[Bug 1780076] Re: 18.04 login screen is skewed/distorted (incorrect stride) when using hibmc_drm graphics
Bin Li
1780076 at bugs.launchpad.net
Thu Sep 13 07:54:04 UTC 2018
** Patch removed: "0001-data-61-gdm.rules.in.patch"
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1780076/+attachment/5188318/+files/0001-data-61-gdm.rules.in.patch
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https://bugs.launchpad.net/bugs/1780076
Title:
18.04 login screen is skewed/distorted (incorrect stride) when using
hibmc_drm graphics
Status in gdm3 package in Ubuntu:
Fix Released
Status in mutter package in Ubuntu:
Won't Fix
Bug description:
[Impact]
* The login screen is blur, with Huawei's Hi1710 chipset. And below
is the hardware information.
05:00.0 VGA compatible controller [0300]: Huawei Technologies Co.,
Ltd. Hi1710 [iBMC Intelligent Management system chip w/VGA support]
[19e5:1711] (rev 01)
* It's really big effect for our customer when they use the arm
server. It's an hardware specific issue, and I've debugged with the
mutter for a while upstream's help, but no luck. And the workaround
patches was accepted by upstream and now in 18.10.
[Test Case]
* It's an hardware specific issue, installed the 18.04 on Huawei's
Hi1710 arm server. After boot up, you will found the login screen is
distorted.
[Regression Potential]
* It's just a kind of workaround, we add one the udev rule to skip
Huawei's chipset, which won't affects other platform.
[Other Info]
* Upstream: https://gitlab.gnome.org/GNOME/mutter/issues/219
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