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 -- Karsten Hopp <karsten@xxxxxxxxx> GPG 1024D/70ABD02C Fingerprint D2D4 3B6B 2DE4 464C A432 210A DFF8 A140 70AB D02C Red Hat Deutschland, Hauptstaetter Str.58 70178 Stuttgart, Tel.+49-711-96437-0, Fax +49-711-96437-111
