[BSW] Backport fixes to solve promotion video playback issue

The attachment "sna-mark-the-chv-vsync-method-as-unknown.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

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Hello Tsung-Han, or anyone else affected,

Accepted xserver-xorg-video-intel into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/xserver-xorg-video-intel/2:2.99.910-0ubuntu1.6 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Tested this x-x-v-intel 2:2.99.910-0ubuntu1.6 in my problematic Braswelll,
and it does fix the promotion video playback issue.
Also tested with other functions like rotation and external monitor,
they all work well.
Thanks for the support.

This bug was fixed in the package xserver-xorg-video-intel - 2:2.99.910-0ubuntu1.6

---------------
xserver-xorg-video-intel (2:2.99.910-0ubuntu1.6) trusty-proposed; urgency=medium

  * sna-mark-the-chv-vsync-method-as-unknown.diff: Fix video playback
    on CHV. (LP: #1445221)

xserver-xorg-video-intel (2:2.99.910-0ubuntu1.5) trusty-proposed; urgency=medium

  * bdw-annotate-more-64bit-pointer-locations.diff
    bdw-clamp-urb-allocations-for-gt3.diff:
    Fix BDW GT3. (LP: #1444436)
 -- Timo Aaltonen <email address hidden> Fri, 17 Apr 2015 08:00:47 +0300

The verification of the Stable Release Update for xserver-xorg-video-intel has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.