Created attachment 1066877 [details] graphical glitches video Description of problem: Graphical glitches appear randomly. It's seems as if an old version of the screen is used instead of the right current one. Everything else (pointer/keyboard input) work as if there were no glitches. Atl-tab to change focused windows fix the actual glitches (but doesn't prevent news to come) see attached video. Version-Release number of selected component (if applicable): Fedora 22 How reproducible: Glitches appear frequently but I've no exact "always reproducer" On the video, loading a stackoverflow page seems to reproduce the bug but not all the time and I can have the bug without it. Expected results: No glitches Additional info: I'm using a MacBook Pro with a intel and a AMD video cards. I deactivate the AMD card and use the intel one using this modification to grub : https://bugzilla.redhat.com/show_bug.cgi?id=765954#c62 First appearance of the bug I recall is from 31 July 2015. No problem before. Using gnome-shell wayland, no glitch.
Created attachment 1066882 [details] Few information about versions and hardware
dmesg contains several times those messages and it seems to correspond to when the glitches appear: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.