I want to get virtual machine in a TTY (VT*) in fullscreen like GDM3 can take a TTY (VT*) for the graphic part of linux I want DISPLAY (heard as the output of a graphic server, here the VMs) to be redirected in a TTY (VT*), and not in a window like usually It will make like the computer run multiple OS at the same time but in fact it's a Linux Kernel who virtualize the differents OS that we can see on the different TTY (VT*) You know, the TTY (VT*) in CTRL + ALT + Fi ---------- Okay ---------- Not okay

This is related to my other question: https://unix.stackexchange.com/questions/115443/kate-has-no-window-borders-and-thus-no-minimize-maximize-and-close-buttons In KDE, after right-clickin on any window border, or it's entry in the task manager, I can select More Actions and then Fullscreen. Once in this mode, normal window manager commands such as alt-tab and alt-f4 no longer work. Moreover, the task bar and everything else remain permanently hidden until I quit the window via the File menu. ## How do I un-fullscreen a window managed by kwin?

I installed Kali Linux 2020.2 in virtual box 6.1.12. **I was trying to open Kali Linux in full screen on virtual box** so I **gave following commands in chronological order with root** access -- apt-get Install linux-headers-686-pae apt-get install Linux-headers-$(uname -r) reboot apt-get install virtualbox-guest-x11 reboot **uname -r = 5.5.0-kali2-686-pae** I had update my sources directory. And when I login after this, my screen goes black. How can I fix this issue or I will have to install the OS again ?

I'm trying to find a way to exit kiosk mode or to exit a full screen chromium. So I'm running a Raspberry Pi 4 with raspbian and have Netflix, Disney+ etc. working as a link on my desktop. I add the desktop command to be in kiosk mode but there is no way to exit if you only have a touch screen. A keyboard gives the Alt+F4 to exit but if it is a touch screen there appears no easy way to come out of the full screen browser. So for now I've excluded the kiosk mode and hidden all but the top bar that includes the close button (cross in top right). That's OK, but it would be nice to somehow do this full screen. Then either by long press and an option to either close tab, exit or show desktop that gets you out of the netflix ... running. My whole setup looks neat, with 5 streaming services on the desktop, they all run full screen lovely, but no way to exit them. I did look at a mouse gesturing add on for chrome (crxmouse), but that really did not work for chrome, let alone chromium. I've come here for some inspiration or maybe another way round it, like a long press to exit or something.

Under Debian 12 I use a script at startup via systemd, the latter launches a script. And it performs the following functionality: waiting for a removable device to be mounted, if detected, launching an antivirus scan, announcing the result. The user is informed of the steps via a full-screen image. Problem: when starting I have the dash at the bottom and the desktop window reduced with two windows: terminal and the image I wanted in full screen. * Service: /usr/lib/systemd/user/usb_scan.service

[Unit]
    Description= French verbose
    [Service]
    Type=simple
    ExecStart=/home/X/script.sh
    Environment=DISPLAY=:0
    [Install]
    WantedBy=graphical.target

* script with only the function that calls the command:

-bash
    #!/bin/bash
    show_fullscreen_info() {
             eog --fullscreen "$1"
    }
    
    show_fullscreen_info "/home/X/image.png"

I imagine you see that I am a beginner, I thank you for your help. Sincerely **EDIT** I try with a XFCE environment and it works well there.

#### I'm new around Xmonad WM and haskell is completely new to me, so be patient. Running the almost stock ArcoLinux Xmonad. I'm trying to setup Xmonad WM to be able to go full screen at anytime and in all apps I want, and bind that to (modMask, xK_f) - Basically use that binding as a toggle to go full screen in some of the apps that I need, especially the browser. while hiding the polybar completely. This is my ~/.xmonad/xmonad.sh

import System.IO
import System.Exit

import XMonad
import XMonad.Hooks.SetWMName
import XMonad.Hooks.DynamicLog
import XMonad.Hooks.ManageDocks
import XMonad.Hooks.EwmhDesktops
import XMonad.Hooks.ManageHelpers(doFullFloat, doCenterFloat, isFullscreen, isDialog)
import XMonad.Config.Desktop
import XMonad.Config.Azerty
import XMonad.Util.Run(spawnPipe)
import XMonad.Actions.SpawnOn
import XMonad.Util.EZConfig (additionalKeys, additionalMouseBindings)
import XMonad.Actions.CycleWS
import XMonad.Hooks.UrgencyHook
import qualified Codec.Binary.UTF8.String as UTF8

