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Re: EDID & KVM switch: feature request



>>>>> "EL" == Etienne Lorrain <etienne_lorrain@yahoo.fr> writes:

 EL> Hello,

 EL> Sorry, just a feature request...  Some KVM (to use 2 computers and
 EL> a single screen/keyboard) are made for the other OS, and this other
 EL> OS has a default stored in a file when it cannot read the EDID
 EL> information from the screen.  So obviousy, those KVM blocks the I2C
 EL> EDID information and Debian display its default max screen
 EL> resolution as 800x600, whatever the video card and screen are able
 EL> to handle.  "It would be nice" to store the latest successfull read
 EL> of the EDID in a file somewhere, and re-use that file when no EDID
 EL> whatsoever can be extracted - so that the installation of Debian
 EL> needs direct access to the screen - but afterward those KVM can be
 EL> used.

 EL> I hope I am sending to the right place.

	Since it's an X.Org problem, and not quite a problem with Debian
	packaging, I'm not sure that it is.  You may probably have a
	better luck suggesting this feature to the X.Org developers.
	(Try to use an appropriate bug, problem or feature request
	tracker so that this suggestion doesn't get lost like it surely
	will in this mailing list's archive.)

	Personally, I've solved this problem as follows:

	* launched the X server with the display attached directly to
	  the video card;

	* checked the display parameters, as recorded in the X server's
	  log (e. g., /var/log/Xorg.0.log);

	* prepared a Monitor section for the X.Org configuration file
	  (e. g., /etc/X11/xorg.conf), like:

Section "Monitor"
	Identifier	"MyDisplay"
...
	HorizSync	30-81
	VertRefresh	56-75
...
	Option		"PreferredMode"	"1280x1024"
	Option		"MaxClock"	"140"
EndSection

	* reattached the display through the KVM switch and restarted
	  the X server.

-- 
FSF associate member #7257


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