On 11/16/2011 06:20 PM, waltd...@waltdnes.org wrote: > On Tue, Nov 15, 2011 at 09:53:47AM -0500, Michael Mol wrote > >> Just an FYI, EDID blocks have been part of CRT tech since the mid to >> late 90s; it's the basis of "plug & play" monitors. >> >> IIRC, the EDID block is transported via DDC, which is essentially I2C >> implemented on top of your VGA cable. I've got three EDID-supporting, >> 19" 1600x1200 CRTs staring me in the face right now. >> >> https://plus.google.com/108080062547354628132/posts/ZLLw66eL4We > Maybe X has learned how to read them without udev's help. The xorg > logfile shows the EDID block, max/min horizontal/vertical scan rates, > supported modes, etc. > Xorg's been around since 2004, and udev since 2003, so it's possible that it's depended on udev for displays.
It seems unlikely, though; I remember XFree86 4.x having EDID support, just prior to people migrating over to Xorg. It was a royal pain, actually; my Thinkpad 760XL's LVDA (I think it was LVDA. It wasn't a common laptop video connection yet) display didn't support EDID, and I never did manage to get any version of XFree86 newer than 3.3.6 working on it. Point is, Xorg autoconfiguration has worked find for *most* setups for almost a decade. At the very least, it's worked fine since the first graphical Knoppix and Ubuntu live CDs.
