Did you install the AMD proprietary drivers for your graphic card ?
If so, did you install the ones from the repositories or the latest one from AMD's website ?
I'd recommend trying the ones from AMD's website and if you still have issues then try to completely remove proprietary drivers and see how it goes with the open source ones.
Did you install the AMD proprietary drivers for your graphic card ?
If so, did you install the ones from the repositories or the latest one from AMD's website ?
I'd recommend trying the ones from AMD's website and if you still have issues then try to completely remove proprietary drivers and see how it goes with the open source ones.