Apple M9179LL/A 30" Widescreen LCD with rv280

Benjamin Herrenschmidt benh at
Sat Feb 26 16:48:12 PST 2005

On Sat, 2005-02-26 at 18:14 +0100, Morten Sylvest Olsen wrote:

> Funny how problems always comes in twos :) I have more or less the same problem wrt. to my 1536x2048 monitor. I found that it is possible to download a spreadsheet from VESA which calculates using the CVT standard instead of the old GTF formula. You can 
> find it at: (you can read it using OpenOffice)
> It doesn't generate modelines directly, but you can derive them from the values of sync, backporch and frontporch (or type them into 
> One thing I did notice was that it seems reduced blanking modes are supposed to be signified with +hsync -vsync, and I am
> not sure for my monitor that X does the correct thing with the mode obtained from the EDID data from the monitor.

Interesting... X (and the kernel too) have a problem with the EDID
obtained from Apple recent monitors too... They generate a mode that
doesn't sync on the monitor. I'm waiting for Apple to ship a 23" I just
ordered, so hopefully, I'll be able to investigate myself tho...


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