Yes this patch is in the mainline kernel v4.5-rc1-wily. But I think regarding our problem here it does only what it says: shut up the messages. I just tested it, got a
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun at boot time now (related: https://bugzilla.kernel.org/show_bug.cgi?id=95461), while the [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! are gone. With external monitor connected things getting worse, gdm isn't able to use the monitor correctly and crashes from time to time. Looks like there are now other i915 bugs (maybe regression?) more urgent. Personally I will stick to 4.4 until I've got time to investigate this further with a clean install of ubuntu to eliminate the possibility that I'm looking at completely unrelated issues here. ** Bug watch added: Linux Kernel Bug Tracker #95461 http://bugzilla.kernel.org/show_bug.cgi?id=95461 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1488719 Title: dmesg shows "[drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!" To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1488719/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
