Display Port on Nouveau breaks with linux 3.13.0-24

Bug #1318714 reported by TragicWarrior
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Low
Unassigned

Bug Description

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)

Revision history for this message
TragicWarrior (bryan-christ) wrote :
Revision history for this message
penalvch (penalvch) wrote :

TragicWarrior, thank you for reporting this and helping make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1318714

affects: xorg (Ubuntu) → linux (Ubuntu)
Changed in linux (Ubuntu):
importance: Undecided → Low
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.