some KVMs blocks EDID screen description
Submitted by Etienne Lorrain
Assigned to Xorg Project Team
Some KVM (to use 2 computers and a single screen/keyboard) are made for the other OS, and this other OS has a default stored in a file when it cannot read the EDID information from the screen. So obviousy, those KVM blocks the I2C EDID information (physical lines not connected) and X display its default max screen resolution as 800x600, whatever the video card and screen are able to handle. "It would be nice" to store the latest successfull read of the EDID in a file somewhere, and re-use that file when no EDID whatsoever can be extracted - so that the a Linux installation needs direct access to the screen - but afterward those KVM can be used.