If you're desperate to get stability back (like I was,) try installing the 295.53-0ubuntu1~precise~xup1 series drivers from https://launchpad.net/~ubuntu-x-swat/+archive/x-updates . I've only had them running for a couple of days, and only watched 2-3 hours of HD video since then, but so far no crashes.
What perplexes me is that I have two virtually identical HTPC machines in the house, and only one of them hit this bug. Same mobo, same proc, same ram, same video card, same ubuntu. One plays primarily through XBMC with VDPAU, other through mplayer+VDPAU. mplayer+VDPAU box crashed all the time until 295.53 drivers installed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1005028 Title: nvidia: Xorg hangs at 100% CPU when playing video: "fallen off the bus" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1005028/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs