xorg driver for geode lx

Robert Schwebel r.schwebel at pengutronix.de
Fri Dec 8 02:31:44 PST 2006

On Fri, Nov 24, 2006 at 03:13:24PM +0100, Rene Rebe wrote:
> > I did some more tests on this issue this morning. I used a vesa driver
> > without any extra options instead of the nsc driver and it worked
> > suddenly perfectly. Hence I doubt that this would be a problem of the
> > synchronisation, seems quite like a wrong RGB colorspace of the nsc
> > driver somehow.
> >
> > > I'm not very consistent with the xorg modules. Perhaps one of the more
> > > experienced list members could comment on font addressing issues?
> >
> > This is not a font problem. All graphic elements look somehow blurred
> > with the nsc driver, vesa however, like mentioned above, works smoothly.
> Higher refresh rate overdriving the aging CRT?

In the meantime, we have another LX800 board running which shows the
same effect; vesa works perfectly, your driver shows colored "shadows"
on the right side. With the Congatec module it is cyan, on the other
board (Kontron PC104) it is slightly red. As both systems have a direct
digital LVDS connection to a TFT panel, I suppose the refresh rate
should be ok due to DPMS.

The effect looks more like the driver isn't playing with the right color
stripe order of the display, and in a different way with both hardware
boards. Could you imagine a reason for that?

 Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
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