How can I disable the touchscreen when closing the lid?

My GPD Win MAX 2 (2024) unfortunately registers phantom touch events when closed and used via a dock. I can disable the touchscreen via command line (with sudo bash -c 'echo "0018:27C6:0113.0004" > /sys/bus/hid/drivers/hid-multitouch/unbind').

Now I would like to tie this to opening / closing the lid. How can I run this command (and the corresponding bind-version) when the lid is triggered?

HikariKnight•12/17/24, 11:30 AM

you would find the state with cat /proc/acpi/button/lid/LID0/statecat /proc/acpi/button/lid/LID0/state or cat /proc/acpi/button/lid/LID/statecat /proc/acpi/button/lid/LID/state IIRC
the rest i am not sure what would be the best approach for you.

ShadeOP•12/18/24, 4:45 AM

What approches are there? Specifically, is there a way to trigger a script when the lid state changes?

HikariKnight•12/18/24, 12:03 PM

as i said no idea

HikariKnight•12/18/24, 12:04 PM

i know you can make scripts trigger on sleep and wake but thats about it and i used that many many many years ago

HHikariKnight you would find the state with `cat /proc/acpi/button/lid/LID0/state` or `cat /pr...

ShadeOP•12/18/24, 12:17 PM

Ah, my bad. I thought you meant there are several options and you don't know which one would work for me.

HikariKnight•12/18/24, 12:37 PM

nope i meant i have no clue what the best approach would be

antheas•12/18/24, 12:52 PM

the touchscreen shouldnt work if the screen is off i think

Aru•12/18/24, 8:58 PM

i wonder if a udev rule could be used for this.

for reference, a different workaround runs ryzenadj --max-performanceryzenadj --max-performance on AC power state changes. perhaps something similar can be made for lid changes.

cat <<EOF > "/etc/udev/rules.d/99-power-source-change.rules"
SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="/usr/bin/ryzenadj --max-performance"
EOF

udevadm control --reload-rules

cat <<EOF > "/etc/udev/rules.d/99-power-source-change.rules"
SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="/usr/bin/ryzenadj --max-performance"
EOF

udevadm control --reload-rules

Aantheas the touchscreen shouldnt work if the screen is off i think

ShadeOP•12/20/24, 7:05 AM

Yeah, I'd think so too. But unfortunately it does, I get weird phantom touch events in the lower middle screen when using the laptop on a dock (with the lid closed).

AAru i wonder if a udev rule could be used for this. for reference, a different work...

ShadeOP•12/20/24, 7:06 AM

That is an interesting idea, I'll certainly have a look.

How can I disable the touchscreen when closing the lid?

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