Remember, the one in the repo IS the ATI driver. The development version 8.960. The difference is that a MOTU has prepackaged it as needed so that it installs correctly.
Uninstall and blacklist the Gallium driver. Purge the fglrx driver if you haven't done so already.
Don't install the driver via the additional drivers method, since that has caused some users difficulty.
Use the terminal:
Some people say to use the fglrx-updates and fglrx-amdcccle-updates versions. This has led to the inability to use the Catalyst Control Center on the six machines I have done that on.
sudo apt-get install fglrx fglrx-amdcccle
Then BEFORE you shut down, create an initial xorg.conf, since one does not exist any longer in Ubuntu:
sudo aticonfig --initial
After that, to get hardware acceleration via VA-API and the xvba backend:
To test that hardware acceleration is working:
sudo apt-get install vainfo xvba-va-driver libva-egl1 libva-glx1
You should get something like this:
Then use the Catalyst Control Center to make your desired adjustments to your video.
libva: VA-API version 0.32.0
Xlib: extension "XFree86-DRI" missing on display ":0".
libva: va_getDriverName() returns 0
libva: Trying to open /usr/lib/x86_64-linux-gnu/dri/fglrx_drv_video.so
libva: va_openDriver() returns 0
vainfo: VA-API version: 0.32 (libva 1.0.15)
vainfo: Driver version: Splitted-Desktop Systems XvBA backend for VA-API - 0.7.8
vainfo: Supported profile and entrypoints
VAProfileH264High : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
Some users have reported that Catalyst won't open from the menu. If it won't, just open it from the terminal: