<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [GLK DSI] Black screen after grub - Ubuntu 18.04 - kernel latest tip 21.11.2018" href="https://bugs.freedesktop.org/show_bug.cgi?id=108826#c167">Comment # 167</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [GLK DSI] Black screen after grub - Ubuntu 18.04 - kernel latest tip 21.11.2018" href="https://bugs.freedesktop.org/show_bug.cgi?id=108826">bug 108826</a> from <a class="email" href="mailto:markwynngarcia@outlook.com" title="Mark Wynn Garcia <markwynngarcia@outlook.com>"> Mark Wynn Garcia</a> <pre>So I tested it and the screen and backlight now works! However I still encounter some issues: - Suspend/Resume still doesn't seem to power up the screen properly. Only the backlight turns on. - When soft rebooting (e.g. systemctl reboot), grub and splash screen properly shows, but will always fail on initial modeset. - There are rare cases when the screen on initial modeset fails even on normal power on (i.e. not from reboot). - I can sometimes force screen power on to fail by repeatedly turning it off and on through xrandr. But overall the fix makes everything so much better. I guess there's still a couple of cases we haven't checked, but I'm happy to start with this fix.</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>