eye-friendly refresh rate?

[Frank McCormick]

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On Tue, 03 Apr 2007 13:32:25 +0200
Eberhard Roloff <tuxebi at gmx.de> wrote:

> Frank McCormick wrote:
> > Matthew Flaschen wrote:
> > | Vincent Trouilliez wrote:
> > |> Josef Wolf <jw at raven.inka.de> wrote:
> > |>> When I install ubuntu, I always get 60 Hz refresh rate.  This
> > |>> is very annoying on a non-flat CRT.
> > |> Well, I think it would be equally annoying on flat CRT's ! ;o)
> > |>
> > |> Most likely, it's because when you installed Ubuntu, your
> > |> monitor was not detected properly, and therefore it used fail
> > |> safe/conservative default values, which has the unfortunate side
> > |> effect only allow for low
> > |
> > | You could also try:
> > |
> > | sudo dpkg-reconfigure xserver-xorg
> > 
> > 
> > ~   And after all this it may be you will be stuck with the 60 hz
> > refresh rate. On my machine if I want to run 1280x1024 I have no
> > choice but 60 hz. It depends how the xserver-xorg was setup and the
> > capabilities of your video card/monitor combination.


> I doubt this. While X is sometimes complicated, imho the beauty of X
> is that you can set anything up to your likings, if it physically
> works.
> 
> I would recommend to google for "modeline calculator" or similar to
> set your 1280x1024 to a eye-friendly refresh rate.
> 

  Not always true. In my case for example, a refresh rate higher than
60hz for 1280x1024 requires a horizontal rate higher than my monitor
is capable of.

here's the modeline for 1280x1024 at 75hz

 Horizontal Resolution:   1280 
  Vertical Resolution:     1024 
  Vertical Refresh Rate:   75.00 Hz 
  Horizontal Refresh Rate: 80.42 KHz 
  Dot Clock Frequence:     151.83 MHz 

 # V-freq: 75.00 Hz  // h-freq: 80.42 KHz
 Modeline "1280x1024" 151.83  1280 1360 1544 1888  1024 1024 1027 1072 
 
 My monitor (a NEC MultiSync) can only do 30 to 70 Khz. So I can only
run 1280x1024 at 60 hz.

 

Cheers
Frank


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