Hi,
I'm using a Dell M4600 with an IPS screen with an NVIDIA Quadro 2000M graphics card. I am currently using Ubuntu 12.04 and have not used older versions of Ubuntu on this laptop.
The problem is that the screen randomly flickers and the windows leave "ghosts" or there is image retention of the windows after they have been closed or minimized, i.e., there are transparent windows on my wallpaper after I close the window (this happens regardless if the screen is flickering or not). This happens randomly and I do not know the cause of the issue (I'm guessing its an nvidia driver issue). An example is when I'm browsing the web and I'm scrolling down the webpage and it starts flickering. I've seen posts about the screen flickering but nothing about the window images being retained. The image retention stays for a while but slowly fades over time. However, when I restart the computer the images look like they're "burned" into the screen.
I would really like to solve this issue. Please let me know what additional information you would need. I've tried using the x86 and x64 versions and they both end up with the same issue.
I appreciate the help!
pasted from : https://answers.launchpad.net/ubuntu/+source/xserver-xorg-video-nv/+question/206455