Just a heads up. We started getting blacked out windows for assign on a laptop with Intel® UHD Graphics 620 (Kabylake GT2) after updating CentOS 7 at the end of February. This seems to be down to a specific hardware/driver combination, but others may encounter something similar. For us the fix was to roll back the mesa-dri-drivers package one increment from
mesa-dri-drivers.x86_64 0:18.3.4-6.el7_7
to
mesa-dri-drivers.x86_64 0:18.3.4-5.el7
with the command
sudo yum downgrade mesa-dri-drivers
hopefully this will be fixed in the next update of the package.
Thanks, Brian.
Looks like it is similar to the following thread
https://www.ccpn.ac.uk/forums/showthread.php?tid=68
so I`ll put a cross-link to here.
Vicky