Bad webcam video rendering when using XV acceleration on Skylake gpus.
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | |||
xserver-xorg-video-intel (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | |||
Vivid |
Fix Released
|
Medium
|
Robert Hooker | |||
xserver-xorg-video-intel-lts-vivid (Ubuntu) | ||||||
Trusty |
In Progress
|
Medium
|
Unassigned |
Bug Description
CPU: Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz
GPU: Intel Corporation Device [8086:1916] (rev 07)
Webcam: 0bda:57e3 Realtek Semiconductor Corp.
[Impact]
We noticed that webcam output on a wide range of skylake systems contained corruption during certification testing of OEM machines which uses a certain gstreamer pipeline. An example of the corruption is attached.
[Test Case]
1. Boot ubuntu 14.04.3 or 15.04 on a machine with a skylake intel GPU and a webcam
2. Login system and open a terminal.
4. Execute '$ gst-launch-0.10 v4l2src ! xvimagesink'
Expect result:
There should be no visual artifacts during video playing. The artifacts will look like the attached video and be very obvious in the unfixed package.
[Regression Potential]
Low, the fix is very minimal was included immediately after the 2.99.917 release was made. It consists of 2 parts, a small patch (http://
It has been tested on a large number of machines during certification, and also by me on sandybridge, ivybridge, broadwell and skylake machines.
Changed in xserver-xorg-video-intel (Ubuntu Trusty): | |
status: | New → Invalid |
Changed in xserver-xorg-video-intel (Ubuntu): | |
status: | New → Fix Released |
Changed in xserver-xorg-video-intel (Ubuntu Vivid): | |
status: | New → In Progress |
assignee: | nobody → Robert Hooker (sarvatt) |
Changed in xserver-xorg-video-intel-lts-vivid (Ubuntu Trusty): | |
assignee: | nobody → Robert Hooker (sarvatt) |
status: | New → In Progress |
Changed in xserver-xorg-video-intel-lts-vivid (Ubuntu Vivid): | |
status: | New → Invalid |
Changed in xserver-xorg-video-intel (Ubuntu): | |
importance: | Undecided → Medium |
Changed in xserver-xorg-video-intel (Ubuntu Trusty): | |
importance: | Undecided → Medium |
Changed in xserver-xorg-video-intel-lts-vivid (Ubuntu): | |
importance: | Undecided → Medium |
Changed in xserver-xorg-video-intel (Ubuntu Vivid): | |
importance: | Undecided → Medium |
Changed in xserver-xorg-video-intel-lts-vivid (Ubuntu Trusty): | |
importance: | Undecided → Medium |
Changed in xserver-xorg-video-intel-lts-vivid (Ubuntu Vivid): | |
importance: | Undecided → Medium |
Changed in hwe-next: | |
status: | New → Fix Released |
no longer affects: | xserver-xorg-video-intel-lts-vivid (Ubuntu) |
no longer affects: | xserver-xorg-video-intel-lts-vivid (Ubuntu Vivid) |
no longer affects: | xserver-xorg-video-intel (Ubuntu Trusty) |
Changed in xserver-xorg-video-intel-lts-vivid (Ubuntu Trusty): | |
assignee: | Robert Hooker (sarvatt) → nobody |
The attachment "xserver- xorg-video- intel_2. 99.917- 1~exp1ubuntu2. 3.debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.
[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]