Wayland GL apps appear corrupt on Raspberry Pi 4B (v3d driver)

Actually weston works so maybe this is just mutter.

Fix proposed: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1798

The fix is now coming in https://launchpad.net/ubuntu/+source/mutter/3.38.4-1ubuntu1 but note you will also need to do:

  gsettings set org.gnome.mutter experimental-features "['kms-modifiers']"

^^^
That should be done automatically in some future release after https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1792

This bug was fixed in the package mutter - 3.38.4-1ubuntu1

---------------
mutter (3.38.4-1ubuntu1) hirsute; urgency=medium

  * Merge with debian, containing new upstream release.
  * debian/tests: Adapt autopkgtest name and linked library to current soname
  * debian/tests/control: Update references to libmutter-7-dev
  * debian/patches: Remove Input Thread backport patches.
    It has been fun, but we decided to revert this, so here it is.
    (LP: #1918874, LP: #1919310)
  * debian/control: Set breaks on gnome-shell 3.38.4.
    That's the first version on which we'll remove the input thread patches
  * debian/libmutter-7-0.symbols: Revert symbol changes due to input thread
  * debian/patches: Add support for ABFR2101010 in v3d used by Raspberry Pi 4
    (LP: #1896171)
  * debian/patches: Handle NVIDIA's zero presentation times (LP: #1880086)
  * debian/patches: Properly handle configuration events on windows
    (LP: #191793)
  * Remaining changes with debian:
    - debian/gbp.conf: update upstream branch to point to ubuntu/master
    - debian/patches/x11-Add-support-for-fractional-scaling-using-Randr.patch:
      + X11: Add support for fractional scaling using Randr

mutter (3.38.4-1) unstable; urgency=medium

  * Team upload
  * New upstream release
    - Fix Wayland spec compliance when reordering subsurfaces.
      This is likely to be required by future Firefox versions in native
      Wayland mode.
    - Many other fixes that we already had via debian/patches
  * Drop most patches, included in the new upstream release

mutter (3.38.3-5) unstable; urgency=medium

  * Team upload

  [ Marco Trevisan (Treviño) ]
  * debian/patches: Include a missing commit from upstream gnome-3-38
    branch to fix X11 UI stutters

mutter (3.38.3-4) unstable; urgency=medium

  * Team upload

  [ Marco Trevisan (Treviño) ]
  * debian/patches: cherry-pick more upstream gnome-3-38 fixes
    - Correctly restore focus to applications that use globally active
      input handling, such as AWT/Swing Java apps
    - Disable double buffered shadow buffering, which was intended to
      improve performance with e.g. llvmpipe but currently makes it worse
  * debian/tests: Adapt autopkgtest name and linked library to current soname
  * debian/tests/control: Update references to libmutter-7-dev

  [ Simon McVittie ]
  * d/patches: Update to commit 3.38.3-26-g30c542ddc from gnome-3-38 branch
    - Fix X11 frame timing getting stuck if frames are skipped, resulting
      in X11 applications not always being redrawn when they should be
    - Fix a crash when clicking below titlebar with broken GTK themes

 -- Marco Trevisan (Treviño) <email address hidden> Fri, 26 Mar 2021 07:17:54 +0100

Reopened (like the upstream bug) to avoid confusion about the fix not being enabled by default. You just need to run:

  gsettings set org.gnome.mutter experimental-features "['kms-modifiers']"

But we can close this again after that's been done automatically in a future release.

Second fix proposed in: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1817

Also proposed to Ubuntu in: https://salsa.debian.org/gnome-team/mutter/-/merge_requests/72

This bug was fixed in the package mutter - 3.38.4-1ubuntu2

---------------
mutter (3.38.4-1ubuntu2) hirsute; urgency=medium

  [ Daniel van Vugt ]
  * Revert "debian/patches: Properly handle configuration events on windows"
    to fix a regression making some windows to move on resize (LP: #1922034).
  * Add 61-mutter.rules-Enable-KMS-modifiers-for-Raspberry-P.patch.
    To enable KMS modifiers on Raspberry Pi, which means to enable the
    first fix in wayland-dma-buf-Add-support-for-DRM_FORMAT_ABGR2101010.patch
    (LP: #1896171)

  [ Marco Trevisan (Treviño) ]
  * debian/patches: Backport workspace fixes from upstream gnome-3-38 branch
  * debian/patches: Use Xwayland pkg-config if available
  * debian/patches: Use -listenfd to invoke XWayland if available (LP: #1922539)

 -- Marco Trevisan (Treviño) <email address hidden> Thu, 15 Apr 2021 06:28:51 +0200