I think I've been having the same issue as well, but I'm also not sure
that this is 100% "new". The symptoms I'm having are consistent (mouse
cursor continues to move, video freezes for ~2 seconds at a time leading
me to think that the machine has crashed, GPU HANG and Resetting rcs0
log events, but machine is running underneath which is obvious because
audio keeps working.)  I can kill the offending video process (Zoom) and
the issue subsides.

I can reliably reproduce the problem on 5.3.0-46-generic (Ubuntu 19.10
latest) and downgrading to 5.3.0-45-generic seemed at first to fix the
problem. But I think that it's just less frequent on the previous
kernels.  I use my machine 5 days a week for 2-4 hours a day on Zoom.
With the -46 kernel, simply launching a Zoom meeting kicks off the
problem.  However today after downgrading to the -45 kernel, while the
problem doesn't immediately happen, it has "glitched" once where the
machine had the same behavior for ~2 seconds and went back to working as
expected.

Looking back over the last 3 months, these events - assuming that the 
"Resetting rcs0 for hang on rcs0" log event indicates the 2 second video 
glitch, it's been rather common.  It's just *much* more common on the -46 
kernel.  Attached is a grep of journalctl since 2020-01-01 for the relevant log 
messages:
- kernel boot message to show the version
- i915 GPU HANG
- i915 Resetting rcs0 for hang on rcs0

Command: journalctl -o short-iso --since=2020-01-01 | egrep "Command
line: |Resetting rcs0 for hang on rcs0|GPU HANG"

** Attachment added: "lp-1872001-logs.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872001/+attachment/5354740/+files/lp-1872001-logs.txt

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Title:
  5.3.0-46-generic - i915 - frequent GPU hangs  / resets rcs0

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