Public bug reported: Dual monitors with both monitors connected via DVI to a dual head nVidia GTS250 card. However, xrandr thinks that the secondary monitor is an HDMI connection:
nick@PreciseBeta2:~$ xrandr Screen 0: minimum 320 x 200, current 3640 x 1920, maximum 8192 x 8192 DVI-I-1 connected 2560x1600+0+0 (normal left inverted right x axis y axis) 641mm x 401mm 2560x1600 60.0*+ 1920x1440 60.0 1920x1200 59.9 1600x1200 60.0 1280x1024 75.0 60.0 1280x800 59.8 1152x864 75.0 1024x768 75.1 60.0 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 HDMI-1 connected 1080x1920+2560+0 left (normal left inverted right x axis y axis) 509mm x 286mm 1920x1080 60.0*+ 1280x1024 75.0 60.0 1152x864 75.0 1024x768 75.1 60.0 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 I get a desktop across both monitors ok with the Nouveau driver, which I am using, but if I switch to the proprietary nVidia driver, I cannot get a display on the secondary monitor. I also have 10.04 installed on the same machine, and booting into it and running xrandr shows the expected DVI connection for both monitors. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: x11-xserver-utils 7.6+3 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CurrentDmesg: [ 46.997465] init: plymouth-stop pre-start process (1733) terminated with status 1 Date: Fri Apr 13 12:12:06 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation G92 [GeForce GTS 250] [10de:0615] (rev a2) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device [10de:0592] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328) MachineType: System manufacturer System Product Name ProcEnviron: LANGUAGE=en_AU:en TERM=xterm PATH=(custom, no user) LANG=en_AU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=bd63604b-4966-4536-81eb-346f287a68b5 ro quiet splash SourcePackage: x11-xserver-utils UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/21/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1408 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P6T dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1408:bd09/21/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6T:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.7.4-0ubuntu3 version.ia32-libs: ia32-libs 20090808ubuntu35 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 ** Affects: x11-xserver-utils (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 precise ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/980453 Title: xrandr reports wrong connection type for secondary monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11-xserver-utils/+bug/980453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs