Having a recurring issue with Leap 15.5 not reviving from suspend on '12 Mac
Pro, and the issue was also happening in another installed system, Gecko
rolling Plasma.

Leap 15.5 will suspend the machine and clicking on shift key will again start
the "engine" and the display light turns blue, but the screen stays black.

In the case of the Gecko install clicking suspend the machine makes some funny
noise like it is "trying" to suspend, but the machine keeps running, the screen
goes black.

In one of the installs I got the display to come back up, but mousing around
and clicking on the GUI does nothing . . . I think that was the Leap 15.5.

I was switching systems to see if it was a "hardware" issue, but when I got to
my Manjaro install it's fine; I can suspend and wake from suspend.  I'm typing
this in Manjaro.

A forum request has been started on opensuse, so far the only suggestion in it
has been to "file a bug report on bugzilla."

The bugzilla server showed me another similar bug report from 2017 on a Plasma
system; didn't have time today to read through it . . . just making the report
here.

https://bugzilla.opensuse.org/show_bug.cgi?id=1047729