qsu
November 16, 2024, 9:48pm
1
tl;dr possible to setup a config-based disablement of touchscreen’s touch-interactions? I think I’ve identified the faulty touchscreen via xinput below (and I’m 99% sure there’s no bios disable-option; I hunted around that UI thrice already). I’d love to hear I’m wrong about BIOS though… that’d be much easier.
I have a Lenovo ThinkPad X1 Nano Gen 1 (20UN005JUS) for which the laptop’s screen just got violently stepped on. It’s still usable and crystal clear, except the touchscreen sensor is now erratically detecting inputs. I am able to disable it via xinput --disable 9 (the device listed as xwayland-keyboard:15 id=9 [slave keyboard (3)]), but I’m obviously looking for a way to codify this properly in my nix config files. Can anyone point me in the right direction?
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ xwayland-pointer:15 id=6 [slave pointer (2)]
⎜ ↳ xwayland-relative-pointer:15 id=7 [slave pointer (2)]
⎜ ↳ xwayland-pointer-gestures:15 id=8 [slave pointer (2)]
⎜ ↳ xwayland-touch:15 id=10 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ xwayland-keyboard:15 id=9 [slave keyboard (3)]
$ sudo xinput --disable 9
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ xwayland-pointer:15 id=6 [slave pointer (2)]
⎜ ↳ xwayland-relative-pointer:15 id=7 [slave pointer (2)]
⎜ ↳ xwayland-pointer-gestures:15 id=8 [slave pointer (2)]
⎜ ↳ xwayland-touch:15 id=10 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
∼ xwayland-keyboard:15 id=9 [floating slave]
qsu
November 18, 2024, 3:28am
2
two new websearches I’m trying:
a. “nixos libinput” to see if there’s a general guide on passing commands like above but via config
b. “gnome 40 disable touchscreen” to see if there’s alternatives to my above method (libinput gives me warnings about my wayland usage)
the latter reveals this ZorinOS forum thread with a suggestionffor a new udev rule setting ATTR{authorized}="0" for the matching device (the full line given:SUBSYSTEM=="usb", ATTRS{idVendor}=="VID", ATTRS{idProduct}=="PID", ATTR{authorized}="0"). udev sounds better because I know there’s good udev config support in nixos, but I’m not sure what my device IDs would be… I see the following when running lsusb:
$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 04f2:b6ea Chicony Electronics Co., Ltd Integrated Camera
Bus 003 Device 004: ID 8087:0026 Intel Corp. AX201 Bluetooth
Bus 003 Device 005: ID 06cb:00bd Synaptics, Inc. Prometheus MIS Touch Fingerprint Reader
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
I’m guessing my touchscreen, if it’s even listed there, is one of the first three lines or the last line. If anyone has ideas/knowledge here, please share!
Searching the web for how to identify a screen in udev’s terms, I only found a udevadm info CLI, but it doesn’t reveal anything that makes me confident I’m even looking at the right item:
output of `udevadm info --query=property --name=/dev/input${i}` run in a loop
$ xinput
WARNING: running xinput against an Xwayland server. See the xinput man page for details.
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ xwayland-pointer:15 id=6 [slave pointer (2)]
⎜ ↳ xwayland-relative-pointer:15 id=7 [slave pointer (2)]
⎜ ↳ xwayland-pointer-gestures:15 id=8 [slave pointer (2)]
⎜ ↳ xwayland-touch:15 id=10 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
∼ xwayland-keyboard:15 id=9 [floating slave]
udevadm output for '2'...
1 +:38:: udevadm info --query=property --name /dev/input/event2
2 DEVPATH=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input3/event2
3 DEVNAME=/dev/input/event2
4 MAJOR=13
5 MINOR=66
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34340048
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_INPUT_SWITCH=1
11 ID_PATH=acpi-PNP0C0D:00
12 ID_PATH_TAG=acpi-PNP0C0D_00
13 LIBINPUT_DEVICE_GROUP=19/0/5:PNP0C0D/button
14 TAGS=:power-switch:
15 CURRENT_TAGS=:power-switch:
udevadm output for '4'...
1 +:38:: udevadm info --query=property --name /dev/input/event4
2 DEVPATH=/devices/platform/INTC1051:00/input/input5/event4
3 DEVNAME=/dev/input/event4
4 MAJOR=13
5 MINOR=68
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34353564
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_INPUT_KEY=1
11 ID_PATH=platform-INTC1051:00
12 ID_PATH_TAG=platform-INTC1051_00
13 DEVLINKS=/dev/input/by-path/platform-INTC1051:00-event
14 TAGS=:power-switch:
15 CURRENT_TAGS=:power-switch:
udevadm output for '6'...
1 +:38:: udevadm info --query=property --name /dev/input/event6
2 DEVPATH=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN0670:00/0018:04F3:3150.0001/input/input17/event6
3 DEVNAME=/dev/input/event6
4 MAJOR=13
5 MINOR=70
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34701632
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_INPUT_TOUCHPAD=1
11 ID_INPUT_WIDTH_MM=98
12 ID_INPUT_HEIGHT_MM=53
13 ID_SERIAL=noserial
14 ID_PATH=pci-0000:00:15.0-platform-i2c_designware.0
15 ID_PATH_TAG=pci-0000_00_15_0-platform-i2c_designware_0
16 LIBINPUT_DEVICE_GROUP=18/4f3/3150:i2c-ELAN0670:00
17 DEVLINKS=/dev/input/by-path/pci-0000:00:15.0-platform-i2c_designware.0-event-mouse
udevadm output for '7'...