import XMonad.Layout.Spacing
import XMonad.Layout.Gaps
import XMonad.Layout.ResizableTile
---import XMonad.Layout.NoBorders
import XMonad.Layout.Fullscreen (fullscreenFull)
import XMonad.Layout.Cross(simpleCross)
import XMonad.Layout.Spiral(spiral)
import XMonad.Layout.ThreeColumns
import XMonad.Layout.MultiToggle
import XMonad.Layout.MultiToggle.Instances
import XMonad.Layout.IndependentScreens


import XMonad.Layout.CenteredMaster(centerMaster)

import Graphics.X11.ExtraTypes.XF86
import qualified XMonad.StackSet as W
import qualified Data.Map as M
import qualified Data.ByteString as B
import Control.Monad (liftM2)
import qualified DBus as D
import qualified DBus.Client as D


myStartupHook = do
    spawn "$HOME/.xmonad/scripts/autostart.sh"
    setWMName "LG3D"

-- colours
normBord = "#4c566a"
focdBord = "#5e81ac"
fore     = "#DEE3E0"
back     = "#282c34"
winType  = "#c678dd"

--mod4Mask= super key
--mod1Mask= alt key
--controlMask= ctrl key
--shiftMask= shift key

myModMask = mod4Mask
encodeCChar = map fromIntegral . B.unpack
myFocusFollowsMouse = True
myBorderWidth = 2
myWorkspaces    = ["\61612","\61899","\61947","\61635","\61502","\61501","\61705","\61564","\62150","\61872"]
--myWorkspaces    = ["1","2","3","4","5","6","7","8","9","10"]
--myWorkspaces    = ["I","II","III","IV","V","VI","VII","VIII","IX","X"]

myBaseConfig = desktopConfig

-- window manipulations
myManageHook = composeAll . concat $
    [ [isDialog --> doCenterFloat]
    , [className =? c --> doCenterFloat | c  doFloat | t  doFloat | r  doIgnore | i  title =? x  resource =? x) --> doShiftAndGo "\61612" | x  title =? x  resource =? x) --> doShiftAndGo "\61899" | x  title =? x  resource =? x) --> doShiftAndGo "\61947" | x  title =? x  resource =? x) --> doShiftAndGo "\61635" | x  title =? x  resource =? x) --> doShiftAndGo "\61502" | x  title =? x  resource =? x) --> doShiftAndGo "\61501" | x  title =? x  resource =? x) --> doShiftAndGo "\61705" | x  title =? x  resource =? x) --> doShiftAndGo "\61564" | x  title =? x  resource =? x) --> doShiftAndGo "\62150" | x  title =? x  resource =? x) --> doShiftAndGo "\61872" | x  focus w >> mouseMoveWindow w >> windows W.shiftMaster))

    -- mod-button2, Raise the window to the top of the stack
    , ((modMask, 2), (\w -> focus w >> windows W.shiftMaster))

    -- mod-button3, Set the window to floating mode and resize by dragging
    , ((modMask, 3), (\w -> focus w >> mouseResizeWindow w >> windows W.shiftMaster))

    ]


-- keys config

myKeys conf@(XConfig {XMonad.modMask = modMask}) = M.fromList $
  ----------------------------------------------------------------------
  -- SUPER + FUNCTION KEYS

  [ ((modMask, xK_d ), spawn $ "dmenu_run -i -nb '#191919' -nf '#fea63c' -sb '#fea63c' -sf '#191919' -fn 'NotoMonoRegular:bold:pixelsize=15'")
  , ((modMask, xK_f), sendMessage $ Toggle NBFULL)
  , ((modMask, xK_Return), spawn $ "alacritty" )
  , ((modMask, xK_q), kill )
  , ((modMask, xK_t), spawn $ "termite" )
  , ((modMask, xK_r), spawn $ "rofi -show drun" )
  , ((modMask, xK_v), spawn $ "pavucontrol" )
  , ((modMask, xK_x), spawn $ "arcolinux-logout" )
  , ((modMask, xK_l), spawn $ "betterlockscreen -l" )
  , ((modMask, xK_Escape), spawn $ "xkill" )
  , ((modMask, xK_e), spawn $ "thunar" )
  , ((modMask, xK_s ), spawn $ "xfce4-settings-manager")
  --, ((modMask, xK_c), spawn $ "conky-toggle" )
  --, ((modMask, xK_y), spawn $ "polybar-msg cmd toggle" )
  

  -- FUNCTION KEYS
  , ((0, xK_F12), spawn $ "xfce4-terminal --drop-down" )

