Bug#1058750: libgtk-4-1: GTK hang and crash on Intel i915

[behzad]

Package: libgtk-4-1
Version: 4.12.4+ds-3
Severity: important
X-Debbugs-Cc: behzadasbahi at gmail.com

Dear Maintainer,

I updated my debian unstable and GNOME desktop and GTK4 applications
(not GTK3) are hanging and crashing and unusable. I get these in dmesg:

```
[    4.979276] i915 0000:00:02.0: vgaarb: deactivate vga console
[    4.982573] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    5.036888] i915 0000:00:02.0: [drm] Skipping intel_backlight registration
[    5.037230] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[    5.057543] fbcon: i915drmfb (fb0) is primary device
[    5.876043] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[   24.523339] snd_hda_intel 0000:00:1b.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[  120.904757] i915 0000:00:02.0: [drm] GPU HANG: ecode 5:1:790a817b, in gnome-shell [1254]
[  120.905118] i915 0000:00:02.0: [drm] Resetting chip for stopped heartbeat on rcs0
[  121.007279] i915 0000:00:02.0: [drm] gnome-shell[1254] context reset due to GPU hang
```

I don't know what is the problem but I'm using Phosh temporarily and can
run GTK4 apps from terminal with `LIBGL_ALWAYS_SOFTWARE=1` variable.

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.5.0-5-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libgtk-4-1 depends on:
ii  adwaita-icon-theme            45.0-2
ii  hicolor-icon-theme            0.17-2
ii  libc6                         2.37-13
ii  libcairo-gobject2             1.18.0-1
ii  libcairo-script-interpreter2  1.18.0-1
ii  libcairo2                     1.18.0-1
ii  libcloudproviders0            0.3.5-1
ii  libcolord2                    1.4.6-4
ii  libcups2                      2.4.7-1
ii  libepoxy0                     1.5.10-1
ii  libfontconfig1                2.14.2-6
ii  libfribidi0                   1.0.13-3
ii  libgdk-pixbuf-2.0-0           2.42.10+dfsg-3
ii  libglib2.0-0                  2.78.3-1
ii  libgraphene-1.0-0             1.10.8-2
ii  libgtk-4-common               4.12.4+ds-3
ii  libharfbuzz0b                 8.0.1-1
ii  libjpeg62-turbo               1:2.1.5-2
ii  libpango-1.0-0                1.51.0+ds-3
ii  libpangocairo-1.0-0           1.51.0+ds-3
ii  libpangoft2-1.0-0             1.51.0+ds-3
ii  libpng16-16                   1.6.40-2
ii  libtiff6                      4.5.1+git230720-3
ii  libwayland-client0            1.22.0-2.1
ii  libwayland-egl1               1.22.0-2.1
ii  libx11-6                      2:1.8.7-1
ii  libxcursor1                   1:1.2.1-1
ii  libxdamage1                   1:1.1.6-1
ii  libxext6                      2:1.3.4-1+b1
ii  libxfixes3                    1:6.0.0-2
ii  libxi6                        2:1.8-1+b1
ii  libxinerama1                  2:1.1.4-3
ii  libxkbcommon0                 1.6.0-1
ii  libxrandr2                    2:1.5.2-2+b1
ii  shared-mime-info              2.4-1

Versions of packages libgtk-4-1 recommends:
ii  iso-codes                 4.15.0-1
ii  libgtk-4-bin              4.12.4+ds-3
ii  libgtk-4-media-gstreamer  4.12.4+ds-3
ii  librsvg2-common           2.54.7+dfsg-2

Versions of packages libgtk-4-1 suggests:
ii  gvfs  1.52.1-1

-- no debconf information