*** This bug is a duplicate of bug 1832138 ***
https://bugs.launchpad.net/bugs/1832138
Only when using v4.15, if I use the hwe kernel 4.18 on Bionic it passes.
I have strong belief this kernel fix to be a potential good candidate,
but I need to run a bisection to confirm my assumption :
commit 140bcaa23a1c37b694910424075a15e009120dbe
Author: Thomas Hellstrom
Date: Thu Mar 8 10:07:37 2018 +0100
drm/vmwgfx: Fix black screen and device errors when running without
fbdev
When we are running without fbdev, transitioning from the login screen to
X or gnome-shell/wayland will cause a vt switch and the driver will disable
svga mode, losing all modesetting resources. However, the kms atomic state
does not reflect that and may think that a crtc is still turned on, which
will cause device errors when we try to bind an fb to the crtc, and the
screen will remain black.
Fix this by turning off all kms resources before disabling svga
mode.
Cc:
Signed-off-by: Thomas Hellstrom
Reviewed-by: Sinclair Yeh
** This bug has been marked a duplicate of bug 1832138
Login screen never appears on vmwgfx but setting WaylandEnable=false fixes it
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https://bugs.launchpad.net/bugs/1832903
Title:
18.04.2 login screen doesn't work if it uses 'wayland' and if video
kernel driver is 'vgwfx' kernel driver
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