  -- SUPER + SHIFT KEYS

  , ((modMask .|. shiftMask , xK_r ), spawn $ "xmonad --recompile && xmonad --restart")
  , ((modMask .|. shiftMask , xK_q ), kill)
  -- , ((modMask .|. shiftMask , xK_x ), io (exitWith ExitSuccess))

 
  -- CONTROL + KEYS
    

  -- CONTROL + ALT KEYS

  , ((controlMask .|. mod1Mask , xK_v ), spawn $ "virt-manager")
  , ((controlMask .|. mod1Mask , xK_Prior ), spawn $ "conky-rotate -p")
  , ((controlMask .|. mod1Mask , xK_a ), spawn $ "xfce4-appfinder")
  , ((controlMask .|. mod1Mask , xK_b ), spawn $ "thunar")
  , ((controlMask .|. mod1Mask , xK_c ), spawn $ "catfish")
  , ((controlMask .|. mod1Mask , xK_e ), spawn $ "arcolinux-tweak-tool")
  , ((controlMask .|. mod1Mask , xK_f ), spawn $ "firefox")
  , ((controlMask .|. mod1Mask , xK_i ), spawn $ "nitrogen")
  , ((controlMask .|. mod1Mask , xK_o ), spawn $ "$HOME/.xmonad/scripts/picom-toggle.sh")
  , ((controlMask .|. mod1Mask , xK_t ), spawn $ "urxvt")
  , ((controlMask .|. mod1Mask , xK_u ), spawn $ "pavucontrol")
  --, ((controlMask .|. mod1Mask , xK_r ), spawn $ "rofi-theme-selector")
  --, ((controlMask .|. mod1Mask , xK_k ), spawn $ "arcolinux-logout")
  --, ((controlMask .|. mod1Mask , xK_l ), spawn $ "arcolinux-logout")
  --, ((controlMask .|. mod1Mask , xK_Next ), spawn $ "conky-rotate -n")
  
  
  -- ALT + ... KEYS

  , ((mod1Mask, xK_n), spawn $ "variety -n" )
  , ((mod1Mask, xK_F3), spawn $ "xfce4-appfinder" )
  , ((mod1Mask, xK_p), spawn $ "variety -p" )
  , ((mod1Mask, xK_r), spawn $ "xmonad --restart" )
  --, ((mod1Mask, xK_f), spawn $ "variety -f" )
  --, ((mod1Mask, xK_t), spawn $ "variety -t" )
  --, ((mod1Mask, xK_Up), spawn $ "variety --pause" )
  --, ((mod1Mask, xK_Down), spawn $ "variety --resume" )
  --, ((mod1Mask, xK_Left), spawn $ "variety -p" )
  --, ((mod1Mask, xK_Right), spawn $ "variety -n" )
  --, ((mod1Mask, xK_F2), spawn $ "xfce4-appfinder --collapsed" )

  --VARIETY KEYS WITH PYWAL

  --, ((mod1Mask .|. shiftMask , xK_f ), spawn $ "variety -f && wal -i $(cat $HOME/.config/variety/wallpaper/wallpaper.jpg.txt)&")
  --, ((mod1Mask .|. shiftMask , xK_n ), spawn $ "variety -n && wal -i $(cat $HOME/.config/variety/wallpaper/wallpaper.jpg.txt)&")
  --, ((mod1Mask .|. shiftMask , xK_p ), spawn $ "variety -p && wal -i $(cat $HOME/.config/variety/wallpaper/wallpaper.jpg.txt)&")
  --, ((mod1Mask .|. shiftMask , xK_t ), spawn $ "variety -t && wal -i $(cat $HOME/.config/variety/wallpaper/wallpaper.jpg.txt)&")
  --, ((mod1Mask .|. shiftMask , xK_u ), spawn $ "wal -i $(cat $HOME/.config/variety/wallpaper/wallpaper.jpg.txt)&")

  --CONTROL + SHIFT KEYS


  --SCREENSHOTS

  , ((0, xK_Print), spawn $ "flameshot gui")
  --, ((0, xK_Print), spawn $ "scrot 'ArcoLinux-%Y-%m-%d-%s_screenshot_$wx$h.jpg' -e 'mv $f $$(xdg-user-dir PICTURES)'")
  , ((controlMask, xK_Print), spawn $ "xfce4-screenshooter" )
  , ((controlMask .|. shiftMask , xK_Print ), spawn $ "gnome-screenshot -a -c")


