At 4:56 PM -0500 10/15/05, Jeff Vian wrote: >On Sat, 2005-10-15 at 13:31 -0400, sean wrote: >> Jiann-Ming Su wrote: >> > On 10/14/05, sean <seandarcy2@xxxxxxxxx> wrote: >> > >> >>I hand edited xorg.conf so that the monitor section has >> >> >> >>VertRefresh 60 >> >> >> >> >> > >> > >> > Set both VertRefresh and HorizSync to match your monitor's spec. For >>example: >> > >> > Section "Monitor" >> > Identifier "Monitor1" >> > VendorName "Dell" >> > ModelName "1704FPVt" >> > HorizSync 30-81 >> > VertRefresh 56-76 >> > Option "DPMS" >> > EndSection >> > >> > X will figure out what the refresh rate should be. >> > >> >> Yes. That's the problem. It's choosing 75hz, while i want >> 60. And yes, of course, I have the horizsync set. In any >> event, in your conf it doesn't matter because dpms is set. >> >> X is choosing the *wrong* refresh rate. How do I specify it? >> > >change the VertRefresh above to something like > VertRefresh 56.0 - 60.0 >or if you want it to be only 60 then > VertRefresh 60.0 - 60.0 >will work. > >This is what I had to do when mine tried to use the default settings but >would never allow use of the maximum resolution for the monitor unless >it was at 60.0. My default was also the 56.0 - 75.0 range. I'm way out of my depth here (and don't even have an LCD display), but from a disscussion on another mailing list about modelines, it may be that the timings being computed are allowing more time in retrace than is really needed by LCDs, resulting in a dot-clock that is too high for the LCD. I don't really know what to do about it, but it may be a clue. The gtf program that Stuart mentioned shows "extra" timings that might profitably be tweaked if one knew how. ____________________________________________________________________ TonyN.:' <mailto:tonynelson@xxxxxxxxxxxxxxxxx> ' <http://www.georgeanelson.com/>
