<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL] Flashing black screen with dual monitors" href="https://bugs.freedesktop.org/show_bug.cgi?id=99322#c29">Comment # 29</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL] Flashing black screen with dual monitors" href="https://bugs.freedesktop.org/show_bug.cgi?id=99322">bug 99322</a> from <a class="email" href="mailto:tim@buttersideup.com" title="Tim Small <tim@buttersideup.com>"> Tim Small</a> <pre>I'll add an attachment in a moment, it follows a boot up. The system was powered up with a single DP monitor, around 1 minute into the boot, a second monitor was turned on (already connected to the other DP connector - DP-2-8). After a few minutes, both monitors went black for about 5 seconds, then the left-hand monitor came back, but not the right-hand one (DP-2-8), which is in power-saving mode. Here is the xrandr output: ~$ xrandr Screen 0: minimum 320 x 200, current 7680 x 2160, maximum 8192 x 8192 HDMI-1 disconnected (normal left inverted right x axis y axis) DP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 621mm x 341mm 3840x2160 60.00*+ 30.00 25.00 24.00 29.97 23.98 1920x2160 59.99 2560x1440 59.95 1920x1080 60.00 60.00 50.00 50.00 59.94 1920x1080i 60.00 50.00 59.94 1680x1050 59.95 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1280x720 60.00 50.00 59.94 1024x768 60.00 800x600 60.32 56.25 720x576 50.00 720x480 60.00 59.94 640x480 60.00 59.94 HDMI-2 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) HDMI-3 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) DP-2-8 connected 3840x2160+3840+0 (normal left inverted right x axis y axis) 621mm x 341mm 3840x2160 30.00*+ 25.00 24.00 29.97 23.98 2560x1440 59.95 1920x1200 59.95 1920x1080 60.00 50.00 59.94 30.00 25.00 24.00 29.97 23.98 1600x1200 60.00 1680x1050 59.88 1280x1024 75.02 60.02 1280x800 59.91 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DP-2-1 disconnected (normal left inverted right x axis y axis)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>