[Savage40] Thinkpad T23 and external monitor 1680x1050

[Alex Deucher]

--- Gianluca Interlandi <gianluca at u.washington.edu> wrote:

> I have a Thinkpad T23 with S3 video card. I have bought a Philips
> 20inch 
> 1680x1050 widescreen monitor (200w6cb) which I attach to my laptop
> through 
> the VGA connector. I use the options "UseBios" "FALSE" and "CrtOnly" 
> "TRUE".
> 
> It works fine at the full resolution of 1680x1050 and 32-bit color
> depth. 
> However, if I try to watch a DVD movie with mplayer or xine the image
> 
> starts flickering and there are strange horizontal lines. This does
> not 
> happen if I watch a mpeg file containing a movie at low resolution.
> If I 
> turn down the color depth to 16-bit everything is fine and I'm able
> to 
> watch DVDs. What could the reason be? I have xorg-6.8.2 and 
> savage-20050718 drivers.
> 
> In any case, I hope that the information in this e-mail is of help to
> 
> other people who own a Thinkpad T23 and are thinking about using it
> with 
> an external monitor. In summary, it works apart from small issues
> with 
> DVDs and 32-bit.
> 

Memory bandwith.  The chip doesn't have enough bandwidth to push a
hi-res video as well as a 32 bpp widescreen graphical display.

Alex



       
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