<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Black screen after grub - Ubuntu 18.04 - kernel latest tip 21.11.2018" href="https://bugs.freedesktop.org/show_bug.cgi?id=108826#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - 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:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> Imre Deak</a> <pre>Miroslaw, could you post a dmesg log booting with drm.debug=0x1e ? I see that there's a suspend followed by a second kernel boot with the nomodeset kernel parameter. Is that some kexec thing? nomodeset will disable the i915 driver: Nov 21 20:25:43 qq-ETP101WL64 kernel: [ 117.478108] [drm:gen9_set_dc_state [i915]] Setting DC state from 01 to 00 Nov 21 20:25:43 qq-ETP101WL64 kernel: [ 117.743131] PM: suspend entry (deep) Nov 21 20:26:59 qq-ETP101WL64 kernel: [ 0.000000] microcode: microcode updated early to revision 0x28, date = 2018-05-22 Nov 21 20:26:59 qq-ETP101WL64 kernel: [ 0.000000] Linux version 4.20.0-994-generic (kernel@tangerine) (gcc version 8.2.0 (Ubuntu 8.2.0-9ubuntu1)) #201811202101 SMP Wed Nov 21 02:04:29 UTC 2018 Nov 21 20:26:59 qq-ETP101WL64 kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.20.0-994-generic root=UUID=c52e7968-edfb-425b-996c-93790fe96a5f ro quiet splash nomodeset vt.handoff=1</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>