Kernel 4.15rc2+78d9b048446c3c0a83313444fb706f8f3bccdae7: Black screen.

Note: I installed the linux-image-...-generic deb only as the header
ones seemed to require libssl1.1...?

Anyway, I did some research on my own as well.

First, I had a look at the commits between 4.15rc2 and 4.15rc3. The only
one I could see being relevant is this one:

commit a703c55004e1c5076d57e43771b3e11117796ea0
Author: Daniel Vetter <>
Date:   Mon Dec 4 21:48:18 2017 +0100

    drm: safely free connectors from connector_iter seems relevant because the error I get is "Cannot find any crtc or
sizes", and the code emitting this error message (in
drivers/gpu/drm/drm_fb_helper.c) deals with connectors.

This commit is then referenced in other commits later on as being
required to fix, but since 4.16 is "black screen" too those fixes seems
not have helped here.

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  Black screen on 18.04 + AMD RX460

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