<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [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#c88">Comment # 88</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [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:mirek190@gmail.com" title="Miroslaw <mirek190@gmail.com>"> Miroslaw</a> <pre>Hi Sorry I answer so late but I was very busy lately. I attach i915_vbt ... but looks exactly identical. So I also attach whole folders dri/0 for both panels. That not working properly panel "a" works ok now with the path ... until I sleep device...when I wake up device the screen is totally black not even backlight works only restart device helps ... until I sleep device again... I have the same result on panel "b" ( with that path but panel do not need it - just for test )... waking up device from sleep - ... only black screen. Without the path: - panel "a" only works until kernel starts loading drm driver then is black but backlight works. - panel "b" - everything is ok.. no problems.</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 assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>