Public bug reported:
Seen on both SuperMicro and Dell AMD Epyc based servers (that's right, I
installed the desktop version of 17.10 on a server):
Dell:
$ lspci | grep VGA
83:00.0 VGA compatible controller: Matrox Electronics Systems Ltd. Device 0536
(rev 04)
$ lspci -s 83:00 -n
83:00.0 0300: 102b:0536 (rev 04)
SuperMicro:
$ lspci | grep VGA
02:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics
Family (rev 41)
$ lspci -s 02:00 -n
02:00.0 0300: 1a03:2000 (rev 41)
The Xwayland default is not a good one here, editing
/etc/gdm3/custom.conf and removing the comment in front of
WaylandEnable=false has fixed every system that has failed.
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1730796
Title:
Ubuntu 17.10 graphical login and desktop unreadable (no hsync,
tearing) on AMD Epyc servers
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