1 +:38:: udevadm info --query=property --name /dev/input/event7
2 DEVPATH=/devices/platform/i8042/serio1/input/input6/event7
3 DEVNAME=/dev/input/event7
4 MAJOR=13
5 MINOR=71
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34702196
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT_POINTINGSTICK=1
10 ID_INPUT=1
11 ID_INPUT_MOUSE=1
12 ID_BUS=i8042
13 ID_SERIAL=noserial
14 ID_PATH=platform-i8042-serio-1
15 ID_PATH_TAG=platform-i8042-serio-1
16 LIBINPUT_DEVICE_GROUP=11/2/a:isa0060/serio1
17 DEVLINKS=/dev/input/by-path/platform-i8042-serio-1-event-mouse
udevadm output for '8'...
1 +:38:: udevadm info --query=property --name /dev/input/event8
2 DEVPATH=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-ELAN901C:00/0018:04F3:2BB5.0002/input/input18/event8
3 DEVNAME=/dev/input/event8
4 MAJOR=13
5 MINOR=72
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34702232
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_INPUT_TOUCHSCREEN=1
11 ID_INPUT_WIDTH_MM=275
12 ID_INPUT_HEIGHT_MM=181
13 ID_PATH=pci-0000:00:15.1-platform-i2c_designware.1
14 ID_PATH_TAG=pci-0000_00_15_1-platform-i2c_designware_1
15 LIBINPUT_DEVICE_GROUP=18/4f3/2bb5:i2c-ELAN901C:00
16 DEVLINKS=/dev/input/by-path/pci-0000:00:15.1-platform-i2c_designware.1-event
udevadm output for '10'...
1 +:38:: udevadm info --query=property --name /dev/input/event10
2 DEVPATH=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-ELAN901C:00/0018:04F3:2BB5.0002/input/input20/event10
3 DEVNAME=/dev/input/event10
4 MAJOR=13
5 MINOR=74
6 SUBSYSTEM=input
7 USEC_INITIALIZED=35044579
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_PATH=pci-0000:00:15.1-platform-i2c_designware.1
11 ID_PATH_TAG=pci-0000_00_15_1-platform-i2c_designware_1
12 LIBINPUT_DEVICE_GROUP=18/4f3/2bb5:i2c-ELAN901C:00
13 DEVLINKS=/dev/input/by-path/pci-0000:00:15.1-platform-i2c_designware.1-event
udevadm output for '3'...
1 +:38:: udevadm info --query=property --name /dev/input/event3
2 DEVPATH=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input4/event3
3 DEVNAME=/dev/input/event3
4 MAJOR=13
5 MINOR=67
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34344217
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_INPUT_KEY=1
11 ID_PATH=acpi-LNXPWRBN:00
12 ID_PATH_TAG=acpi-LNXPWRBN_00
13 LIBINPUT_DEVICE_GROUP=19/0/1:LNXPWRBN/button
14 TAGS=:power-switch:
15 CURRENT_TAGS=:power-switch:
udevadm output for '5'...
1 +:38:: udevadm info --query=property --name /dev/input/event5
2 DEVPATH=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN0670:00/0018:04F3:3150.0001/input/input15/event5
3 DEVNAME=/dev/input/event5
4 MAJOR=13
5 MINOR=69
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34701086
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_INPUT_POINTINGSTICK=1
11 ID_INPUT_MOUSE=1
12 ID_SERIAL=noserial
13 ID_PATH=pci-0000:00:15.0-platform-i2c_designware.0
14 ID_PATH_TAG=pci-0000_00_15_0-platform-i2c_designware_0
15 LIBINPUT_DEVICE_GROUP=18/4f3/3150:i2c-ELAN0670:00
16 DEVLINKS=/dev/input/by-path/pci-0000:00:15.0-platform-i2c_designware.0-event-mouse
udevadm output for '9'...
1 +:38:: udevadm info --query=property --name /dev/input/event9
2 DEVPATH=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-ELAN901C:00/0018:04F3:2BB5.0002/input/input19/event9
3 DEVNAME=/dev/input/event9
4 MAJOR=13
5 MINOR=73
6 SUBSYSTEM=input
7 USEC_INITIALIZED=34702267
8 PATH=/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/bin:/nix/store/z6q01drqm7y4ndzp9yvjr1i89irvz7lv-udev-path/sbin
9 ID_INPUT=1
10 ID_PATH=pci-0000:00:15.1-platform-i2c_designware.1
11 ID_PATH_TAG=pci-0000_00_15_1-platform-i2c_designware_1
12 LIBINPUT_DEVICE_GROUP=18/4f3/2bb5:i2c-ELAN901C:00
13 DEVLINKS=/dev/input/by-path/pci-0000:00:15.1-platform-i2c_designware.1-event
cat /proc/bus/input/devices also has some interesting/relevant-looking input, but not sure how to utilize it yet…