Re: FC2 and ATI 3.9.0 works but static...

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On Fri, Jun 04, 2004 at 05:31:31PM -0400, Jack Howarth wrote:
>    Well I made some progress today on solving this issue.
> It seems that the ATI 3.9.0 fglrx driver appears 
> (according to fglrxconfig) to support both 1600x1200
> and 1400x1050. I have found that 1600x1200 is noisy
> with white horizontal streaks on our ViewSonic VP201s
> connected by the digital interface. Also the 1400x1050
> doesn't really appear to exist in the fglrx driver.
> Use of that mode drops the display back to 1280x1024.
> However I was able to create a 1400x1050 that worked
> by adding the modeline...
> 
...
>     I then tried to do the same for 1600x1200 using a lower
> horizontal refresh (55 Hz). However it appears that the fglrx
> driver ignores any additional modelines for the 1600x1200 resolution
> and uses the built in defaults rather than the modeline I enter
> as 1600x1200_55.00. Any idea if we can override this? I suspect if
> we can just tweak down the refresh rate from 60 Hz to 55 Hz at
> 1600x1200 that the static may disappear.

Btw, this is a known issue and ATIs recommended solution is exactly
what you're trying to do:
http://www.ati.com/support/infobase/3992.html
(Stumbled upon this while searching for a solution for some stability issues)

   Karsten


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 Karsten Hopp <karsten@xxxxxxxxx>   GPG 1024D/70ABD02C
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