I just noticed your AMD GPU is a "Renoir" which isn't fully supported
until kernel 5.5, and you have kernel 5.4. So it might be useful to try
a newer kernel. Please try:
sudo apt install linux-generic-hwe-20.04-edge
and then reboot.
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I tried installing nvidia 450 and 455, and on both tries, I get the same
issue. When I try setting the driver settings to use nouveau instead,
the GUI doesn't even load. It's just a black screen (that resembles a
TTY) with the text:
such-and-such / such-and-such blocks
ucsi_acpi usbc000:00: ppm
Same problem here. Reproducable by switching virtual terminals a few times with
.
The only thing the system responds to is a ping (but no ssh) and a
REISUB.
This only happens to me on kernel 5.4.0-56-generic. If I revert to the previous
kernel, 5.4.0-54-generic, the freeze does not happen.
Thanks. Good news at least that I don't see any kernel driver crashes
there.
** Changed in: xorg-server (Ubuntu)
Status: Incomplete => New
** Package changed: xorg-server (Ubuntu) => nvidia-graphics-drivers-440
(Ubuntu)
** Also affects: xserver-xorg-video-amdgpu (Ubuntu)
Importance:
I apologize. I'd misread your instructions as "-b-l" (as in, L, instead
of the number one) and I got an error, so I assumed that I was supposed
to pass "-b -l". When I realized my mistake, I reproduced the error
again, and then rebooted again, and this time, I passed "-b-1" (with the
number one).
** Attachment added: "journalctl result output file"
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1906449/+attachment/5440745/+files/prevboot.txt
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