I have an Ubuntu 12.04 installed with a ATI Radeon HD 6550D. The problem is, that sometimes, there are random white pixels at the screen, which appears especially on dark areas of the screen. This is really annoying during work, and even more when watching movies (XBMC frodo is installed on that machine, but the pixels also appears on the desktop).
I thought, maybe it's sth with the graphic card driver. So I tried some ATI drivers and some other (weird) stuff, but the problem still exists.
Here are some screenshots:
Hope, somebody can help me. thx!