Date: Fri, 28 Nov 2025 08:35:54 +0100 From: Paul Floyd <paulf2718@gmail.com> To: freebsd-current@freebsd.org Subject: Re: FreeBSD/X11: Howto revive DisplayPort? Message-ID: <950fe459-217b-4066-99d8-1fa3247d0d84@gmail.com> In-Reply-To: <77c2a2fb-ac5f-4b4a-98c6-660a39ee87b2@gmail.com> References: <20251126163059.3376d3e8@hermann> <77c2a2fb-ac5f-4b4a-98c6-660a39ee87b2@gmail.com>
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On 2025-11-26 22:31, Lars Tunkrans wrote: > 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. > I don't think that this is limited to DP either. I use a ugreen 4port HDMI KVM for Mac mini/workstation/old workstation/R Pi. Sometimes if I boot a device and forget to switch the KVM to the correct port then I get a black screen and have to ssh to whatever to reboot it. A+ Paulhelp
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