Public bug reported: I have been happily using 3.11.0-19 since upgrading to 14.04 LTS. Over the weekend I allowed the system to update to 3.13.0-24. While my laptop is undocked, the display works find (built in display). When I dock the laptop into the port-replicator which has 2 monitors attached via Display Port, the screen becomes severely distorted (very low resolution and many artifacts). The only way I could get the system working again was to pick the older 3.11.0-19 kernel from Grub. For this reason, this 'ubunut-bug' collected information about the good configuration. Due to the level of corruption I don't believe it would be possible to collect a report while running the broken kernel.
Please fix. This is a horrible regression. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8 ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5 Uname: Linux 3.11.0-19-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 CurrentDesktop: XFCE Date: Mon May 12 10:34:10 2014 InstallationDate: Installed on 2013-10-26 (197 days ago) InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to trusty on 2014-04-18 (24 days ago) ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug corruption trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1318714 Title: Display Port on Nouveau breaks with linux 3.13.0-24 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1318714/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs