@onionfx: Looks good to me.  Thanks!

It seems that all affected people are on Linux Mint.  Is there anyone
here who is running a flavor of Ubuntu itself?  If not, could it be that
Ubuntu itself never rolled out the -160 kernel to its users?  Or if they
did roll it out, that it went together with some firmware update that
didn't make into into Mint?

The main report on the Linux Mint forum is:
https://forums.linuxmint.com/viewtopic.php?p=2693612 .

Anyway, when I boot the -160 kernel without "quiet splash", the last
line that I see printed to the console is one of these three:

[    1.527044] kernel: [drm] VCN decode is enabled in VM mode
[    1.527789] kernel: [drm] VCN encode is enabled in VM mode
[    1.528534] kernel: [drm] JPEG decode is enabled in VM mode

That is: the screen stops updating immediately after the DRM part of the
amdgpu kernel module is enabled, and a second later goes black.

Like Howard, afterward I then see these lines in the relevant
/var/log.Xorg.0.log.old file:

[     4.854] (EE) AMDGPU(0): failed to set mode: Invalid argument
[     4.854] (WW) AMDGPU(0): Failed to set mode on CRTC 0
[     4.854] (EE) AMDGPU(0): Failed to enable any CRTC


** Attachment added: "Xorg.0.log.old"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2128729/+attachment/5920296/+files/Xorg.0.log.old

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https://bugs.launchpad.net/bugs/2128729

Title:
  Kernel 5.15.0-160 boots without any video output  (on AMD)

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