<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] Occasional display hang on DPMS resume" href="https://bugs.freedesktop.org/show_bug.cgi?id=105571#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] Occasional display hang on DPMS resume" href="https://bugs.freedesktop.org/show_bug.cgi?id=105571">bug 105571</a> from <a class="email" href="mailto:freedesktop-bugs@PaulSD.com" title="Paul Donohue <freedesktop-bugs@PaulSD.com>"> Paul Donohue</a> <pre>This happened again today. Laptop was last booted on 04/01/2018. I was working on my laptop on battery (last time this happened it was on A/C power), closed my laptop lid, opened it again about a minute later, the backlight did not immediately come on like it usually does, the backlight came on after a few seconds, but the screen remained black after the backlight came on. I closed and re-opened the lid again, and the backlight turned off and never came back on. I plugged in an external monitor and managed to enable it, and everything seems to be working fine on that external monitor. Same kernel and DMC as before: kernel 4.13.0-37-generic, DMC 1.26 Stack trace in dmesg looks the same as before (I will attach it). Xorg.0.log has nothing interesting in it. /sys/class/drm/card0/error says "No error state collected". xrandr says "xrandr: Output eDP1 is not disconnected but has no modes". xrandr --verbose says the eDP1 backlight is on, but it definitely is not. The brightness buttons on the keyboard don't seem to do anything.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>