Public bug reported: Binary package hint: xorg
After upgrading from 10.10 Maverick to 11.04 Natty I found that my dual- head display configuration on 10.10 no longer worked properly on 11.04. My desired set-up is to have two 1440x900 monitors set up side-by-side and the desktop stretched across the both of them. It took me some time to figure out the right configuration on 10.10, but I got it to work so I was less than enthused about it not working on 11.04. I documented a question on this issue here: https://answers.launchpad.net/ubuntu/+question/157414/+index I have attached a screenshot of my side-by-side configuration - as is clear the larger portion of the display is not shown right. After some digging, I found that a "above-and-below" configuration did work without the presentation being garbled. I'll try to attach a screenshot of that situation as well (after I've submitted the bug as it would appear it's not possible to attach multiple files??) Then, at the end of the day (literally) I stumbled upon a reference to issues with compiz - so I decided to try and log onto Ubuntu using "Ubuntu Classic (No Effects)". If I understand correctly, this option will force the system to run Metacity (??) window manager. After I did this, the side-by-side configuration worked without garbling. I therefore have a perfectly acceptable work-around for this problem (i.e. don't use compiz), and I've not lost anything in my transition from 10.10 to 11.04 (other than a days worth of digging to find the work-around). However I felt that it is probably appropriate to open a bug on this. As i indicated above, the problem went away once i stopped using compiz - so I think that's where the problem is but I've not been able to ascertain that (in other words the problem may be lower down somewhere). ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: xorg 1:7.6+4ubuntu3 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic i686 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell] CompositorRunning: compiz DRM.card0.VGA.1: status: connected enabled: enabled dpms: On modes: 1440x900 1280x1024 1280x1024 1440x900 1280x960 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400 edid-base64: AP///////wAWCQYZtQIAACYRAQNoKRp4KoX1plhHmSQSUFS/74CBgHFPgUCVD5UAAQEBAQEBmimg0FGEIjBQmDYAmgERAAAcAAAA/wBLMTY3OUNBMDAwNjkzAAAA/QAyTB5TDgAKICAgICAgAAAA/ABIMTlXCiAgICAgICAgAH4= Date: Sat May 14 12:50:36 2011 DistUpgraded: Log time: 2011-05-11 19:19:10.034707 DistroCodename: natty DistroVariant: ubuntu GraphicsCard: ATI Technologies Inc RV280 [Radeon 9200] [1002:5961] (rev 01) (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited Sapphire Radeon 9200 [174b:7c13] Subsystem: PC Partner Limited Sapphire Radeon 9200 [174b:7c12] InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) MachineType: ASUSTeK Computer INC. A7N8X-X ProcEnviron: LANGUAGE=en_US:en LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=018f5979-3444-4290-8b62-a02af3685786 ro quiet splash radeon.modeset=1 vt.handoff=7 Renderer: Unknown SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to natty on 2011-05-12 (2 days ago) dmi.bios.date: 08/19/2003 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: ASUS A7N8X-X ACPI BIOS Rev 1006 dmi.board.name: A7N8X-X dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: REV 2.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufactture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSA7N8X-XACPIBIOSRev1006:bd08/19/2003:svnASUSTeKComputerINC.:pnA7N8X-X:pvrREV2.xx:rvnASUSTeKComputerINC.:rnA7N8X-X:rvrREV2.xx:cvnChassisManufactture:ct3:cvrChassisVersion: dmi.product.name: A7N8X-X dmi.product.version: REV 2.xx dmi.sys.vendor: ASUSTeK Computer INC. version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2 version.libdrm2: libdrm2 2.4.23-1ubuntu6 version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2 version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug compiz-0.9 corruption i386 natty regression-update ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/782726 Title: Dual-Head Configuration does not work properly with Compiz _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