  --MULTIMEDIA KEYS

  -- Mute volume
  , ((0, xF86XK_AudioMute), spawn $ "amixer -q set Master toggle")

  -- Decrease volume
  , ((0, xF86XK_AudioLowerVolume), spawn $ "amixer -q set Master 5%-")

  -- Increase volume
  , ((0, xF86XK_AudioRaiseVolume), spawn $ "amixer -q set Master 5%+")

  -- Increase brightness
  , ((0, xF86XK_MonBrightnessUp),  spawn $ "light -A 5")

  -- Decrease brightness
  , ((0, xF86XK_MonBrightnessDown), spawn $ "light -U 5")

--  , ((0, xF86XK_AudioPlay), spawn $ "mpc toggle")
--  , ((0, xF86XK_AudioNext), spawn $ "mpc next")
--  , ((0, xF86XK_AudioPrev), spawn $ "mpc prev")
--  , ((0, xF86XK_AudioStop), spawn $ "mpc stop")

  , ((0, xF86XK_AudioPlay), spawn $ "playerctl play-pause")
  , ((0, xF86XK_AudioNext), spawn $ "playerctl next")
  , ((0, xF86XK_AudioPrev), spawn $ "playerctl previous")
  , ((0, xF86XK_AudioStop), spawn $ "playerctl stop")


  --------------------------------------------------------------------
  --  XMONAD LAYOUT KEYS

  -- Cycle through the available layout algorithms.
  , ((modMask, xK_space), sendMessage NextLayout)

  --Focus selected desktop
  , ((mod1Mask, xK_Tab), nextWS)

  --Focus selected desktop
  , ((modMask, xK_Tab), nextWS)

  --Focus selected desktop
  , ((controlMask .|. mod1Mask , xK_Left ), prevWS)

  --Focus selected desktop
  , ((controlMask .|. mod1Mask , xK_Right ), nextWS)

  --  Reset the layouts on the current workspace to default.
  , ((modMask .|. shiftMask, xK_space), setLayout $ XMonad.layoutHook conf)

  -- Move focus to the next window.
  , ((modMask, xK_j), windows W.focusDown)

  -- Move focus to the previous window.
  , ((modMask, xK_k), windows W.focusUp  )

  -- Move focus to the master window.
  , ((modMask .|. shiftMask, xK_m), windows W.focusMaster  )

  -- Swap the focused window with the next window.
  , ((modMask .|. shiftMask, xK_j), windows W.swapDown  )

  -- Swap the focused window with the next window.
  , ((controlMask .|. modMask, xK_Down), windows W.swapDown  )

  -- Swap the focused window with the previous window.
  , ((modMask .|. shiftMask, xK_k), windows W.swapUp    )

  -- Swap the focused window with the previous window.
  , ((controlMask .|. modMask, xK_Up), windows W.swapUp  )

  -- Shrink the master area.
  , ((controlMask .|. shiftMask , xK_h), sendMessage Shrink)

  -- Expand the master area.
  , ((controlMask .|. shiftMask , xK_l), sendMessage Expand)

  -- Push window back into tiling.
  , ((controlMask .|. shiftMask , xK_t), withFocused $ windows . W.sink)

  -- Increment the number of windows in the master area.
  , ((controlMask .|. modMask, xK_Left), sendMessage (IncMasterN 1))

  -- Decrement the number of windows in the master area.
  , ((controlMask .|. modMask, xK_Right), sendMessage (IncMasterN (-1)))

  ]
  ++

  -- mod-[1..9], Switch to workspace N
  -- mod-shift-[1..9], Move client to workspace N
  [((m .|. modMask, k), windows $ f i)

  --Keyboard layouts
  --qwerty users use this line
   | (i, k)  W.greedyView i . W.shift i, shiftMask)]]

  ++
  -- ctrl-{w,e,r}, Switch to physical/Xinerama screens 1, 2, or 3
  -- ctrl-shift-{w,e,r}, Move client to screen 1, 2, or 3
  [((m .|. controlMask, key), screenWorkspace sc >>= flip whenJust (windows . f))
      | (key, sc)  keys azertyConfig }
  --Belgian Azerty users use this line
            --myBaseConfig { keys = belgianKeys  keys belgianConfig }

                {startupHook = myStartupHook
, layoutHook = gaps [(U,35), (D,5), (R,5), (L,5)] $ myLayout ||| layoutHook myBaseConfig
, manageHook = manageSpawn  myManageHook  manageHook myBaseConfig
, modMask = myModMask
, borderWidth = myBorderWidth
, handleEventHook    = handleEventHook myBaseConfig  fullscreenEventHook
, focusFollowsMouse = myFocusFollowsMouse
, workspaces = myWorkspaces
, focusedBorderColor = focdBord
, normalBorderColor = normBord
, keys = myKeys
, mouseBindings = myMouseBindings
}

Under LXDE desktop manager Alt+F11 can be used to switch a program to full screen. I use this shortcut so often that'd I rather have certain programs always open in full screen instead of doing it manually. Is it possible to define some system configuration, or a shell script that'd always launch particular programs in full screen? (Particular not all because I wouldn't want certain small windows like network configuration window and system calendar to open in full screen).

I am having trouble getting the Code editor to exit full-screen mode on my Elementary OS system. I have tried using the Windows key together with down arrow, and also F11, but neither method works. I also attempted to adjust the Window Controls in Settings, but this did not solve the issue. Do you have any suggestions for how I can exit full-screen mode?

I'm running libvirt-1.3.5-1 and qemu-2.6.0-1 on Manjaro **16.0**. Whenever I run a VM full screen, the slider that I once expected to slide down, which would allow me to resume from full screen doesn't show up when I move the mouse over to the top of the window. It's there and active since I can click blindly and — by chance — click the «*Leave Fullscreen*» button but it's just invisible. BTW none of the tips and tricks mentioned in AskUbuntu work for me. I've tried with two of my virtual machines (one Windows, one Linux Mint) and the issue is the same and I'm assuming it's also true for all (about 10) of them. Is there anything I can do to force this sliding panel to appear?

I am using Openbox with tint2 panel. I want to run the Midori browser to see only a web page without the gtk title bar of the browser. For example I run midori with this command: $ midori -a https://unix.stackexchange.com/ If I set no in openbox rc.xml, the title bar of Midori is shown anyway. So I am searching a way to not whow the title bar of the gtk application. A possible solution is to start Midori in fullscreen mode whit this command: $ midori -a https://unix.stackexchange.com/ -e Fullscreen but in this case the tint2 panel is covered by the fullscreen window. There is a way to limit the area for the fullscreen window in Openbox? I tried with margin option in rc.xml, but this doesn't work with fullscreen windows.

I am using XFCE and I have (finally) recently upgraded from Debian buster to bullseye. Since the upgrade I have a strange issue when using dual monitors. I regularly plug my laptop to a bigger monitor and simply mirror the displays despite their resolutions being different. Until the upgrade, maximising a window or entering fullscreen mode while watching a video would (correctly IMO) make the window span the largest of the two screens. Since the upgrade, it will only cover the smallest of the two screens, leaving part of the desktop background visible around it on the bigger screen. The workaround I have found is to open arandr, deactivate the primary screen (the laptop's) and then reactivate it. This is obviously suboptimal and I'd like to find a way to get XFCE to revert back to systematically privileging the wider of the two screens as soon as I plug it in. Edit: turns out I do get the right behaviour when I shut the lid which is already more convenient than (de/re)activating the screen.

Whenever Okular is full screen, the on screen keyboard Onboard goes behind it. How to pin onboard on top of full screen apps like Okular? I am using Debian LXDE.

I just installed a fresh Fedora 34, and plan to use this as a home theatre. While my Fedora starts fine, the desktop starts shrunk down, as if I am supposed to pick from one of multiple desktops as shown below: How can I make my session start with the default desktop full screen? So that I don't have to use a mouse and click a desktop before the screen is usable.

I have an application (namely zoom) that automatically goes fullscreen and does not provides a way to disable that (you can exit fullscreen but you have to do that every time someone shares its screen). I wonder if there is a way to deny any application to go fullscreen or to make it think its fullscreen but fake it inside a window. I guess a VM would do the job but its a great cost for that. I'm not looking for a zoom specific solution for now,hence this question. I'm on manjaro with xfce.

On my Pop!_OS machine (Ubuntu derivative) I sometimes use the full-screen mode in browsers to focus more using the F11 key. Now, running macOS as a VM via sosumi, I'm in the need of making that QEMU window fullscreen, but F11 won't do the work. I noticed that I also can't make Nautilus (file manager) fullscreen with F11. Is there something I could use to make that window fullscreen?

