Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/ ** 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/1449508 Title: Could not connect external monitor through DP Status in linux package in Ubuntu: Incomplete Bug description: This issue was fixed few days ago, but after upgrading to kernel 3.19.0-15-generic it's there again. Old issue: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427221 --- ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: vlado 1643 F.... pulseaudio /dev/snd/controlC0: vlado 1643 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 15.04 HibernationDevice: RESUME=UUID=d80fa3b5-cda8-47ca-888c-a6dcb14f919b InstallationDate: Installed on 2015-03-10 (48 days ago) InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20BX001YXS Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 RelatedPackageVersions: linux-restricted-modules-3.19.0-15-generic N/A linux-backports-modules-3.19.0-15-generic N/A linux-firmware 1.143 Tags: vivid Uname: Linux 3.19.0-15-generic x86_64 UpgradeStatus: Upgraded to vivid on 2015-03-30 (28 days ago) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 02/03/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET45WW (1.10 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BX001YXS dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET45WW(1.10):bd02/03/2015:svnLENOVO:pn20BX001YXS:pvrThinkPadT450s:rvnLENOVO:rn20BX001YXS:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BX001YXS dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1449508/+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
