | xemacs21-mule-canna-wnn (>= 21.4.22-14ubuntu1) | xemacs21-nomule (>= 21.4.22-14ubuntu1); however: Package xemacs21-mule is not configured yet. Package xemacs21-mule-canna-wnn is not installed. Package xemacs21-nomule is not installed. dpkg: error processing package xemacs21 (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. Errors were encountered while processing: xemacs21-mule xemacs21 E: Sub-process /usr/bin/dpkg returned an error code (1) After Trying sudo dpkg --configure -a Gives Setting up xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error processing package xemacs21-mule (--configure): subprocess installed post-installation script returned error exit status 127 dpkg: dependency problems prevent configuration of xemacs21: xemacs21 depends on xemacs21-mule (>= 21.4.22-14ubuntu1) | xemacs21-mule-canna-wnn (>= 21.4.22-14ubuntu1) | xemacs21-nomule (>= 21.4.22-14ubuntu1); however: Package xemacs21-mule is not configured yet. Package xemacs21-mule-canna-wnn is not installed. Package xemacs21-nomule is not installed. dpkg: error processing package xemacs21 (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: xemacs21-mule xemacs21 After Trying ~$ sudo apt upgrade Gives Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Setting up xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error processing package xemacs21-mule (--configure): subprocess installed post-installation script returned error exit status 127 dpkg: dependency problems prevent configuration of xemacs21: xemacs21 depends on xemacs21-mule (>= 21.4.22-14ubuntu1) | xemacs21-mule-canna-wnn (>= 21.4.22-14ubuntu1) | xemacs21-nomule (>= 21.4.22-14ubuntu1); however: Package xemacs21-mule is not configured yet. Package xemacs21-mule-canna-wnn is not installed. Package xemacs21-nomule is not installed. dpkg: error processing package xemacs21 (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. Errors were encountered while processing: xemacs21-mule xemacs21 E: Sub-process /usr/bin/dpkg returned an error code (1) After Trying sudo apt-get purge --remove xemacs21* [sudo] password for nipun: Reading package lists... Done Building dependency tree Reading state information... Done Note, selecting 'xemacs21-mule-canna-wnn' for glob 'xemacs21*' Note, selecting 'xemacs21-mule' for glob 'xemacs21*' Note, selecting 'xemacs21' for glob 'xemacs21*' Note, selecting 'xemacs21-supportel' for glob 'xemacs21*' Note, selecting 'xemacs21-basesupport-el' for glob 'xemacs21*' Note, selecting 'xemacs21-bin' for glob 'xemacs21*' Note, selecting 'xemacs21-mulesupport' for glob 'xemacs21*' Note, selecting 'xemacs21-support' for glob 'xemacs21*' Note, selecting 'xemacs21-mulesupport-el' for glob 'xemacs21*' Note, selecting 'xemacs21-gnome-nomule' for glob 'xemacs21*' Note, selecting 'xemacs21-gnome-mule' for glob 'xemacs21*' Note, selecting 'xemacs21-nomule' for glob 'xemacs21*' Note, selecting 'xemacs21-basesupport' for glob 'xemacs21*' Note, selecting 'xemacs21-gnome-mule-canna-wnn' for glob 'xemacs21*' Package 'xemacs21-gnome-mule' is not installed, so not removed Package 'xemacs21-gnome-mule-canna-wnn' is not installed, so not removed Package 'xemacs21-gnome-nomule' is not installed, so not removed Package 'xemacs21' is not installed, so not removed Package 'xemacs21-basesupport-el' is not installed, so not removed Package 'xemacs21-mule-canna-wnn' is not installed, so not removed Package 'xemacs21-mulesupport-el' is not installed, so not removed Package 'xemacs21-nomule' is not installed, so not removed Package 'xemacs21-supportel' is not installed, so not removed The following package was automatically installed and is no longer required: libcompfaceg1 Use 'sudo apt autoremove' to remove it. The following packages will be REMOVED: xemacs21-basesupport* xemacs21-bin* xemacs21-mule* xemacs21-mulesupport* xemacs21-support* 0 upgraded, 0 newly installed, 5 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 98.3 MB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 260040 files and directories currently installed.) Removing xemacs21-mule (21.4.22-14ubuntu1) ... /var/lib/dpkg/info/xemacs21-mule.prerm: 19: /var/lib/dpkg/info/xemacs21-mule.prerm: /usr/lib/emacsen-common/emacs-remove: not found dpkg: error processing package xemacs21-mule (--purge): subprocess installed pre-removal script returned error exit status 127 update-alternatives: using /usr/bin/xemacs21-mule to provide /usr/bin/xemacs21 (xemacs21) in auto mode /var/lib/dpkg/info/xemacs21-mule.postinst: 38: /var/lib/dpkg/info/xemacs21-mule.postinst: /usr/lib/emacsen-common/emacs-install: not found dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 127 dpkg: xemacs21-mulesupport: dependency problems, but removing anyway as you requested: xemacs21-mule depends on xemacs21-mulesupport (>= 2003.04.23-1). Removing xemacs21-mulesupport (2009.02.17.dfsg.2-2) ... Purging configuration files for xemacs21-mulesupport (2009.02.17.dfsg.2-2) ... dpkg: xemacs21-support: dependency problems, but removing anyway as you requested: xemacs21-bin depends on xemacs21-support (= 21.4.22-14ubuntu1). xemacs21-mule depends on xemacs21-support (= 21.4.22-14ubuntu1). Removing xemacs21-support (21.4.22-14ubuntu1) ... Purging configuration files for xemacs21-support (21.4.22-14ubuntu1) ... dpkg: xemacs21-basesupport: dependency problems, but removing anyway as you requested: xemacs21-mule depends on xemacs21-basesupport (>= 2003.04.23-1); however: Package xemacs21-basesupport is to be removed. Removing xemacs21-basesupport (2009.02.17.dfsg.2-2) ... dpkg: xemacs21-bin: dependency problems, but removing anyway as you requested: xemacs21-mule depends on xemacs21-bin (= 21.4.22-14ubuntu1); however: Package xemacs21-bin is to be removed. Removing xemacs21-bin (21.4.22-14ubuntu1) ... Processing triggers for install-info (6.1.0.dfsg.1-5) ... Processing triggers for man-db (2.7.5-1) ... Errors were encountered while processing: xemacs21-mule E: Sub-process /usr/bin/dpkg returned an error code (1) ~$

I run Debian 10/Gnome on a Lenovo Y2P, so far without problem. In particular uname -a yields:

Linux deepthought 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64 GNU/Linux

Since I once ran sudo halt on 4.19.0-11-amd64, synclient -l yields: > Couldn't find synaptics properties. No synaptics driver loaded? I.e. the touchpad works, but less sensitive, no 2-FingerScroll, no click-drag, and the Mouse & Touchpad settings menu is reduced to a basic form. On the previous version, 4.19.0-10-amd64 the touchpad still works completely normal. Here is, what I tried so far: 1. I have xserver-xorg-input-libinput and xserver-xorg-input-synaptics installed (and re-installed, to no avail). 2. As in this StackExchange answer, xinput list yields: > ↳ PS/2 Synaptics TouchPad id=13 [slave pointer (2)] but copying the synaptics config file, as suggested:

cp /usr/share/X11/xorg.conf.d/70-synaptics.conf /etc/X11/xorg.conf.d/70-synaptics.conf

and rebooting did not solve the problem. The content of 70-synaptics.conf is:

# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html 
#       MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
        Identifier "touchpad ignore duplicates"
        MatchIsTouchpad "on"
        MatchOS "Linux"
        MatchDevicePath "/dev/input/mouse*"
        Option "Ignore" "on"
EndSection

# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
        Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Disable clickpad buttons on Apple touchpads"
        MatchProduct "Apple|bcm5974"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

3. Re-adding the module to the kernel did not help but tells me this: insmod /lib/modules/4.19.0-13-amd64/kernel/drivers/input/mouse/psmouse.ko proto=imps 4. Following this reddit, i checked dmesg like so:

$ sudo dmesg | grep -i PS/2
[    1.799257] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
[    1.812958] mousedev: PS/2 mouse device common for all mice
[    2.218457] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input5
[  246.027504] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input81

However, my xorg log contains nothing about Synaptics:

[   189.259] 
X.Org X Server 1.20.4
X Protocol Version 11, Revision 0
[   189.259] Build Operating System: Linux 4.9.0-8-amd64 x86_64 Debian
[   189.259] Current Operating System: Linux deepthought 4.19.0-10-amd64 #1 SMP Debian 4.19.132-1 (2020-07-24) x86_64
[   189.259] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.19.0-10-amd64 root=UUID=48c75b27-4eb3-426f-9a8b-80bac1fc66d5 ro quiet
[   189.259] Build Date: 05 March 2019  08:11:12PM
[   189.259] xorg-server 2:1.20.4-1 (https://www.debian.org/support)  
[   189.259] Current version of pixman: 0.36.0
[   189.259]    Before reporting problems, check http://wiki.x.org 
        to make sure that you have the latest version.
[   189.259] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   189.260] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Aug  6 14:41:07 2020
[   189.260] (==) Using config directory: "/etc/X11/xorg.conf.d"
[   189.260] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   189.261] Parse error on line 3 of section Device in file /etc/X11/xorg.conf.d/20-displaylink.conf
        "MatchDriver" is not a valid keyword in this section.
[   189.262] (EE) Problem parsing the config file
[   189.262] (EE) Error parsing the config file
[   189.262] (EE) 
Fatal server error:
[   189.262] (EE) no screens found(EE) 
[   189.262] (EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org 
 for help. 
[   189.262] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   189.262] (EE) 
[   189.262] (EE) Server terminated with error (1). Closing log file.

The error in here stems from another halted project - it has not influenced the synaptics driver in the past. But I don't see anything about the latter. (side question: i removed the file 20-displaylink.conf a while ago, i.e. this file doesn't exist anymore. when/how does this log get updated?) 5. As I expected, adding the module automatically at start up, as suggested here did not change anything. 6. This link tells me, that Gnome 3.20 no longer supports synaptic drivers, but switched to libinput. I have 3.30.2., so while the behavior would make sense, I have the same Gnome version on the Kernel version 4.19.0-10-amd64, and it works just fine. Anyhow, this wiki entry should then tell me how to switch to libinput - but i seem to be too stupehd for that, i.e. I don't get what I need to do. Now, slowly desperation kicks in, as I am not (yet) familiar enough with Linux, to cook up my own solution. Hence, any help is greatly appreciated. Also: how could halt mess this up? Is there some danger to it, I should know about? Thank you big time!

On our cloud environment, I got Debian and now I would like to install a desktop. Which desktop supports an update icon to notify about updates.

This is exact content from my sources.list: # # deb cdrom:[Debian GNU/Linux 2016.1 _Kali-rolling_ - Official Snapshot amd64 LIVE/INSTALL Binary 20160830-11:29]/ kali-rolling contrib main non-free #deb cdrom:[Debian GNU/Linux 2016.1 _Kali-rolling_ - Official Snapshot amd64 LIVE/INSTALL Binary 20160830-11:29]/ kali-rolling contrib main non-free I couldn't install the Synaptic package manager and was told to modify sources.list. I googled a lot and added some repos into it and ran update and upgrade command only to see Kali crash... I had to recover it. Please mention the exact content that should be there to ensure that Kali Linux works.