ullix, the next step is to fully reverse commit bisect from kernel 3.19 to 4.1-rc4 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?
Please note, finding adjacent kernel versions is not fully commit bisecting. Also, you would have to uninstall the bcmwl module for the duration of the bisect so proprietary module errors are avoided. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: kernel-fixed-upstream-4.1-rc4 latest-bios-a03 needs- reverse-bisect ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1456596 Title: DELL XPS 13 (9343) Strange, seemingly perpetual repeat of drm activity To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1456596/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs