Comment 22 for bug 2015314
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| Daniel Wroblewski (danielagw) wrote | #22 |
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I am experiencing the same issue. I have two laptops, one MacBook Air and one Dell Inspiron with Ubuntu 22.04. I constantly need to switch the monitor between these two. I have an HDMI switcher which used to work great on Ubuntu 20.04. But now with Ubuntu 22.04 it is not possible. Ubuntu is able to display the picture on the monitor only after plugging the HDMI in. After I switch to Mac, I am unable to switch back to Ubuntu.
I guess this must have something to do with how KVM and HDMI switchers work. Maybe they don't disconnect the inactive device entirely and, as a result, switching back to Ubuntu does not trigger the same behavior that connecting the HDMI cable does? It's important to note that after switching the HDMI from Ubuntu to Mac, Ubuntu is fully aware that HDMI has been disconnected and the external monitor is not detected. But still it never gets detected again.