Screen disappear and show chunks from memory

[Jakub T. Jankiewicz]

Don't know what's happening and what is responsible. I've installed Xubuntu 14.04 32bit. I'm working on 4 desktops (2 of them have Chromium with few Thunar and gedit and the other 2 have full screen emacs) and sometime when I do something in Chronium everything disappear and some part of the screen show current desktop and some show youtube video I was watching in the morning.

I have ATI Radeon based laptop, default installation not properitary drivers (when I search for them I got message that it didn't found any).

I read that my video card is supported by default drivers. lspci show:

01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880M [Mobility Radeon HD 4225/4250]

For me it look like corrupted video memory that show different data (saved when I watch youtube). Maybe it's drivers fault. I'm able to fix the issue for a while when I click show desktop icon. Don't know what's triggering this, sometime it look like everything is working fine.

Before 14.04 I had 13.04 64bit version and everything was working fine, didn't have enough space to upgrade. But back then I had ATI catalysis drivers.

[Jakub T. Jankiewicz (jcubic)]

It work when I remove compositions (I dind't use them on 13.04). Maybe it's a bug in compositions.

Also get this when I run gimp (but in random places, like when I left click in layer or change curve points).

[penalvch (penalvch)]

Jakub Jankiewicz, 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 -p xorg 1333676

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

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. 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.]