<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BYT] constant screen flicker and rendering errors [regression]" href="https://bugs.freedesktop.org/show_bug.cgi?id=98036#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BYT] constant screen flicker and rendering errors [regression]" href="https://bugs.freedesktop.org/show_bug.cgi?id=98036">bug 98036</a> from <a class="email" href="mailto:pekka.jylha-ollila@intel.com" title="Pekka Jylhä-Ollila <pekka.jylha-ollila@intel.com>"> Pekka Jylhä-Ollila</a> <pre>The flickering starts as soon as the desktop launches, and almost every screen update causes the screen to go black. After a short while the screen remains black and doesn't show anything. I tried reverting the previously mentioned commit 2efb813 from the latest drm-intel-nightly and it fixed the flickering issue on BYT. The flags passed to i915_gem_object_ggtt_pin in i915_gem_object_pin_to_display_plane changed from PIN_MAPPABLE to (PIN_MAPPABLE | PIN_NONBLOCK), which seems to have caused the problem. Changing the flags back to PIN_MAPPABLE also fixed the flickering. Chris, can you revert this change or fix the issue on BYT?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>