[Bug 110117] Waking from Suspend causes screen to appear with grey static (like a TV with no signal)

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=110117

--- Comment #9 from Craig <stein12c@gmail.com> ---
I would like to add to this some additional troubleshooting I have performed,
in case it is of use.



just a short history: I am unable to suspend with any Linux distribution and be
able to resume again. Currently running Ubuntu 19.04.

I am attempting to follow the steps here to trace the problem:
https://wiki.ubuntu.com/DebuggingKernelSuspend

This is what I have done so far:

$ sudo apt install pm-utils
$ sudo sh -c "sync && echo 1 > /sys/power/pm_trace && pm-suspend"

I resumed but got my usual screen garbage (looks like static on the screen). I
ssh'd in and did a sudo reboot

Right away I ran this:

$ dmesg > dmesg_post_boot.txt

I looked for Magic number in the dmesg per the ubuntu wiki above and found
these lines:

[    0.950964]   Magic number: 0:66:1001
[    0.950965]   hash matches drivers/base/power/main.c:1012

Now the instructions are to exclude this module from the next boot and see if I
can replicate the problem. How do I exclude main.c or do I even want to? Is it
even possible that the bug is here?

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