<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BDW] Blank screen and/or screen flickering when leaving screen powersave or after login prompt (LightDM)" href="https://bugs.freedesktop.org/show_bug.cgi?id=97551#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BDW] Blank screen and/or screen flickering when leaving screen powersave or after login prompt (LightDM)" href="https://bugs.freedesktop.org/show_bug.cgi?id=97551">bug 97551</a> from <a class="email" href="mailto:bugs@mblankhorst.nl" title="Maarten Lankhorst <bugs@mblankhorst.nl>"> Maarten Lankhorst</a> <pre>The 4.4 kernel is very old and there have been a lot of changes to modesetting, especially for DP-MST. What you could try is force CRTC assignments: xrandr --output eDP1 --crtc 0 --output DP-1-1 --crtc 1 --output DP-1-2 --crtc 2 Could you try the above and test what happens?</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>