Using 10.10 here. I noticed this problem, and my only solution is to do sudo service gdm restart
I tried killing all my apps, deluged/Miro I tried setting compiz/metacity/kwin I tried using my nvidia settings to enable/disable the TV twinview (I use the TV to watch movies using SMplayer fullscreen) It doesn't touch the Xorg CPU usage. After a gdm restart, I get typically 5% cpu - right now watching a movie and working here on my LCD screen I'm seeing it rising slightly after ten minutes to about 7.5 and 8.5% - time seems to have more effect than anything else regardless of what I do. This is also unrelated to my browser (right now I'm using Chromium browser, but the same effect applies to a fresh Xorg session using only Midori or Epiphany). However totally convinced I have been, I disabled digital screenlet clock from the TV monitor - the only screenlet running - and it appears to have settled at less than 6% over the last two hours. How does a screenlet affect the X session? Why not all the time? Does anybody really understand this stuff? It's been an intermittent problem, so only time will tell if that was it. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. https://bugs.launchpad.net/bugs/294972 Title: MASTER: xorg high cpu usage, general system sluggishness _______________________________________________ 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