I use Virtual Box in my MX Linux to try different distros without harming my system. Previously, I tried Pop OS in the Virtual Box, and it ran smooth, and I could use that in full screen. However, when I tried to do the same for Windows11 and Opensuse, I failed. There is an option named Insert guest additions Image under the devices tab as far as I knew. Using that, the black screen surrounding the OS window could be removed by me, and the OS would take on the whole screen in the full-screen mode. However, that does not work either. Here, I am sharing the pictures for the demonstration. Below is the picture, where you can see that the OS screen is not in full screen. And the other picture shows that "the Insert Guest Additions Image" cannot be run due to some unknown error. Is there any way to solve this issue? Please let me know.

I want to run a single application, specifically a Vulkan game, on Linux. I kind of want it to be like a kiosk, but not just for displaying information. The operating system's one use for me is to run this application.
How exactly do I do this? I am new to Linux, so I don't know much about how to work with it.

My desktop is running xfce4, and I have sloppy focus, and a multi-monitor setup. When I move the mouse off a fullscreen window (to the other monitor) (be it the web browser in full screen, or an image viewer in presentation mode etc...), the fullscreen window on the initial monitor goes to the background, all other normal windows are now in front of it. Or, to describe it differently, as soon as the full screen window loses focus, it goes into the background. Any idea how to prevent this?

Firefox Ready ============ #Objective# I want my ubuntu to start and show a Duck Duck Go in fullscreen. #Motivation# The first thing that I do on my PC is launch the Firefox and do stuff. For other stuff I hit the ctrl+alt+T and do things in the terminal. I want Firefox to start and be ready for me to work on. #Ethics# Saving Time, Making the computer have a better workflow for a person like me [someone who spends most of his time using the browser], serving my laziness. #Initial Hypothesis# I can make linux run Firefox using some commands at startup which will make it run in fullscreen and have opened the Duck Duck Go page. #Updates# **20:56:44 15/08/18:** I am learning the commands available for Firefox from here . **21:12:15 15/08/18:** Done with commands. The command to start Firefox with default user and make it launch Duck Duck Go is firefox “www.duckduckgo.com”. I only need to find a way to make it open in fullscreen now. **21:35:48 15/08/18:** There is no way fullscreen launch can be performed using firefox’s commands. Neither does linux have any command to make Firefox launch in fullscreen. I might need to either send a keystroke F11 or use some plugin to accomplish this. But sending a keystore needs moe than one command and I don’t know if that will be as easy or not. And using a plugin is not favourable firstly because I don’t want every Firefox launch to be in fullscreen and secondly I don’t want to install another plugin. **16/08/18** **14:07:48** I asked on stack exchange and someone suggested to use xdotool. **14:22:17** I am learning xdotool **14:56:18** The stack exchange command didnot work for me. What works for me instead is xdotool search -class firefox key –-window %@ --delay 1000ms F11. Now I am not able to give the command to launch firefox and use the xdotool in the same line. I need to learn bash. **16:45:34 04/11/18:** Its been so long since I abandoned this project. Let me look at it agian, without revising on any of the updates and the old initial hypothesis. **16:49:51 04/11/18:** just added this `firefox -url http://superuser.com & xdotool search --sync --onlyvisible --class "Firefox" windowactivate key F11` to startup application list. It did worked when I passed from the terminal though. Lets see if it works after restart. Will it work on logout and login? Lets see. **16:54:54 04/11/18:** It did took me into firefox with duckduckgo but it also tried to take me to the url f11. Maybe I need to tweak it a bit. Its actually ment for terminal and not for single line command which is need in startup application. BTW it did work with log out and in. Second try. This time I removed the ‘&’ from the previous command. **16:58:17 04/11/18:** Still didn’t work!! Same issue. I guess I’ll try sending this log to someone inside firefox. Maybe they will be able to help.

# Current Situation I'm suspending my laptop after a 30 minutes of idle state. I'm using [this code](https://unix.stackexchange.com/a/122816/65781) inside [this script](https://github.com/ceremcem/on-idle/blob/master/on-idle.sh) to detect the idle duration. # Original Problem VLC (and I'm pretty sure that any other video player that prevents screen saver from running) sends a periodic signal (on every 30 seconds) to disturb the mouse/keyboard events, so screen saver (thus my code) thinks that "end of idle time is reached" and never runs the desired command until VLC finishes playing the video playlist. # Introduced Problem I worked around it by ignoring any small user input by keeping track of an offset. If the disturbance is very short, I just add up the previous measurement to the offset variable, so, the main problem is gone. However, I've also disabled the "suppress the screensaver while watching video" feature of VLC. Now I want to add this feature back. # Question How can I detect if VLC is playing a full screen video (or more preferably, any "full screen video state" from any player) so I could disable "my screensaver" only when an application/VLC is in full screen mode?