Public bug reported: Since the advised upgrade Xorg has 15% CPU usage on idle, and is often much greater than that. . Update manager told me to upgrade to 9.04 from 8.10 (I think).
I'm using a Dell Inspiron 1525 and "sudo lspci|grep VGA" outputs: 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c) I have transparency effects turned on and I use XFCE. I suspect xserver-xorg-video-intel may be to blame somewhere here. I had to manually find the release notes, where I find this topic: http://www.ubuntu.com/getubuntu/releasenotes/904#Performance%20regressions%20on%20Intel%20graphics%20cards I can confirm the fix: Option "MigrationHeuristic" "greedy" On idle Xorg currently displays ~2% CPU. The update manager should CHECK to see if the model is properly supported before updating too early OR apply Option "MigrationHeuristic" "greedy" in xorg for this model, or some other fix To check for this in the upgrade, the upgrade script should look for "GM965/GL960" in "sudo lspci|grep VGA" and if it finds it, apply the greedy patch to Xorg.conf as specified in release notes. Please don't ship with performance regressions on currently selling major brand hardware! ** Affects: ubuntu Importance: Undecided Status: New ** Tags: 9.04 bad-upgrade high-cpu intel upgrade xorg ** Summary changed: - Xorg 15% CPU usage on idle with GM965/GL960 after I'm annoyed that my update manager performed upgrade to Jaunty Jackalope + Xorg 15% CPU usage on idle with GM965/GL960 after update manager requested upgrade to Jaunty Jackalope -- Xorg 15% CPU usage on idle with GM965/GL960 after update manager requested upgrade to Jaunty Jackalope https://bugs.launchpad.net/bugs/395677 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
