It would be easier to reproduce on a bare X. If you do from a vt:
sudo service ligthdm stop sudo Xorg -ac -noreset & sleep 3; DISPLAY=:0 xterm then launch glxgears from the xterm, does it show the behaviour we need to fix? i.e. runs at below refresh rate unless there is another source of interrupts (e.g. wiggling the mouse)? If you can reproduce that, we can begin to test the patches. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1087582 Title: [gen3] Bad GPU performance whilst CPU is in deep sleep Status in X.org xf86-video-intel: Incomplete Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete Bug description: I have an Acer AOD250(KAV60) netbook. On Ubuntu 12.10 with glxgears I get 50-60 fps, while on Lubuntu I get half that and sometimes worse. The odd thing about this is that when I start moving my mouse around it straightens up and goes back to roughly 55-60 fps, and once I stop moving the mouse, the performance drops again. I know the chipset and GPU isn't the best out there, but it shouldn't be acting like this(before, I was able to use Celestia with ease but now I get below 5 fps). Latest available BIOS(v1.29) Intel Atom N270 1.6GHz(1 core, 2 threads) 1024RAM Intel 945GMA(8MB VRAM from BIOS) Tested glxgears from mesa-utils "8.0.1+git20110129+d8f7d6b-0ubuntu2" ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xserver-xorg-video-intel 2:2.20.9-0ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic i686 ApportVersion: 2.6.1-0ubuntu6 Architecture: i386 Date: Fri Dec 7 02:37:04 2012 InstallationDate: Installed on 2012-12-07 (0 days ago) InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.1) MarkForUpload: True SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1087582/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
