** Description changed: [Problem] Running compiz with dual-head enabled on certain graphics cards does not work. Compiz either errors out and refuses to run, or else fails with a black screen. Compiz displays the desktop as a 3D texture. The maximum texture size is determined by the hardware capabilities of the particular graphics card. Some older or lower end cards have a limitation of 2048x2048, which means if you set up a side-by-side arrangement, the sum of the horizontal resolutions could exceed 2048. Some example max texture limits: Radeon Xpress 200M: 2048x2048 Radeon X1600/X1900: 4096 x 4096 Radeon HD 2400: 8192 x 8192 Radeon HD 2600/4670/4850/4870: 8192 x 8192 GeForce 7300/7600: 4096 x 4096 Quadro FX 4500: 4096 x 4096 GeForce 8600/880/9400/9600/120/130/285: 8192 x 8192 Quadro FX 4800: 8192 x 8192 + i945: 2048 x 2048 GMA 950: 2048 x 2048 GMA X3100: 2048 x 2048 [Workarounds] A. If monitors are rectangular, arrange them above/below instead of left/right B. Turn off compiz [Original Report] I'm using a Lenovo S10-2 netbook (Intel GMA950 chipset, 1024x600 internal resolution). When I connect a VGA display (Samsung SyncMaster 757NF) and set it to span, both screens go black with only the mouse cursor visible. The secondary display works fine if I set it to 832x624 or lower (but this is not really an acceptable option with the size of the display, etc) Using Ubuntu lucid with all updates. This bug was present in karmic as well. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: xorg 1:7.5+3ubuntu1 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1 Uname: Linux 2.6.32-19-generic i686 NonfreeKernelModules: wl Architecture: i386 Date: Mon Apr 5 12:44:50 2010 DkmsStatus: bcmwl, 5.60.48.36+bdcom, 2.6.32-19-generic, i686: installed bcmwl, 5.60.48.36+bdcom, 2.6.31-20-generic, i686: installed InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) MachineType: LENOVO 20027 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=8776efb2-cf16-456a-850a-5ade325b538a ro quiet splash ProcEnviron: LANG=en_US.utf8 SHELL=/bin/bash SourcePackage: xorg dmi.bios.date: 10/02/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 1ACN21WW(V1.12) dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mariana2 dmi.board.vendor: LENOVO dmi.board.version: Base Board Version dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnLENOVO:bvr1ACN21WW(V1.12):bd10/02/2009:svnLENOVO:pn20027:pvrLenovoIdeaPadS10-2:rvnLENOVO:rnMariana2:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.name: 20027 dmi.product.version: Lenovo IdeaPad S10-2 dmi.sys.vendor: LENOVO system: distro: Ubuntu codename: lucid architecture: i686 kernel: 2.6.32-19-generic
-- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/555641 Title: MASTER: max texture size prevents compiz from running _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp