Re: [Linux-fbdev-devel] [RFC][PATCH][FBDEV]: Setting fbcon's

[Antonino Daplas]

On Sat, 2003-01-11 at 02:18, James Simmons wrote:
> 
> > Here's an improved GTF implementation.  I was a bit delayed because I
> > was trying to find a way to do square roots without using floating
> > point.  The diff is against linux-2.5.54 + your latest fbdev.diff.
> 
> Applied. 
> 
> > but is more or less usable.  Tested with i810fb and rivafb. (For rivafb,
> > I have to use a hacked version. The latest one does not work for the
> > riva128).
> 
> What hack did you do? That is based on the latest riva driver from 2.4.2X.
>  
I just combined the old riva_hw.c in linux-2.5.52 with the new fbdev.c
code.  Not too sure why, either the newest riva_hw.c has dropped support
for old hardware, or we are using it incorrectly.  If I'm to guess, the
new riva_hw.c did not come from linux-2.4.20, but probably from Xfree86?

> > BTW, I downloaded the source code of read-edid, and it seems that the
> > following monitor limits are parsable from the EDID block: HorizSync,
> > VertRefresh, DotClock, and GTF capability. We may change info->monspecs
> > to match that. Also, the EDID contains a list of supported modes, but
> > there's only 4 of them(?).  
> 
> I figured monspec would have to be improved. I'm looking into the EDID 
> info right now. I'm also looking at read-edid. Next I need to figure out 
> how to use i2c to get this info.
> 
Good luck :-)

Tony