For whatever reason, the bad kernel is *apparently* `[61968528acfba3cf3cbf4d32f0bfba6fa9e754db] UBUNTU: Start new release`, the first following 4.4.0.53's release.
It may well be, although I also wonder if something went wrong with the commit bisect/build? (Feedback on that please). To git bisect the kernel, I followed [these instructions](https://wiki.ubuntu.com/Kernel/KernelBisection#Commit_bisecting_Ubuntu_kernel_versions). building each version with... ``` vim debian.master changelog # Here, I made changes according to instructions fakeroot debian/rules clean fakeroot debian/rules binary-headers binary-generic binary-perarch ``` After each (1.5-2 hour) build, I install: * `linux-headers-4.4.0-{whatever}_all.deb` * `linux-headers-4.4.0-{whatever}-generic_{whatever}_amd64.deb` * `linux-image-4.4.0-{whatever}--generic_{whatever}_amd64.deb` Then I reboot into that kernel, and I invariably get: * Nothing on the laptop screen (only on the external). * Odd resolution (unlike 4.4.0-57 release and onward). * No external mouse (unlike 4.4.0-57 release and onward). Of course, the last two could be related to bisect landing in the middle, before the fixes for the two above, but I still wonder. Finally, I reboot back into the working kernel, uninstall the three packages I just installed, and run `git bisect bad` (since the test kernel still doesn't work). Then I go back to tweaking the changelog and rebuilding. -- 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/1652354 Title: Internal laptop display stops working in 4.4.0-57-generic Status in linux package in Ubuntu: Incomplete Bug description: I have a Toshiba Satellite P745D w/ AMD graphics, and I'm running the open source Radeon driver. I can use the internal and/or an external VGA monitor just fine in 4.4.0.53-generic and prior. However, upon updating to 4.4.0-57-generic, the internal monitor shuts off after GRUB and will not display anything. Setting NOMODESET in GRUB does not resolve the issue - I had to reboot into 4.4.0-53 to see anything on the internal laptop monitor. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-53-generic 4.4.0-53.74 ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30 Uname: Linux 4.4.0-53-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0p: jason 3081 F...m pulseaudio /dev/snd/controlC1: jason 3081 F.... pulseaudio /dev/snd/controlC0: jason 3081 F.... pulseaudio CurrentDesktop: Unity Date: Fri Dec 23 09:30:44 2016 HibernationDevice: RESUME=UUID=6428aefe-2277-446d-9209-a012d120611b MachineType: TOSHIBA Satellite P745D ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-53-generic root=UUID=7e97fb33-4ee2-499c-a3c4-69f37f16c4f4 ro quiet splash RelatedPackageVersions: linux-restricted-modules-4.4.0-53-generic N/A linux-backports-modules-4.4.0-53-generic N/A linux-firmware 1.157.6 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-05-01 (236 days ago) dmi.bios.date: 05/26/2011 dmi.bios.vendor: TOSHIBA dmi.bios.version: 1.10 dmi.board.asset.tag: NULL dmi.board.name: QOQAE dmi.board.vendor: TOSHIBA dmi.board.version: 1.00 dmi.chassis.asset.tag: * dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: N/A dmi.modalias: dmi:bvnTOSHIBA:bvr1.10:bd05/26/2011:svnTOSHIBA:pnSatelliteP745D:pvrPSMR1U-004001:rvnTOSHIBA:rnQOQAE:rvr1.00:cvnTOSHIBA:ct10:cvrN/A: dmi.product.name: Satellite P745D dmi.product.version: PSMR1U-004001 dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1652354/+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
