update from s-media regarding landscape flicker

[joerg]

Am Mi  26. März 2008 schrieb Andy Green:
> - gpg control packet
> Somebody in the thread at some point said:
> > Am Di  25. März 2008 schrieb Andy Green:
> >> No the LCM only understands video timing that is 480 pixels inside a
> >> HSYNC line and 640 lines per VSYNC, plus blanking.
> >
> > Yep, now i see in JBT6K74A it has a 480 bidir(!?) shift register. It never 
can
> > do 640*480 genuine landscape.
> 
> At the same time, on p51 of the ASIC data it says about "Direction
> change", 90 degree rotation, etc if you are "in RAM display mode",
> whatever that means.  Maybe we don't have any RAM on the LCM and there
> is no path through that.

Yeah, when i noticed page 51, i had a quick search through all the doc, but 
didn't get it what RAM display mode means (ok, 140p / 3h). And there's no RAM 
in the block-schematics IIRC. ;-(

Anyway i think we are able to fix the flicker with the gamma thing from p.109 
i mentioned - it fits just too much on what we see. Then use glamo with ~45Hz 
or whatever glamo's video ram bandwidth will give us, and probably we are rid 
of the issue.

OO, OT
jOERG