FYI, Ubuntu 12.10 has the same issue with my monitor + HDMI. The freezes seem to be about 100ms in duration, and occur regularly every 1s. It's incredibly irritating.
Output of vmstat: procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 0 13850796 84292 1289120 0 0 250 25 92 403 2 1 97 0 I installed perf, but I'm not exactly sure what to look for (nothing stuck out). Chris, can you let me know what else I can provide to be more helpful? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/964231 Title: System Stutter When HDMI Monitor Is Connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/964231/+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