Did this issue occur in a previous version of Ubuntu, or is this a new issue?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.19 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/v3.19-rc2-vivid/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** 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/1407406 Title: Boot problem when using HDMI Status in linux package in Ubuntu: Incomplete Bug description: The kernel 3.13.0-43 has a problem when using HDMI. Boot is hanging. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-headers-3.13.0-43-generic 3.13.0-43.72 ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10 Uname: Linux 3.13.0-40-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: fritz 1503 F.... pulseaudio /dev/snd/controlC1: fritz 1503 F.... pulseaudio /dev/snd/controlC0: fritz 1503 F.... pulseaudio CurrentDesktop: Unity Date: Sun Jan 4 11:57:32 2015 HibernationDevice: RESUME=UUID=f0ccff6e-8371-4a7a-ad65-21059f84dafd InstallationDate: Installed on 2014-07-19 (168 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 10130 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic root=UUID=2f27634f-c165-466d-b586-a16b68905cff ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-40-generic N/A linux-backports-modules-3.13.0-40-generic N/A linux-firmware 1.127.10 RfKill: SourcePackage: linux StagingDrivers: r8712u UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/04/2013 dmi.bios.vendor: LENOVO dmi.bios.version: IEKT20AUS dmi.board.name: SHARKBAY dmi.board.vendor: LENOVO dmi.board.version: 31900058 STD dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnLENOVO:bvrIEKT20AUS:bd12/04/2013:svnLENOVO:pn10130:pvrLenovoH530:rvnLENOVO:rnSHARKBAY:rvr31900058STD:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: 10130 dmi.product.version: Lenovo H530 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1407406/+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
