apport information ** Attachment added: "ProcCpuinfo.txt" https://bugs.launchpad.net/bugs/1189639/+attachment/3942778/+files/ProcCpuinfo.txt
-- 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/1189639 Title: [dp] External Screen doesn't wake up from sleep Status in “linux” package in Ubuntu: Incomplete Bug description: I have a Lenovo X1 Carbon with an external screen connected to a Mini DP to VGA adapter. External screen works fine until the display goes to sleep for inactivity (just the display goes to sleep, not the laptop). When I return to the laptop, the built in screen wakes but the external screen does not. The screen is still detected, xrandr displays the resolution and I can move the cursor to the external display but the display remains off. I have tried cycling with Fn+F7 and also tried Ctrl+Alt+F1 then Ctrl+Alt+F7. The only way to get the external display back on is by disconnecting the adapter from the laptops DP port and reconnecting. dmesg produces: drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting Running Description: Ubuntu 13.04 Release: 13.04 kernel 3.8.0-23-generic xserver-xorg-video-intel: Installed: 2:2.21.6-0ubuntu4 As a workaround I have disabled the monitor from sleeping in System Settings->Brightness & Lock-> Turn Screen off when inactive for --- ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: omri 2408 F.... pulseaudio omri 8582 F.... TeamViewer.exe /dev/snd/pcmC0D0p: omri 2408 F...m pulseaudio DistroRelease: Ubuntu 13.10 HibernationDevice: RESUME=UUID=d46a5b01-0285-4289-8345-692997c83409 InstallationDate: Installed on 2013-10-19 (80 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: LENOVO 3443CTO MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 Tags: saucy Uname: Linux 3.11.0-15-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm bluetooth cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 04/29/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G6ET96WW (2.56 ) dmi.board.asset.tag: Not Available dmi.board.name: 3443CTO dmi.board.vendor: LENOVO dmi.board.version: Win8 Pro DPK TPG dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG6ET96WW(2.56):bd04/29/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3443CTO dmi.product.version: ThinkPad X1 Carbon dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1189639/+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
