Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I have recently started with installing ubuntu 12.10 (x64) next to my windows 8 (x64) install. But since installing the amd proprietary drivers I got weird black horizontal lines in top of the screen. See the 11sec video I made with my phone to know exactly what I mean: http://youtu.be/OULpUYKPjj0

I had to install the proprietary drivers because with the opensource drivers I couldent login after first restart from fresh installation. I only got a black screen and a mouse.

This are my specs: Gigabyte GA-Z68X-UD3H-B3 (rev. 1.3) AMD radeon hd 6950 Dell UltraSharp U2312HM (connected with DVI)

I currently run the latest beta drivers from amd, but with the stable I had the same problem..

The strange thing is when I boot the computer, I get the black lines. But I found out that when I log out, and log back in, the black lines are gone! This however is not really an ideal situation.

How can I fix this problem to completely get rid of these black lines?

share|improve this question
    
I got the same issue, it doesn't occur every time, haven't find out what causes it yet. I think it is simply bug in the drivers and there won't be a simple solution. –  tikend Feb 15 '13 at 12:40
    
It looks similar when I have installed "Pardus 2011" on my Machine (Now using Fedora 17). This is very strange. I think it is a driver issue. –  Curious Apprentice Feb 15 '13 at 12:53
add comment

1 Answer 1

Turning on "Tear Free Desktop" (Catalyst Control Center -> Display Options -> Tear Free) seems to make the dashes less frequent.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.