Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19 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'. 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/v4.19-rc6 ** 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/1795873 Title: endless loop initializing video Status in linux package in Ubuntu: Incomplete Bug description: With kernel linux-image-4.15.0-36-generic the system continuously tries ti initialize video. The screen backlight blinks all seconds once, but never starts any display-manager or, if booting in text mode, show any text. You cant do anything except press the power button to shutdown the system again. With kernel linux-image-4.4.0-137-generic the system tries to initialize video, fails and then goes on with text mode. startx can be given after to start X11. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-36-generic 4.15.0-36.39 ProcVersionSignature: Ubuntu 4.4.0-137.163-generic 4.4.144 Uname: Linux 4.4.0-137-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tps 9296 F.... pulseaudio /dev/snd/seq: timidity 7270 F.... timidity Date: Wed Oct 3 13:44:00 2018 HibernationDevice: RESUME=UUID=8d0c54be-1645-4764-abd6-905d8e95659a InstallationDate: Installed on 2011-10-19 (2540 days ago) InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: Acer TravelMate P643-M ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-137-generic root=/dev/mapper/vg-root ro elevator=deadline splash acpi=force reboot=bios ipv6.disable=1 vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-137-generic N/A linux-backports-modules-4.4.0-137-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-10-02 (1 days ago) dmi.bios.date: 10/21/2013 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.15 dmi.board.asset.tag: No Asset Tag dmi.board.name: TravelMate P643-M dmi.board.vendor: Acer dmi.board.version: V2.15 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.15 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.15:bd10/21/2013:svnAcer:pnTravelMateP643-M:pvrV2.15:rvnAcer:rnTravelMateP643-M:rvrV2.15:cvnAcer:ct9:cvrV2.15: dmi.product.name: TravelMate P643-M dmi.product.version: V2.15 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795873/+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
