Porteus 4.0 X86_64 - Xfce. No system modifications. UEFI only boot environment.
Symptom:
After logging out using the Xfce graphical utility, and then logging back in as guest, if you go to a virtual terminal session [ctrl-alt-f2..f6] and then use ctrl-alt-f7 to get back to the x-window environment, the screen is black. For me, the behavior is repeatable.
This behavior does NOT manifest itself if I don't log out and log back in - virtual terminals and the return to X11 works as it should.
Notes: perhaps it is my hardware, an Intel NUC. Possibly triggered by the combination of logging out, logging back in, followed by a virtual terminal session confusing the eventual return to X11?
Found a workaround:
If this happens, instead of using the canonical ctrl-alt-f7, increment it by one to ctrl-alt-f8. The screen at f7 is still black if you try to access it. Not sure if this is the intended behaviour.
Screen doesn't recover after logout
Screen doesn't recover after logout
That's a UNIX book - cool. -Garth