Touchpad's palm detection works very poorly

I have Mi Notebook Pro (15.6 inches), it has very big, usable touchpad (apparently, manufactured by Elantech). But it's palm detection works very poorly. I started to bang my head with it in hope to tweak my touchpad and found that there is actually _two_. Here is the list: $ sudo libinput list-devices | grep -A18 Touchapd Device: ETD2303:00 04F3:3083 Touchpad Kernel: /dev/input/event5 Group: 6 Seat: seat0, default Size: 125x78mm Capabilities: pointer gesture Tap-to-click: disabled Tap-and-drag: enabled Tap drag lock: disabled Left-handed: disabled Nat.scrolling: disabled Middle emulation: disabled Calibration: n/a Scroll methods: *two-finger edge Click methods: *button-areas clickfinger Disable-w-typing: enabled Accel profiles: none Rotation: n/a -- Device: ETPS/2 Elantech Touchpad Kernel: /dev/input/event8 Group: 10 Seat: seat0, default Size: 125x81mm Capabilities: pointer gesture Tap-to-click: disabled Tap-and-drag: enabled Tap drag lock: disabled Left-handed: disabled Nat.scrolling: disabled Middle emulation: disabled Calibration: n/a Scroll methods: *two-finger edge Click methods: *button-areas clickfinger Disable-w-typing: enabled Accel profiles: none Rotation: n/a The touchpad which actually produces input events is ETD2303:00 04F3:3083 Touchpad (/dev/input/event5), I found it out using libinput debug-events. It raises a bunch of questions. The general one is why there is two touchpads? The touchpad in my laptop have fingerprint scanner (I'm not using it), could be that the second one is a fingerprint scanner? The second major question is as follows. It seems like there is no proper driver for my touchpad in the kernel because of strange name of listed touchpad (is it PCI ven:dev IDs?). How to check that? And last, but not least question is how to tune palm detection so it will work more conveniently? Is it possible in the first place? I've Budgie 10.5 (Gnome stack 3.28.1), xorg 1.20.3, xorg-driver-input-libinput 0.28.1, libinput 1.12.3, and linux 4.19.8. # UPD I accidentally looked at kernel logs and found very interesting thing: it is _fuuuuuull_ of this event: i2c_hid i2c-ETD2303:00: i2c_hid_get_input: incomplete report (14/65535) When I did it there was almost _billion_ of this event! I decided to reboot and then measure frequency again: $ uptime 01:13:31 up 13 min, 1 user, load average: 0,14, 0,61, 0,67 $ journalctl -k | grep i2c-ETD2303:00 | wc -l 24219 As you can see, ~24 thousands of same event in 13 min is insane. So, here is another questions: what's it to hid-i2c here? Isn't that this touchpad driver is elantech? I found this question , there is advice in the answer to disable "HID over I2c" feature. I've no option in firmware setup to do that. Can it be done programmatically? Is that the touchpad "phisically" wired over I2c?