Same issue here. I have the Dell XPS 15 1080p with i7-6700HQ running on kernel 4.4.0-18. There's an occasional completely black frame. The flickering seems to start after "[drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun" appears in the system log.
The same issue seems to occur on the latest Dell XPS 13 as well: 1554613, 1561729, 1552304 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1555158 Title: Screen flickering in kernel > 4.4.0-8 on XPS 9550 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1555158/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs