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Does anyone know of a cheap DisplayPort EDID emulator to fix issues with a KVM and linux? Last time I checked, they were much more expensive than HDMI, to the
by 01100011 1y ago
Does anyone know of a cheap DisplayPort EDID emulator to fix issues with a KVM and linux? Last time I checked, they were much more expensive than HDMI, to the point where it would be better to buy a new KVM.
- crote 1y agoThe issue here is that DisplayPort doesn't use a basic EEPROM hooked up to an I2C bus for EDID. Instead it uses the high-speed DisplayPort-specific AUX bus, which is significantly more complicated to mess around with. Heck, I don't think you can even find any decent documentation about it without joining VESA and signing a bunch of NDAs.
- nyanpasu64 1y agoYou can override EDID in the kernel options (https://foosel.net/til/how-to-override-the-edid-data-of-a-monitor-under-linux/ https://foosel.net/til/how-to-override-the-edid-data-of-a-mo...), but I don't know if you want to add a virtual monitor (unsure if https://askubuntu.com/questions/453109/add-fake-display-when-no-monitor-is-plugged-in https://askubuntu.com/questions/453109/add-fake-display-when... works).
- mlukaszek 1y agoHave a look at https://github.com/DisplayLink/evdi https://github.com/DisplayLink/evdi and (shameless plug, toy project, be gentle) https://github.com/mlukaszek/evdipp https://github.com/mlukaszek/evdipp