I can also confirm that after upgrade to Ubuntu 20.04 with kernel 5.4.0-28-generic (12 days ago) there was not a single occurrence of this GPU HANG - on both machines I reported earlier.
I can also confirm that after upgrade to Ubuntu 20.04 with kernel 5.4.0-28-generic (12 days ago) there was not a single occurrence of this GPU HANG - on both machines I reported earlier.