I have personally observed this bug on Fedora 16, Fedora 17 and openSUSE 12.1, so it would appear to be an upstream Xorg bug, not a specific Ubuntu bug.
I can live very well with the circumvention described in Comment #23, but any- one who has a strong desire for this bug to be fixed might like to open a bug directly against Xorg itself, presumably on https://bugs.freedesktop.org/ -- 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/680614 Title: Position of second monitor wrong in dual monitor setup if first monitor is 1366x768 Status in “xserver-xorg-video-ati” package in Ubuntu: Confirmed Bug description: Binary package hint: xorg I'm using a two-monitor setup with an ati graphics card (Mobility Radeon HD 4300) on my laptop(lenovo u450p). The Laptop screen has a hardware resolution of 1366x768, the external monitor a hardware resolution of 1920x1080. If I set up the second monitor using xrandr --output HDMI-0 --off xrandr --output LVDS --auto xrandr --output HDMI-0 --auto --right-of LVDS (or the kde gui, the effects are equal) I expect 1) the left 1366x768 area to be on the laptop screen, and 2) the right 1920x768 area to be on the big monitor. But I observe: 1) happens as expected 2) happens almost. instead, the 2 rightmost pixels on the laptop monitor are repeated on the left border of the big monitor(filled with black to the bottom), in turn the two rightmost columns of the virtual display area are not visible on any monitor at all. If I switch the laptop monitor resolution to 1280x720, this effect does not occur, and - except for the then blurred laptop screen - everything works as expected. A screenshot shows the whole virtual desktop correctly. Ubuntu version: 10.10 (maverick) graphics card: 01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series] xorg version: 1:7.5+6ubuntu3 I'm using the 'radeon' display driver, as detected by default. fglrx is not installed. using kde 4.5.3 ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: xorg 1:7.5+6ubuntu3 ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 Architecture: amd64 DRM.card0.HDMI_Type_A.1: status: connected enabled: enabled dpms: On modes: 1920x1080 1920x1080 1600x1200 1680x1050 1400x1050 1280x1024 1280x1024 1440x900 1280x960 1152x864 1280x720 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 720x480 640x480 640x480 640x480 640x480 720x400 edid-base64: AP///////wAEafokAQEBARAUAQOANB14Lu7VpVVImyYSUFS/74DRwLMAqUCVAJBAgYCBQHFPAjqAGHE4LUBYLEUACSUhAAAeAAAA/wBBNExNSVowNzIyMDcKAAAA/QAySx5TEwAKICAgICAgAAAA/ABBU1VTIFZIMjQyCiAgAW0CAyXxUpAFBAMCBwYPDh8UHh0TEhEWASMJfweDAQAAZQMMABAAAjqAGHE4LUBYLEUACSUhAAAeAR2AGHEcFiBYLCUACSUhAACeAR0AclHQHiBuKFUACSUhAAAeAjqA0HI4LUAQLEWACSUhAAAejArQiiDgLRAQPpYACSUhAAAYVw== DRM.card0.LVDS.1: status: connected enabled: enabled dpms: On modes: 1366x768 1366x768 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480 edid-base64: AP///////wAGrzwiAAAAAAATAQOAHxF4Cpf1m1lUjCUiUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWRlAAIzAmFjYANa0QAAAYDBJWRlAAIzAmFjYANa0QAAAYAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTQwWFcwMiBWMiAKAMk= DRM.card0.VGA.1: status: disconnected enabled: disabled dpms: Off modes: edid-base64: Date: Tue Nov 23 20:11:52 2010 InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release Candidate amd64 (20100928.3) MachineType: LENOVO 3389 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=7965020f-a640-4958-8bea-09eb9aaa31a3 ro ProcEnviron: LANGUAGE= PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: xorg dmi.bios.date: 01/20/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 22CN35WW(V2.02) dmi.board.name: NITU1 dmi.board.vendor: LENOVO dmi.board.version: REFERENCE dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnLENOVO:bvr22CN35WW(V2.02):bd01/20/2010:svnLENOVO:pn3389:pvrLenovoIdeaPadU450p:rvnLENOVO:rnNITU1:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A: dmi.product.name: 3389 dmi.product.version: Lenovo IdeaPad U450p dmi.sys.vendor: LENOVO peripherals: system: distro: Ubuntu codename: maverick architecture: x86_64 kernel: 2.6.35-22-generic --- Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: kwin DRM.card0.HDMI.A.1: status: connected enabled: enabled dpms: On modes: 1920x1080 1600x1200 1680x1050 1400x1050 1280x1024 1280x1024 1440x900 1280x960 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400 edid-base64: AP///////wAEafokAQEBARAUAQOANB14Lu7VpVVImyYSUFS/74DRwLMAqUCVAJBAgYCBQHFPAjqAGHE4LUBYLEUACSUhAAAeAAAA/wBBNExNSVowNzIyMDcKAAAA/QAySx5TEwAKICAgICAgAAAA/ABBU1VTIFZIMjQyCiAgAW0CAyXxUpAFBAMCBwYPDh8UHh0TEhEWASMJfweDAQAAZQMMABAAAjqAGHE4LUBYLEUACSUhAAAeAR2AGHEcFiBYLCUACSUhAACeAR0AclHQHiBuKFUACSUhAAAeAjqA0HI4LUAQLEWACSUhAAAejArQiiDgLRAQPpYACSUhAAAYVw== DRM.card0.LVDS.1: status: connected enabled: enabled dpms: On modes: 1366x768 1366x768 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480 edid-base64: AP///////wAGrzwiAAAAAAATAQOAHxF4Cpf1m1lUjCUiUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWRlAAIzAmFjYANa0QAAAYDBJWRlAAIzAmFjYANa0QAAAYAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTQwWFcwMiBWMiAKAMk= DRM.card0.VGA.1: status: disconnected enabled: disabled dpms: Off modes: edid-base64: DistUpgraded: Fresh install DistroCodename: natty DistroRelease: Ubuntu 11.04 DistroVariant: kubuntu DkmsStatus: bcmwl, 5.100.82.38+bdcom, 2.6.38-8-generic, x86_64: installed GraphicsCard: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series] [1002:9552] (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:3903] InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110301.4) MachineType: LENOVO 3389 NonfreeKernelModules: wl Package: xserver-xorg-video-ati 1:6.14.0-0ubuntu4 PackageArchitecture: amd64 ProcEnviron: LANGUAGE=en_DK PATH=(custom, user) LANG=en_DK.UTF-8 LC_MESSAGES=en_DK.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=ab9c6c70-e9b1-4cad-bc9a-efc17e8e8a7d ro ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Renderer: Unknown Tags: natty kubuntu patch Uname: Linux 2.6.38-8-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 01/20/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 22CN35WW(V2.02) dmi.board.name: NITU1 dmi.board.vendor: LENOVO dmi.board.version: REFERENCE dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnLENOVO:bvr22CN35WW(V2.02):bd01/20/2010:svnLENOVO:pn3389:pvrLenovoIdeaPadU450p:rvnLENOVO:rnNITU1:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A: dmi.product.name: 3389 dmi.product.version: Lenovo IdeaPad U450p dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.ia32-libs: ia32-libs 20090808ubuntu13 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 N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/680614/+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
