Jae-hyeon Park, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.11-rc5 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Tags removed: needs-reassignment ** Tags added: bios-outdated-3.21 needs-upstream-testing ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/911045 Title: [GM45] xrandr does not enable external display after suspend/resume cycle Status in “linux” package in Ubuntu: Incomplete Bug description: An external monitor is connected to the VGA port of my Thinkpad X200 Tablet laptop. Before the laptop is suspended, I can give an xrandr command to set up a dual-head configuration. After resuming from a suspend, xrandr does not turn on the external display even though it seems to arrange the outputs logically within the virtual screen. The external display starts to work if I switch to a text console by CTRL- ALT-F1 and then back to X by CTRL-ALT-F7. This problem can cause window managers such as mutter and compiz to crash if the screen configuration gets changed while they are running. How to reproduce: $ xrandr Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192 LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm 1280x800 60.0*+ 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 connected (normal left inverted right x axis y axis) 1280x1024 60.0 + 75.0 1024x768 75.1 60.0 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) DP3 disconnected (normal left inverted right x axis y axis) $ xrandr --output LVDS1 --mode 1280x800 --panning 0x0 --output VGA1 --mode 1280x1024 --above LVDS1 # at this point, VGA1 is turned on normally $ xrandr --output VGA1 --off --output LVDS1 --mode 1280x800 --panning 0x0 # back to single-head configuration $ sudo pm-suspend # laptop is suspended and resumed $ xrandr --output LVDS1 --mode 1280x800 --panning 0x0 --output VGA1 --mode 1280x1024 --above LVDS1 # now VGA1 is not turned on; one needs to switch to a text console and back to X to enable VGA1 ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 Uname: Linux 3.1.6-1-tuxonice x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,imgsvg,cube,text,place,imgjpeg,expo,ring,regex,imgpng,resize,rotate,workarounds,snap,winrules,scale,resizeinfo] CompositorRunning: compiz Date: Tue Jan 3 00:01:20 2012 DistUpgraded: Log time: 2011-10-15 15:18:55.486720 DistroCodename: oneiric DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:20e4] Subsystem: Lenovo Device [17aa:20e4] MachineType: LENOVO 7448RU2 ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.1.6-1-tuxonice root=UUID=0cf944fe-a93a-44a3-8289-e9c4fdb6c6a8 ro crashkernel=384M-2G:64M,2G-:128M SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to oneiric on 2011-10-15 (79 days ago) dmi.bios.date: 09/24/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 7WET60WW (3.10 ) dmi.board.name: 7448RU2 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr7WET60WW(3.10):bd09/24/2009:svnLENOVO:pn7448RU2:pvrThinkPadX200Tablet:rvnLENOVO:rn7448RU2:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 7448RU2 dmi.product.version: ThinkPad X200 Tablet dmi.sys.vendor: LENOVO version.compiz: compiz 2:0.8.6-0ubuntu9.2.1 version.ia32-libs: ia32-libs 20090808ubuntu26 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 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/linux/+bug/911045/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp