HI Yes I have same experience.
I beleive its because the DDC/ EDID info sent from screen over the connection cable is lost if the KVM and screen is not connected to the computer at start up. If I make sure that the screen is attached to the computer when the computer powers up
a Usable resoultion/timing is selected by the graphics card. Regards. Den 2025-11-26 kl. 16:37, skrev FreeBSD User:
Using FreeBSD CURREN and FreeBSD STABLE/15. Also, most systems are attached to a KVM switch, connected via DP. Hosts booting all UEFI. On hosts using X11/xdm GUI, switching forth and back to the output/host I want to use DP does obviously not "lose" DP output, so after graphics has been initialized I'm able to see the GUI. The situation is completely different with plain consoles, provided by FreeBSD's EFI/UEFI simple framebuffer device driver. Working on the console on one host, switching to another host, working there and trying to switch back leaves me with no output anymore! I see this behaviour with different types of KVM switches I have at hand. Can this behaviour be changed, even with no X11? Thanks in advance and wishes, O. Hartmann
-- ------------------------- Lars Tunkrans Oracle SPARC/Solaris System Administrator Fujitsu M12 SPARC Specilaist
