It seems we're loosely in a deadlock on this one...
The i965 VA driver is failing to load because it's using Xwayland.
Xwayland only supports DRI3, while VA-API only supports DRI2. VA-API
does support native Wayland, but that's not being tried by the video
player apps as first preference. You could call it a bug that the apps
choose X instead of Wayland, and that's easily fixable, but according to
the mpv developers people prefer X in the mpv case because a native
Wayland app has no titlebar or window decorations. But by defaulting to
X, it uses Xwayland which does not support the same DRI interface as VA-
API. Hence VA-API initialization fails.
So there are at least a few possible ways forward:
* Implement DRI3 support in libva (unlikely to happen soon); or
* Implement DRI2 support in Xwayland (unlikely to happen ever); or
* Modify each player app to prioritize checking for Wayland before checking
for X11 (rejected by mpv); or
* Modify each player app to try vaInitialize multiple times (different display
types) until one works.
** Also affects: libva (Ubuntu)
Importance: Undecided
Status: New
** Changed in: libva (Ubuntu)
Status: New => In Progress
** No longer affects: libva
** Bug watch added: github.com/01org/libva/issues #79
https://github.com/01org/libva/issues/79
** Also affects: libva via
https://github.com/01org/libva/issues/79
Importance: Unknown
Status: Unknown
** Summary changed:
- i965-va-driver fails to load in a Gnome Shell Wayland session
+ VA-API fails to initialize in a Gnome Shell Wayland session
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https://bugs.launchpad.net/bugs/1698287
Title:
VA-API fails to initialize in a Gnome Shell Wayland session
Status in Libva:
Unknown
Status in gstreamer-vaapi package in Ubuntu:
New
Status in intel-vaapi-driver package in Ubuntu:
Invalid
Status in libva package in Ubuntu:
In Progress
Status in mpv package in Ubuntu:
Triaged
Status in totem package in Ubuntu:
New
Bug description:
The Intel i965 VA-API driver works well in Xorg sessions (Unity7 and
Gnome Shell). But it refuses to load when in a Wayland session:
$ totem bbb_sunflower_1080p_60fps_normal.mp4
libva error: va_getDriverName() failed with unknown libva
error,driver_name=(null)
$ env LIBVA_DRIVER_NAME=i965 totem bbb_sunflower_1080p_60fps_normal.mp4
totem: intel_driver.c:112: intel_driver_init: Assertion
`VA_CHECK_DRM_AUTH_TYPE(ctx, VA_DRM_AUTH_DRI1) || VA_CHECK_DRM_AUTH_TYPE(ctx,
VA_DRM_AUTH_DRI2) || VA_CHECK_DRM_AUTH_TYPE(ctx, VA_DRM_AUTH_CUSTOM)' failed.
Aborted (core dumped)
$ gst-play-1.0 bbb_sunflower_1080p_60fps_normal.mp4
Press 'k' to see a list of keyboard shortcuts.
Now playing /home/dan/Videos/bbb_sunflower_1080p_60fps_normal.mp4
Redistribute latency...
Redistribute latency...
ERROR Internal error: could not render surface for
file:///home/dan/Videos/bbb_sunflower_1080p_60fps_normal.mp4
ERROR debug information: ../../../gst/vaapi/gstvaapisink.c(1482):
gst_vaapisink_show_frame_unlocked ():
/GstPlayBin:playbin/GstPlaySink:playsink/GstBin:vbin/GstVaapiSink:vaapisink0
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: i965-va-driver 1.8.1-1
ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15
Uname: Linux 4.10.0-22-generic x86_64
ApportVersion: 2.20.5-0ubuntu4
Architecture: amd64
Date: Fri Jun 16 13:40:38 2017
InstallationDate: Installed on 2017-05-03 (44 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170502)
SourcePackage: intel-vaapi-driver
UpgradeStatus: No upgrade log present (probably fresh install)
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