[Openchrome-users] letterbox on monitor while 720p on tv

[vpcompany@tiscali.it]

2009-12-10 at 12:09 John Robinson
> (the above is a VESA 60Hz mode) you'd end up with:
> Modeline "1280x720_1024"   108   1280 1328 1440 1688   720 873 876 1066 
>   +hsync +vsync


tnx john: now I've a hope! :)
I tried also this:
108.88  1280 1360 1496 1712 720 873 876 1060 -HSync +Vsync
($ gtf 1280 1024 60 -v)

but I do not get the black borders in any mode :S
maybe I've to find the right tuning :P bzzzt bzzt

anyway as soon as I enable tvout at 720p:
        Option      "TVOutput" "RGB"
        Option      "TVType" "720P"

the hardcoded modeline wins (I know, inside openchrome)... and I loose :(
(by now)

any further trick? at least for testing the letterbox mode w/o tvout?
regards, a.
p.s. I've a 3344 + 1625 (as my system is an epia en1200e)