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| author |  sommerfeld <sommerfeld@sommerfeld.dev> | 2026-05-13 13:43:33 +0100 |
|---|---|---|
| committer | sommerfeld <sommerfeld@sommerfeld.dev> | 2026-05-13 13:43:33 +0100 |
| commit | 120ee3a0712594fb0c4fdf99c04f0e9d8874335d (patch) | |
| tree | 8d1085b0e3512e8cb851cfdfcab362d7922c08f9 | |
| parent | 66427c37fcc05ffbecde726aeea77ccfb1b860de (diff) | |
| download | dotfiles-120ee3a0712594fb0c4fdf99c04f0e9d8874335d.tar.gz dotfiles-120ee3a0712594fb0c4fdf99c04f0e9d8874335d.tar.bz2 dotfiles-120ee3a0712594fb0c4fdf99c04f0e9d8874335d.zip | |
fix(logind): ignore KEY_POWER short-press to stop Shokz dongle shutdowns
The Shokz OpenMeet dongle (3511:2EF2) emits KEY_POWER on USB
enumeration and on headset power transitions, which logind handles
with HandlePowerKey=poweroff and immediately shuts the host down.
The previous attempt — an hwdb scancode remap of c0030 to reserved —
sets the udev property correctly but the kernel does not honor
EVIOCSKEYCODE for this device's HID consumer-page mapping (verified:
KEY_POWER 116 still appears in the evdev keymap after udevadm trigger
and libinput still reports it). Drop the hwdb file and the
systemd-hwdb hooks from the etc deploy script.
Replace with a logind drop-in that sets HandlePowerKey=ignore and
HandlePowerKeyLongPress=poweroff. Single-tap power events from any
source become no-ops; a 5s hold still shuts the machine down, so the
real hardware-power-button safety net is preserved. Add a HUP to
systemd-logind in the deploy script so the change takes effect
without restarting the daemon.
| -rw-r--r-- | etc/systemd/logind.conf.d/10-ignore-power-key.conf | 11 | ||||
| -rw-r--r-- | etc/udev/hwdb.d/70-shokz-openmeet.hwdb | 7 | ||||
| -rwxr-xr-x | run_onchange_after_deploy-etc.sh.tmpl | 7 |
3 files changed, 14 insertions, 11 deletions
diff --git a/etc/systemd/logind.conf.d/10-ignore-power-key.conf b/etc/systemd/logind.conf.d/10-ignore-power-key.conf new file mode 100644 index 0000000..b5d5e34 --- /dev/null +++ b/etc/systemd/logind.conf.d/10-ignore-power-key.conf @@ -0,0 +1,11 @@ +[Login] +# Ignore single-tap KEY_POWER from any source. The Shokz OpenMeet dongle +# (3511:2EF2) emits KEY_POWER on USB enumeration and on headset power +# transitions, which would otherwise immediately shut the host down. An +# hwdb scancode remap was attempted but the kernel does not honor +# EVIOCSKEYCODE for this device's HID consumer-page mapping. +# +# Long-press (>=5s) still triggers poweroff, preserving the real +# hardware-power-button safety net. +HandlePowerKey=ignore +HandlePowerKeyLongPress=poweroff diff --git a/etc/udev/hwdb.d/70-shokz-openmeet.hwdb b/etc/udev/hwdb.d/70-shokz-openmeet.hwdb deleted file mode 100644 index f35b94e..0000000 --- a/etc/udev/hwdb.d/70-shokz-openmeet.hwdb +++ /dev/null @@ -1,7 +0,0 @@ -# Shokz OpenMeet (Loop120 dongle, 3511:2EF2) emits HID Consumer-page Power -# (scancode c0030 -> KEY_POWER) on enumeration AND when the headset is -# powered off, which causes systemd-logind to shut down the host. Suppress -# only that scancode; KEY_MUTE / volume / media keys on the same Consumer -# Control node remain functional. -evdev:input:b0003v3511p2EF2* - KEYBOARD_KEY_c0030=reserved diff --git a/run_onchange_after_deploy-etc.sh.tmpl b/run_onchange_after_deploy-etc.sh.tmpl index adf00eb..d08f989 100755 --- a/run_onchange_after_deploy-etc.sh.tmpl +++ b/run_onchange_after_deploy-etc.sh.tmpl @@ -27,10 +27,9 @@ done # sudo-rs: /etc/pam.d/sudo-i is a symlink to /etc/pam.d/sudo sudo ln -sfT sudo /etc/pam.d/sudo-i -# Recompile the udev hardware database so any etc/udev/hwdb.d/*.hwdb files -# we just deployed take effect on next device event. -sudo systemd-hwdb update -sudo udevadm trigger --subsystem-match=input --action=change +# Reload systemd-logind so changes under /etc/systemd/logind.conf.d/ +# (e.g. HandlePowerKey overrides) take effect without dropping sessions. +sudo systemctl kill -s HUP systemd-logind # Make sudo-rs the system-wide sudo via /usr/local/bin precedence. # Targets may not exist yet on first bootstrap (sudo-rs is installed by |