On 7 Dec 2021, at 09:30, Javier Perez <pepebuho@xxxxxxxxx> wrote:
On Sat, 4 Dec 2021 15:16:05 +0800
Ed Greshko wrote:
> So, you have a common keyboard, and monitor? I've not used a KVM switch in a long time but they sometimes would cause
> problems.
A lot of KVM switches don't pass through EDID info correcly (especially
for connections not currently active), there is a kernel option you
can add to the kernel boot line to point at a binary blob of EDID
info that will ovferride whatever incorrect nonsense it is getting from
the KVM. Usually you just want to save the EDID from the real monitor
when it is properly connected, then point the kernel at that so it
will always know the right stuff.
Hi Sorry to barge in.
How do I do that? Do you have a link I could go to and learn how to do it? I have a KVM and whenever I switch from Fedora to the other PCs, I start getting a bunch of lines on the journal complaining that the system could not get the EDID info:
"nvidia-modeset: WARNING: GPU:0: Unable to read EDID for display device VGA-0"
For vga I recall that edid is sent over dedicated pins.It’s worth trying a different cable to see if the cable is the problem. Also try without the kvm in the way. Another thing to check is that the pins in the vga cable and socket have not been damaged. It used to be a problem that pins could get broken off or flattened into socket.
Barry
Thanks
-- ------------------------------ /\_/\ |O O| pepebuho@xxxxxxxxx ~~~~ Javier Perez ~~~~ While the night runs ~~~~ toward the day... m m Pepebuho watches from his high perch.
|
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