Switching to the Guest session results in a black screen

[Alberto Milone]

SRU Request:

Running the proprietary nvidia drivers in an Optimus config works (Intel+NVIDIA), but switching to the guest session results in a black screen.

[Impact]
 * Causes a black screen when switching to the guest session.

[Test Case]
 * Run xrandr --output SOMEOUTPUT --rotation left
    - Expected: Screen should rotate, or the call should fail.
    - Bad behavior: Succeeds, but causes a black screen.

[Test Case]
 * Boot the system
 * Switch to guest session from top menu
     - Expected: Switches to the guest session without problems.
     - Actual results: The screen is black, only the cursor is visible in the upper left corner of the screen.

[Regression Potential]
 * Low, as we already use the patch in Trusty and Utopic.

[Other Info]
 * N/A

[Alberto Milone (albertomilone)]

Please accept xorg-server-lts-saucy (2:1.14.6-0ubuntu1~precise2) into precise-proposed

[Brian Murray (brian-murray)]

Hello Alberto, or anyone else affected,

Accepted xorg-server-lts-saucy into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/xorg-server-lts-saucy/2:1.14.6-0ubuntu1~precise2 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!

[Jerry Kao (jerry.kao)]

After update precise-proposed package on Kowalski 4, the prime version is still 0.5~hybrid0.0.2stella3.

   - switch to Nvidia GPU : pass
   - resolution : fail, black screen in some resolution
   - rotation : fail, can not rotate. just one option "normal"
   - guest session : pass, but can not adjust brightness

The behaviour is similar to prime version 0.0.2stella1285062

[Jerry Kao (jerry.kao)]

For this bug, can switch to guest session without problem.
Add tag verificatoin-done.

[Launchpad Janitor (janitor)]

This bug was fixed in the package xorg-server-lts-saucy - 2:1.14.6-0ubuntu1~precise2

---------------
xorg-server-lts-saucy (2:1.14.6-0ubuntu1~precise2) precise-proposed; urgency=medium

   * Revive the old drm_device_keep_trying.patch (LP: #1322212).
     [ Maarten Lankhorst ]
     - Remove the call to get_drm_info fixes switching to guest sessions.
     [ Alberto Milone ]
     - Backport and fix the patch from Utopic.

xorg-server-lts-saucy (2:1.14.6-0ubuntu1~precise1) precise-proposed; urgency=low

  * Copy SRU back to precise.

xorg-server (2:1.14.6-0ubuntu1) saucy-proposed; urgency=medium

  * New upstream release (MRE).
  * Disable support for rotations and transforms
    on gpu screens for now. (LP: #1308515)
  * Only set RR caps that are appropriate to main/gpu screen. (LP: #1277014)
  * Fix crash in RRCrtcDetachScanoutPixmap. (LP: #1280743)
 -- Alberto Milone <email address hidden> Thu, 22 May 2014 16:53:47 +0200

[Scott Kitterman (kitterman)]

The verification of the Stable Release Update for xorg-server-lts-saucy 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.

[Chris Halse Rogers (raof)]

Hello Alberto, or anyone else affected,

Accepted xorg-server into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/xorg-server/2:1.15.1-0ubuntu2.1 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!

[Alberto Milone (albertomilone)]

I can confirm that the new xserver in trusty-proposed solves the problem.

[Launchpad Janitor (janitor)]

This bug was fixed in the package xorg-server - 2:1.15.1-0ubuntu2.1

---------------
xorg-server (2:1.15.1-0ubuntu2.1) trusty-proposed; urgency=medium

  * Copy utopic package back to trusty.
    - Fix ppc64el byte order. (LP: #1333422)
      + xi-dont-copy-too-much.patch
    - Fix valgrind issue with xi copying too much.
      + xi-dont-copy-too-much.patch
    - Fix crash related to suspend/shutdown. (LP: #1208473)
      + mi-dont-process-disabled.patch
    - Fix touch event history overflow.
      + xi2-resize-touch.patch
    - Fix switching to guest sessions. (LP: #1322212)
      + Revive drm_device_keep_trying.patch
 -- Maarten Lankhorst <email address hidden> Wed, 02 Jul 2014 12:37:25 +0200