I have the same problem with an HD 6800, using either fglrx or fglrx-updates. I also tried installing the latest beta driver by following the instructions here: http://askubuntu.com/questions/124292/what-is-the-correct-way-to-install-ati-catalyst-video-drivers-fglrx. But that gave identical results.
I have the same problem with an HD 6800, using either fglrx or fglrx-updates. I also tried installing the latest beta driver by following the instructions here: http:// askubuntu. com/questions/ 124292/ what-is- the-correct- way-to- install- ati-catalyst- video-drivers- fglrx. But that gave identical results.