Ubuntu
mesa package

  1. Bug #1815172
  2. Comment #0

Comment 0 for bug 1815172

Revision history for this message
Alkis Georgopoulos (alkisg) wrote : Black screen on skylake after 18.0 => 18.2 update

Several schools reported black screens after normally updating their Ubuntu boxes from 18.0.5-0ubuntu0~18.04.1 to 18.2.2-0ubuntu1~18.04.1.

Downgrading mesa fixes the problem.

lspci: 00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:1912] (rev 06) Subsystem: ASUSTeK Computer Inc. HD Graphics 530 [1043:8694] Kernel modules: i915

Unfortunately I can't find a lot of useful information, here are some bits:
 * systemctl --failed says "gpu-manager" and "lightdm" have failed
 * Xorg.log is clean: https://termbin.com/6l2b
 * dmesg too: https://termbin.com/ip4e
 * It happens on lightdm/MATE, I don't know about Ubuntu GNOME.
 * If one runs `xinit` from ssh, it fails with:
i965: Failed to submit batchbuffer: Invalid argument