Public bug reported: I have two Ubuntu 12.04 machines attached to a 2048x1152 screen via a KVM switch.
Each time I switch it comes up with the wrong resolution, *until* I click on System Settings>Displays, when it suddenly and with no further action on my behalf correctly identifies the display and sets the right resolution. (It may only happen after Ubuntu has locked the screen after a timeout) As far as I recall, this is new for 12.04. 11.10 did it right, giving the correct resolution on switching with no further action required. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Uname: Linux 3.2.0-24-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,snap,place,vpswitch,session,resize,grid,regex,move,mousepoll,imgpng,gnomecompat,animation,wall,unitymtgrabhandles,fade,expo,workarounds,scale,ezoom,unityshell] CompositorRunning: compiz Date: Thu Jun 7 15:01:55 2012 DistUpgraded: 2012-04-26 20:56:56,950 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Toshiba America Info Systems Device [1179:0009] InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: TOSHIBA PORTEGE Z835 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=234865dc-97a3-4cf3-9932-254dd6cd6b11 ro quiet splash acpi_osi=Linux acpi_backlight=vendor pcie_aspm=force i915.i915_enable_rc6=1 i915.lvds_downclock=1 vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to precise on 2012-04-26 (41 days ago) dmi.bios.date: 10/19/2011 dmi.bios.vendor: TOSHIBA dmi.bios.version: Version 1.30 dmi.board.asset.tag: 0000000000 dmi.board.name: Portable PC dmi.board.vendor: TOSHIBA dmi.board.version: Version A0 dmi.chassis.asset.tag: 0000000000 dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: Version 1.0 dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.30:bd10/19/2011:svnTOSHIBA:pnPORTEGEZ835:pvrPT224U-001001:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0: dmi.product.name: PORTEGE Z835 dmi.product.version: PT224U-001001 dmi.sys.vendor: TOSHIBA version.compiz: compiz 1:0.9.7.8-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.2 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: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 precise regression-update resolution 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/1010016 Title: When switching with a KVM, display resolution is not detected at first To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1010016/+subscriptions _______________________________________________ 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