4.1.0-040100-generic works 4.4.14-040414-generic works Didn't test others.
The boot sequence is different with the main line kernels. There is a black screen period with a couple of messages (1-2s), then the console font load, then it briefly switches to the splash, black screen flash back to the prior screen then the login prompt. There is no DPMS flash (the monitor displays a dialog for 1s when it is DPMS powered off) Whereas when, say, 4.2-ubuntu rarely randomly works, or with 3.19-ubuntu, it just stays at a black screen, briefly flashes a DPMS power off notification, and then goes to the login screen without showing the couple of messages. Sounds like an Ubuntu kernel bug? Obnoxiously all the console messages are not captured in the journal, that seems like another bug.. On Tue, Jul 19, 2016 at 1:21 PM, Joseph Salisbury < [email protected]> wrote: > Would it be possible to test the upstream stable 4.0 and 4.1 kernels? > They can be downloaded from: > > 4.0: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-vivid/ > 4.1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-wily/ > > We can perform a kernel bisect once we identify the last good and first > bad kernel versions. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1603810 > > Title: > Ubuntu turns monitor permanently off during boot > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1603810/+subscriptions > -- 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/1603810 Title: Ubuntu turns monitor permanently off during boot Status in linux package in Ubuntu: Confirmed Bug description: This is a regression, at least trusty (and prior) worked fine on this hardware. Booting the Xenial installer image off USB also worked fine. The system boots fine, however the monitor is in DPMS power-off and does not ever turn back on. Switching VTs doesn't help, I have found no way to get it switch on. Removing '$vt_handoff' from grub resolves the problem and the system seems to work fine. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jgg 2224 F.... pulseaudio /dev/snd/controlC0: jgg 2224 F.... pulseaudio CurrentDesktop: Unity Date: Sun Jul 17 14:04:30 2016 HibernationDevice: RESUME=UUID=b254872c-e84b-427c-bebe-343c031cbdcd InstallationDate: Installed on 2016-04-22 (86 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) IwConfig: lo no wireless extensions. enp6s0 no wireless extensions. MachineType: System manufacturer System Product Name ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed root=/dev/mapper/main2-xenial64 ro quiet splash RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware 1.157.2 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/25/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0805 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8H67-M EVO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0805:bd11/25/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8H67-MEVO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1603810/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
