** Description changed: Sync-to-vblank support is disabled by default in the nouveau driver. This makes the desktop tear badly, and look ugly, on nvidia systems. It's also inconsistent, as radeon and intel both have sync-to-vblank enabled by default. + WORKAROUND: /etc/X11/xorg.conf: Section "Device" - Identifier "My Graphics" - Option "GLXVBlank" "on" + Identifier "My Graphics" + Driver "nouveau" + Option "GLXVBlank" "on" EndSection + ORIGINAL DESCRIPTION: Quite simply because otherwise performance in the default unity/compiz session is awful. There is very visible tearing when moving windows, switching workspaces ect, ect. Can't see why you'd leave it up to the users to enable thru xorg.conf ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: libgl1-mesa-dri 8.0.3-0ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-2.2-generic 3.5.0-rc4 Uname: Linux 3.5.0-2-generic i686 ApportVersion: 2.2.5-0ubuntu1 Architecture: i386 Date: Fri Jun 29 00:27:49 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation G86 [GeForce 8400M GS] [10de:0427] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:0209] InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120627) MachineType: Dell Inc. XPS M1330 ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-2-generic root=UUID=4f62ae83-2284-48aa-8935-e1b260f3afcc ro quiet splash vt.handoff=7 SourcePackage: mesa UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: Section "Device" Identifier "My Graphics" Option "GLXVBlank" "on" EndSection dmi.bios.date: 12/26/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: XPS M1330 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu1 version.libdrm2: libdrm2 2.4.33-3 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.12.1.902-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~really6.14.4-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.19.0-1ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-1build1
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1019131 Title: vsync is disabled by default in nouveau To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1019131/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
