Hi there,
Most modern monitors are very clever and tell the X server their
preferred sync rates (which never exceed 85 Hz). You can override
this functionality by adding
Option "UseEdidFreqs" "0"
to the "Device" section of your Xorg (or XFree86) config file.
You will also need to specify your own Modeline to control the monitor
timings. The program 'gtf', which should come standard in most linux
distros, will help you do this. Typing 'gtf' without args will give
you a short blurb on how to use the program. Shove the modeline
output by gtf into the "Monitor" section of your Xorg config file, set
this new modeline as the default timing in the "Screen" section of the
config file, and you should be in business.
HTH,
Stephen
P.S. See http://o-info.bioxray.dk/pipermail/o-info/2003-April/006676.html
for more details.
On 1/31/06, Anastassis Perrakis <a.perra...@nki.nl> wrote:
> Hi all -
>
> While on the subject and after thanking Warren for providing the excellent
> resource ...:
>
> We have some nice 3D monitors and Nvidia cards in Linux PC's we do stereo
> with.
>
> Warren correctly points out that you need:
>
> 1280x960 @ 120 Hz requires H-sync of 123 kHz
> 1344x1008 @ 120 Hz requires H-sync of 130 kHz
> 1400x1050 @ 120 Hz requires H-sync of 136 kHz
> (In fact you need your monitor to switch to these refresh rates only when in
> stereo, but thats a detail)
>
> However, I am totally unable to convince the NVidia drivers we have for
> Linux to
> operate at the sync rates I want them to and Warren advices! Thus, we have
> noticeable flicker at stereo
> mode (in the non-stereo windows only) which is a shame, given our excellent
> monitors.
> Is that expected or can be corrected ?
>
> Could anyone please advice me how to set the Nvidia Linux drivers to operate
> at the proper sync rates then ?
>
> Tassos
>
> PS - Iiyama Vision Master Pro 514 / HM204DT (H-sync: 142 kHz) is still
> available by some European vendors new and is great, we have two, plus an
> old trusty EIZO T966 which is also cool. (Warren, I could not find that on
> your list,its a good machine, does 136 and you might be able to find one
> still)
>
>
>
>
> On Jan 28, 2006, at 20:59, Warren DeLano wrote:
>
> *** For details on how to be removed from this list visit the ***
> *** CCP4 home page http://www.ccp4.ac.uk ***
>
>
> Folks,
>
> Whether you favor Macintosh, Linux, or Windows for stereo 3D
> visualization, you're going to need some specific (and increasingly
> rare) hardware.
>
> To help you find it, we've just updated our information page on
> stereo-3D-capable displays, cards, emitters, and glasses:
>
> http://pymol.sf.net/stereo3d.html
>
> Remarkably, we can now only find one company selling a brand new CRT
> monitor suitable for stereo 3D. If you find any others, please do let
> us know!
>
> Cheers,
> Warren
>
> --
> Warren L. DeLano, Ph.D.
> Principal Scientist
>
> . DeLano Scientific LLC
> . 400 Oyster Point Blvd., Suite 213
> . South San Francisco, CA 94080 USA
> . Biz:(650)-872-0942 Tech:(650)-872-0834
> . Fax:(650)-872-0273 Cell:(650)-346-1154
> . mailto:war...@delsci.com
>
>
>
>
--
Stephen Graham
Crystallography Group
School of Molecular and Microbial Biosciences
University of Sydney
