After update mesa to version 10.3.2-1 my screen began to show me that (see attachment) without any errors in logs. When the mouse movement artifacts randomly changed. I tried to install instead radeon fglrx driver, but installation was failed - kernel module not compiled because xserver 1.16.1 is not supported.
I had to go back all *mesa* ver. 10.3.2-1 packages to version 10.3.1-1 and my problem was solved.
My configuration: AMD Phenom II, chipset AMD 880G, 8Gb RAM, video AMD HD 7850, KDE.
