Hi there,

this is more like a heads up for everyone. I installed kernel 5.10.4
when it became available in Kernel:stable, so around 12:00 hrs CET at
Jan 1st. I have since then had issues with three of my systems which
never occured to me so far. The issue is, that there is no display
anymore after some time (>= 20 minutes) (i.e. switching to another
vtty doesn't work), and the network also doesn't work. Interestingly,
one system (a Dell Latitude 5500 with an Intel Core(TM) i5-8365U CPU)
still works OK. Common to all systems is the following:

  - openSUSE Leap 15.2 with all updates
  - builtin Intel graphics, no external graphics card
  - builtin Intel network card

What's different is the graphics connector:

  - HDMI on two systems
  - DisplayPort on one system

The Dell laptop - which works OK - is using its builtin display, so no
HDMI or DisplayPort.

I can only use the usual Ctrl-Alt-Print-... sequences to get them
cleanly shut down and reboot.

This never happened with any kernel from Kernel:stable up to 5.10.3!
I'll be off for two days, but thought this might be interesting for
other users/developers here.

I tried both options for kernel-firmware:

  - 20200107-lp152.2.3.1 (from Leap 15.2 Updates)
  - 20201218-35.1 (from Kernel:stable)

without any difference - which makes me believe that this is a kernel
related issue.