disco has 4.19.x
** Changed in: mesa (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1815172
Title:
Black screen on skylake after 18.0 => 18.2 update
Status in Mesa:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in mesa package in Ubuntu:
Invalid
Status in linux source package in Bionic:
New
Status in mesa source package in Bionic:
Fix Committed
Status in linux source package in Cosmic:
New
Status in mesa source package in Cosmic:
Fix Committed
Bug description:
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
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