The error messages have gone away with 4.5-RC1 but the issues remain (i.e. display flicker, display won't turn on again after computer has gone to sleep.
I've currently only got this error message in my DMESG: [ 21.277697] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun -- 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
