Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable 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/v4.4.113 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: needs-bisect ** 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/1745945 Title: Kernel update makes HDMI unresponsive Status in linux package in Ubuntu: Incomplete Bug description: I've update to 4.13.0-32-generic in attempts to fix the same problem listed in Bug #1734084. The only reason I've made this bug is because I'm on 17.10 not 17.04. $ lsb_release -rd Description: Ubuntu 17.10 Release: 17.10 $ apt-cache policy linux-image-4.13.0-32-generic linux-image-4.13.0-32-generic: Installed: 4.13.0-32.35 Candidate: 4.13.0-32.35 Version table: *** 4.13.0-32.35 500 500 http://mirror.kayo.moe/ubuntu artful-updates/main amd64 Packages 500 http://mirror.kayo.moe/ubuntu artful-security/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-32-generic 4.13.0-32.35 ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: caymon 1499 F.... pulseaudio /dev/snd/pcmC1D0p: caymon 1499 F...m pulseaudio /dev/snd/controlC1: caymon 1499 F.... pulseaudio CurrentDesktop: GNOME Date: Mon Jan 29 00:55:27 2018 HibernationDevice: RESUME=UUID=29e48daf-947d-44ac-bf09-520219553efe InstallationDate: Installed on 2017-10-23 (97 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) MachineType: System76 Lemur ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-32-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-32-generic N/A linux-backports-modules-4.13.0-32-generic N/A linux-firmware 1.169.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/25/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5.12 dmi.board.asset.tag: Tag 12345 dmi.board.name: Lemur dmi.board.vendor: System76 dmi.board.version: lemu7 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: System76 dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.12:bd01/25/2017:svnSystem76:pnLemur:pvrlemu7:rvnSystem76:rnLemur:rvrlemu7:cvnSystem76:ct10:cvrN/A: dmi.product.family: Not Applicable dmi.product.name: Lemur dmi.product.version: lemu7 dmi.sys.vendor: System76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745945/+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