X is fine. It is OpenGL that is slow. Solution stop using an OpenGL compositor that triggers software fallbacks in its most frequent operations. Compare with xfce4 for example.
-- 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/1267384 Title: 8086:29b2 [HP Compaq dc7800 Convertible Minitower PC] 82Q35 graphics acceleration performance worse than it could be Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete Bug description: Summary: X performance is very bad on my HP Compaq dc7800p desktop computer. For example moving windows is jerky and glxgears in full screen only achieve 15 fps. The problem exists at least since 11.10. The problem still exists in 14.04 daily-live 2014-01-08. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu7 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.12.7-0ubuntu6 Architecture: amd64 CasperVersion: 1.336ubuntu1 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Thu Jan 9 08:51:29 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 82Q35 Express Integrated Graphics Controller [8086:29b2] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:2819] LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64+mac (20140108) MachineType: Hewlett-Packard HP Compaq dc7800p Convertible Minitower ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/18/2008 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786F1 v01.24 dmi.board.asset.tag: CZC8163N0C dmi.board.name: 0AACh dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: CZC8163N0C dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786F1v01.24:bd03/18/2008:svnHewlett-Packard:pnHPCompaqdc7800pConvertibleMinitower:pvr:rvnHewlett-Packard:rn0AACh:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP Compaq dc7800p Convertible Minitower dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.50-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.907-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1 xserver.bootTime: Thu Jan 9 08:51:02 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 26507 vendor NEC xserver.version: 2:1.14.5-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1267384/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
