Have been reminded of this bug, and thought I'd post a follow-up on my own experiences.
I noticed that my desktop would run smoothly at first, then once I had a few windows open, it went slow. I used the "nvidia-smi" utility to monitor the memory usage on the GPU, and noticed that as I opened more windows, the memory usage would reach 90-95%. Once it reached that level, the desktop became very slow. If I closed windows until the memory usage dropped before 90%, everything sped up again. My solution was to purchase another video card. The old one had 256 MB of video RAM, the new one has 1024, and thus I don't reach that troublesome state any more. People with laptops may not be able to apply this solution. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/877438 Title: [8xxx] Unity/compiz has sluggish performance on dual-head with nvidia driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/877438/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
