I get this bug with Mutter and Compiz when I try to use a dual monitor setup for a combined resolution of 3200x2000.
1920x1200 - Dell 24" 1280x 800 - Laptop 15' ====================== 3200x2000 - Total -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/581233 Title: Radeon driver "No buffer for z buffer" error Status in X.org XServer - ATI gfx chipset driver: Won't Fix Status in “xserver-xorg-video-ati” package in Ubuntu: Incomplete Bug description: Binary package hint: xorg X-Plane Demo fails to start with the following error: drmRadeonCmdBuffer: -22. Kernel failed to parse or rejected command stream. See dmesg for more info. Corresponding `dmesg' snippet is as follows: [53540.965939] [drm:r100_cs_track_check] *ERROR* [drm] No buffer for z buffer ! [53540.965945] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream ! The free installer is available through the following address: http://dev.x-plane.com/update/installers9/X-PlaneDemoInstallerLinux.zip The `radeon' driver is in use. The xorg.conf is not used in my system. The video card is ATI Mobility Radeon X2500 aka X1600. Latest updates for Lucid are installed. --- Architecture: amd64 DistroRelease: Ubuntu 10.04 DkmsStatus: Error: [Errno 2] No such file or directory MachineType: ASUSTeK Computer Inc. F3Se Package: xserver-xorg-video-ati 1:6.13.0-1ubuntu5 PackageArchitecture: amd64 ProcCmdLine: root=UUID=973084d5-6b81-4ea8-883a-8c71ba195dec quiet ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 Tags: lucid lucid Uname: Linux 2.6.32-22-generic x86_64 UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev sbuild scanner video dmi.bios.date: 07/31/2007 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 206 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: F3Se dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr206:bd07/31/2007:svnASUSTeKComputerInc.:pnF3Se:pvr1.0:rvnASUSTeKComputerInc.:rnF3Se:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: F3Se dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-22-generic To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/581233/+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