Screen only displays if connected at boot up

Good Morning,

We are experiencing an issue with APROL/ Suse Linux where the screen only detects the display if connected on boot up of the PC. If there is no screen connected on boot up
and the it is later connected, there will be no signal.

Has anyone else experienced this? We have checked bios settings and struggling to find how to set this system to ‘hotplug’. This happens on different model PC’s so I feel it is unlikely to be a hardware issue and more of a driver/ configuration issue.

If anyone could give some guidance it would be great.

Regards,
Dale Webb

HI @Dale_Webb , I pinned your question but still no answer there. So I think it is good time reach local support team. Please update us with your findings.

Hello Dale,
this is fairly common on SUSE systems used as industrial PCs or servers

You can verify if graphical manager is started:

systemctl status display-manager

If it is not running:

systemctl start display-manager

But I am nut 100% sure if this works