Sergei Poljanski
1320decc26
meta_wayland_touch_cancel() clears focus_surface on active touches but keeps their serials until the finger lifts. A client asking for a move/resize grab with such a serial (anotherim-js's resize edges by touch) makes touch_can_grab_surface() dereference NULL and takes down gnome-shell (four crashes on 2026-10-13, same address). Carry a one-line NULL check until nixpkgs' mutter has a fix; it is not upstream as of mutter 50.2 / main. Assisted-by: Claude:opus-5
80 lines
2.7 KiB
Nix
80 lines
2.7 KiB
Nix
# Desktop environment, display, and audio configuration
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{ config, pkgs, lib, ... }:
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{
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# AMD GPU
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hardware.graphics = {
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enable = true;
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enable32Bit = true; # For Steam/Wine
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};
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# Enable the X11 windowing system.
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services.xserver.enable = true;
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# Enable the GNOME Desktop Environment.
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services.displayManager.gdm.enable = true;
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services.desktopManager.gnome.enable = true;
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# gnome-shell segfaults in touch_can_grab_surface() when a client asks for
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# a move/resize grab with the serial of a cancelled touch (NULL
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# focus_surface). Not fixed upstream as of mutter 50.2 / main 2026-10-13.
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# Drop once nixpkgs' mutter carries a fix.
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nixpkgs.overlays = [
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(final: prev: {
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mutter = prev.mutter.overrideAttrs (old: {
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patches = (old.patches or [ ]) ++ [ ../patches/mutter-touch-cancelled-grab.patch ];
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});
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})
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];
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# Let systemd-logind own all sleep/idle policy. gsd-power otherwise
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# second-guesses suspend-then-hibernate and re-wakes the machine before
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# HibernateDelaySec elapses (observed on P14s G6 AMD). Set via dconf
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# system db (gsettings-overrides only compiles desktop/shell/mutter
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# schemas, so a g-s-d plugin override there is silently dropped).
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programs.dconf.profiles.user.databases = [{
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settings = {
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"org/gnome/settings-daemon/plugins/power" = {
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sleep-inactive-battery-type = "nothing";
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sleep-inactive-ac-type = "nothing";
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power-button-action = "nothing";
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};
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};
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}];
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# Configure keymap in X11
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services.xserver.xkb = {
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layout = "us,ru";
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variant = "";
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options = "grp:alt_shift_toggle";
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};
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# Enable CUPS to print documents.
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services.printing.enable = true;
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# Enable sound with pipewire.
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services.pulseaudio.enable = false;
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security.rtkit.enable = true;
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services.pipewire = {
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enable = true;
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alsa.enable = true;
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alsa.support32Bit = true;
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pulse.enable = true;
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# If you want to use JACK applications, uncomment this
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# jack.enable = true;
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};
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# Enable touchpad support (enabled default in most desktopManager).
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# services.xserver.libinput.enable = true;
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# P14s G6 AMD: the F4 mic-mute LED (platform::micmute) is driven by the
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# kernel's `audio-micmute` trigger, which follows the HD-audio codec's
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# hardware capture-mute. PipeWire mutes in software at the node level and
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# never touches that codec mute, so the trigger reports "muted" (LED lit)
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# permanently while the mic actually works. Detach the trigger and force
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# the LED off at boot. Verified: writing brightness=0 clears it, so the EC
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# is fine — this is purely a trigger/software-mute mismatch.
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services.udev.extraRules = ''
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ACTION=="add", SUBSYSTEM=="leds", KERNEL=="platform::micmute", ATTR{trigger}="none", ATTR{brightness}="0"
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'';
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}
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