Personally, I had tried to install fglrx-updates by command line and afterwards compiz didn't load so when I logged in I had no unity bar or window borders. Turns out you need linux-headers-generic as well.
This is all you need to do:
Code:
sudo apt-get install linux-headers-generic fglrx-updates
If you've already installed some combination of the driver you can try installing linux-headers-generic and see if that fixes the issue. If not, uninstall everything like this:
Code:
sudo apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev*
And then run the command above, reboot, and it should work. Note that I tried restarting lightdm after installing the driver and it didn't work right, I had to do a full reboot for it to work.
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