[HP EliteBook 8470p] Unstable with 15.10 kernels

[janl]

After upgrading my HP EliteBook 8470p to 15.10 it started freezing within 12 hours of booting and the screen started flickering when X did fade-out and fade-ins.

Booting the HP with the 15.04 kernel (3.19.0-31) makes it stable again.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7
Uname: Linux 3.19.0-31-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Nov 12 11:34:25 2015
InstallationDate: Installed on 2013-11-07 (734 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to wily on 2015-10-26 (16 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel Kraus (bovender)]

+1 on a ThinkPad T430s with Intel graphics.

Mostly random freezes and random crashes of Xorg. First I thought it was a problem introduced with upgrading (14.10 -> 15.04 -> 15.10), so I performed a clean install, to no avail. Have been reluctant to downgrade so far.

(Interestingly, I just now managed to crash the X server three times in a row by clicking on the 'Edit' button in the 'Shutter' screenshot application. Don't know if that is technically related.)

When I mentioned it on the [forums][1], there was one other user who had a similar problem, so that makes us 3.

[1]: http://ubuntuforums.org/showthread.php?t=2301373

[penalvch (penalvch)]

janl, thank you for reporting this and helping make Ubuntu better.

With just the HP laptop (not the SONY), could you please run the following command once from a terminal as it will automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1515551

Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Launchpad Janitor (janitor)]

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