I was plagued by this problem too on my new HP laptop + found that reverting my NVIDIA accelerated graphics driver from version 177 to 173 helped.
Before I did this, about 75% of the times I logged in, Xorg would be taking 100% of cpu right away. This was temporarily solved by pressing ctrl-alt-F1 to switch to a text console, then going back to graphics by pressing alt-F7. However, in a few moments, Xorg went back to 100% cpu. Since I switched to version 173, I still occasionally get Xorg taking 100% when I log in, but much less frequently, and when I do, the ctrl- alt-F1/alt-F7 trick fixes it permanently. I'm too scared to try switching back to version 177 to confirm that this was causing the problem. I haven't noticed any disadvantages to version 173. Laptop: HP HDX Premium Series Graphics card: NVIDIA GeForce 9600M GT Hope this helps. -- Xorg take 100% cpu ubuntu intrepid https://bugs.launchpad.net/bugs/296732 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs