Bug#1027452: libmutter-11-0: ffmpeg kmsgrab stopped working after update from 43.2-2 to 43.2-4

[Alexandr Podgorniy]

Package: libmutter-11-0
Version: 43.2-4
Severity: normal
X-Debbugs-Cc: scaled at scaledteam.ru

Dear Maintainer, i used to capture my screen with ffmpeg kmsgrab feature, it
really simple and very effective. But after update from 43.2-2 to 43.2-4 it
captures very distorted images. My own programs for capturing based in same
principle stopped working too, for example, my fork of OBS Studio with this
feature. (https://github.com/scaledteam/obs-studio)

It appears in Gnome Wayland, but Gnome X11 works fine.

To test this, run this command:
sudo ffmpeg -framerate 30  -device /dev/dri/card0 -f kmsgrab -i - -vf
'hwmap=derive_device=vaapi,scale_vaapi=format=nv12' -c:v h264_vaapi output.mp4

This is zero-copy capture, which means very low CPU load and ability to capture
giant resolutions with almost 0% cpu usage.


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (500, 'testing'), (50, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-0-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_CPU_OUT_OF_SPEC, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libmutter-11-0 depends on:
ii  adwaita-icon-theme         43-1
ii  gsettings-desktop-schemas  43.0-1
ii  libatk1.0-0                2.46.0-4
ii  libc6                      2.36-7
ii  libcairo-gobject2          1.16.0-7
ii  libcairo2                  1.16.0-7
ii  libcanberra0               0.30-10
ii  libcolord2                 1.4.6-2.1
ii  libdrm2                    2.4.114-1
ii  libegl1                    1.5.0-1
ii  libfontconfig1             2.13.1-4.5
ii  libfribidi0                1.0.8-2.1
ii  libgbm1                    22.2.4-1
ii  libgdk-pixbuf-2.0-0        2.42.10+dfsg-1
ii  libgl1                     1.5.0-1
ii  libglib2.0-0               2.74.4-1
ii  libgnome-desktop-3-20      43-2
ii  libgraphene-1.0-0          1.10.8-1
ii  libgtk-3-0                 3.24.35-3
ii  libgudev-1.0-0             237-2
ii  libice6                    2:1.0.10-1
ii  libinput10                 1.22.0-1
ii  libjson-glib-1.0-0         1.6.6-1
ii  liblcms2-2                 2.13.1-1+b1
ii  libpango-1.0-0             1.50.10+ds-1
ii  libpangocairo-1.0-0        1.50.10+ds-1
ii  libpangoft2-1.0-0          1.50.10+ds-1
ii  libpipewire-0.3-0          0.3.63-1
ii  libsm6                     2:1.2.3-1
ii  libstartup-notification0   0.12-6+b1
ii  libsystemd0                252.4-1
ii  libudev1                   252.4-1
ii  libwacom9                  2.5.0-1
ii  libwayland-server0         1.21.0-1
ii  libx11-6                   2:1.8.3-3
ii  libx11-xcb1                2:1.8.3-3
ii  libxau6                    1:1.0.9-1
ii  libxcb-randr0              1.15-1
ii  libxcb-res0                1.15-1
ii  libxcb1                    1.15-1
ii  libxcomposite1             1:0.4.5-1
ii  libxcursor1                1:1.2.1-1
ii  libxdamage1                1:1.1.5-2
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  libxkbcommon-x11-0         1.4.1-1
ii  libxkbcommon0              1.4.1-1
ii  libxkbfile1                1:1.1.0-1
ii  libxrandr2                 2:1.5.2-2+b1
ii  libxtst6                   2:1.2.3-1.1
ii  mutter-common              43.2-4

libmutter-11-0 recommends no packages.

libmutter-11-0 suggests no packages.

Versions of packages libmutter-11-0 is related to:
ii  libegl-mesa0 [libegl-vendor]  22.2.4-1
ii  libgl1-mesa-dri               22.2.4-1
ii  libglx-mesa0 [libglx-vendor]  22.2.4-1

-- no debconf information