(In reply to tranceash from comment #38) > looks like a power management issues dating 8 months back, Also happened on > the broadwell systems https://bugs.freedesktop.org/show_bug.cgi?id=91393. > This makes any linux system a pain to work because of this integrated gpu > driver . Skylake has been out for 7 months and we still have problems
I am starting to believe that the common error [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun is not actually responsible for the flicker. To be more precise, the FIFO underrun may result in conjunction with a flicker, but is not a unique indication. I am currently bisecting the kernel and right now I am on commit 5ffd4da+. This commit does show the FIFO underun but not at the same time the screen turns completely black for a split second. I assume the flicker (screen completely black for a split second) is not directly mapped by the FIFO underrun. Reading https://bugs.freedesktop.org/show_bug.cgi?id=91393, I think our bug is at least related, if not identical. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1554613 Title: screen flickering on XPS13 9350 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
