I can indeed confirm that upgrading to AMD Catalyst 12.6 Beta fixed the problem.
I build the .deb package from the install file using the internal build process:
sh ./amd-driver-installer-8.98-x86.x86_64.run --buildpkg Ubuntu/precise sudo dpkg --install fglrx_8.980-0ubuntu1_amd64.deb sudo dpkg --install fglrx-amdcccle_8.980-0ubuntu1_amd64.deb
After restart, the problem no longer occurs.
I can indeed confirm that upgrading to AMD Catalyst 12.6 Beta fixed the problem.
I build the .deb package from the install file using the internal build process:
sh ./amd-driver- installer- 8.98-x86. x86_64. run --buildpkg Ubuntu/precise 980-0ubuntu1_ amd64.deb 8.980-0ubuntu1_ amd64.deb
sudo dpkg --install fglrx_8.
sudo dpkg --install fglrx-amdcccle_
After restart, the problem no longer occurs.