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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1652354 Title: Internal laptop display stops working in 4.4.0-57-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1652354/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
