native/gpu: Handle drmModeSetCrtc() failing gracefully

If drmModeSetCrtc() is called with no fb, mode or connectors for some
CRTC it may still fail, and we should handle that gracefully instead of
assuming it failed to set a non-disabled state.

Closes https://gitlab.gnome.org/GNOME/mutter/issues/70

(cherry picked from commit 6e953e2725d5d5b10d14c7bd479bd99f6853addc)

Bug-GNOME: https://gitlab.gnome.org/GNOME/mutter/issues/70
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1754949
Applied-Upstream: https://gitlab.gnome.org/GNOME/mutter/commit/44682a2cc555

Gbp-Pq: Name native-gpu-Handle-drmModeSetCrtc-failing-gracefully.patch

gpu-kms: Don't crash if drmModeGetResources returns NULL

DRM drivers can be opened by meta_launcher_open_restricted() even if they don't
implement modesetting. However, drmModeGetResources() will return NULL.

Check whether that happened in meta_gpu_kms_new() and return with an error
instead of crashing.

Fixes #223.

Applied-Upstream: https://gitlab.gnome.org/GNOME/mutter/commit/62660bbd15
Bug-GNOME: https://gitlab.gnome.org/GNOME/mutter/issues/223
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1767956

Gbp-Pq: Name gpu-kms-Don-t-crash-if-drmModeGetResources-returns-N.patch

mutter (3.28.3-2) unstable; urgency=medium

  * Team upload

  [ Iain Lane ]
  * debian/gbp.conf: Set the upstream branch to upstream/3.28.x, since we've
    branched for experimental now.

  [ Marco Trevisan (Treviño) ]
  * d/p/native-gpu-Handle-drmModeSetCrtc-failing-gracefully.patch:
    - Avoid crashing when warning about wrongly set crtc mode
      (LP: #1754949)
  * d/p/gpu-kms-Don-t-crash-if-drmModeGetResources-returns-N.patch:
    - Don't crash if drmModeGetResources returns NULL  (LP: #1767956)
  * d/p/window-wayland-Always-update-monitor-for-non-user-ops.patch:
    - Always update monitor in wayland, avoiding crash (LP: #1784398)
  * d/p/monitor-manager-Filter-out-low-screen-resolutions.patch:
    - Don't return screen resolutions that can't be applied (LP: #1772831)
  * d/p/window-Don-t-refuse-to-move-focus-to-the-grab-window.patch,
    d/p/window-Explicitly-exclude-unmanaging-window-from-focus-ag.patch:
    - Don't crash if a modal dialog closes while being dragged
      (LP: #1422253)
  * d/p/monitor-Use-current-monitor-mode-to-check-whether-active.patch:
    - Don't try to use an invalid monitor mode to figure out scaling
      (LP: #1723615)

  [ Simon McVittie ]
  * Sort patch series in upstream order, with patches applied upstream
    first
  * d/copyright: Remove obsolete FSF postal addresses
  * Standards-Version: 4.1.5 (no changes required)
  * Set Rules-Requires-Root to no
  * Update symbols file

[dgit import unpatched mutter 3.28.3-2]

Import mutter_3.28.3-2.debian.tar.xz

[dgit import tarball mutter 3.28.3-2 mutter_3.28.3-2.debian.tar.xz]

Import mutter_3.28.3.orig.tar.xz

[dgit import orig mutter_3.28.3.orig.tar.xz]