weird graphical glitches in 14.10

[crysman]

After performing all upgrades and installing some extra packages (gimp, unattended updates, libreoffice, vino, openssh) and purging some other (gnumeric, abiword) on fresh install I've started suffering strange graphical issues (glitches) - see the attached screenshots.

Tomorrow I will try to boot once again from USB the live session to verify it's not hardware-related.

As for now... anybody experiencing this?

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7
Uname: Linux 3.16.0-33-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue Apr 7 18:48:55 2015
InstallationDate: Installed on 2015-04-02 (5 days ago)
InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

[crysman (crysman)]

Hmm... when I removed 2 additional DDR RAM modules (out of 4), being said, leaving just the original two, glitches do not appear.

Interresting on this is that I let memtest+ running overnight with all 4 modules for 17 hours and... no error at all.

Weird. Need some more tests.

[penalvch (penalvch)]

crysman, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1441260

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

[crysman (crysman)]

I would like to post it, but the computer is now located outside of my office and I've not yet managed to connect to it remotely due to missing UTP cable there... When I manage to connect to it, I will execute it and post here. Thanks for involvement.

[crysman (crysman)]

I suggest closing this, because the PC is out of my physical reach now.

If you really want to have (need) that debug info, I can do it for you, otherwise let's close it... Thanks!

[penalvch (penalvch)]

crysman, as 14.10 is going EoL in a few days, let this be marked Invalid. However, if this is reproducible in a supported release, please file a new report via a terminal:
ubuntu-bug xorg

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