On Sat, 26 Aug 2006 20:43:57 +0100, Dieter wrote: > Why does DDC need to work if the monitor is powered off?
So that if you turn the computer on before the monitor the video card will be outputing the right mode when you turn the monitor on. I always suggest working on modesetting code with an LCD panel so that you don't destroy your CRT monitor. I don't believe it is possible to destroy the LCD panels. Part of the DVI spec is a monitor presence circuit. This needs to be implemented. If the monitor presence disappears the chip needs to blank video output and generate an interupt. KVM switches (the kind with many monitors and one computer) generate this condition. Software gets the interrupt, reads the DDC and sets a correct mode for the new monitor. Linux framebuffer handles this, but the X server doesn't. Jon Smirl [EMAIL PROTECTED] _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
