GUI problems on Dragonfly

[Ravnengel]

Hello fellow DragonFly BSD users,
I am a newbie to DragonFly and have experienced some difficulties with setting up a graphical interface. 

After having installed the system itself; 
having done the obligatory pkg install xorg (and lumina-desktop);having added dbus_enabled="YES" to /etc/rc.conf;and doing a trick to start lumina - from a small shell script that contains
exec xinit /usr/local/bin/start-lumina-desktop(this was taken from https://github.com/trueos/lumina/issues/280 )


- it worked for a while, but in the last few days, I get into the same problem: the system boots up correctly, but starting a GUI ends up in "No Signal" on the screen and complete darkness.
What else should I check?
I see other users experiencing something similar, so I think it might be useful to set up a detailed troubleshooting. 

Does anyone have any further ideas on how to solve this? 
Thanks in advance!

Sincerely,

A.A. Arman a.k.a. Ravnengel



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