Bug#892982: system freeze after lock screen/switched off monitors/spontaneously

[Simon Iremonger (debian)]

I can confirm the buster-backports now offers kernel
5.10.0-0.bpo.7-amd64  ..

Please test this following notes on previous bug pointer.
Can the bug now be closed, if that works, or doesn't  -- I don't
think there is an X.org bug here.

--Simon