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I am currently using a 21"FD Premium Sun Microsystems monitor. For running of experiment purposes, I would like to set the refresh rate for the monitor to at least 100hz if possible. Any clues out there?

My current graphics card is nVidia Quadro 2200.

Ang Jit Wei Aaron
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  • First off, your monitor likely doesn't support that refresh rate, and you'll end up with a non-working setup (best case scenario) or a fried monitor (worst case scenario). – Daniel Jan 11 '16 at 04:14
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    But for the cause of science, I'll answer. – Daniel Jan 11 '16 at 04:14

1 Answers1

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xrandr should do the trick nicely.

First, compute your modeline for your resolution and refresh rate:

cvt 1600 900 75

(Here I'm assuming 1600x900@75Hz. Make sure you change that if yours is different.) Then create a new mode with xrandr:

xrandr --newmode "1600x900_75.00"  104.00  1600 -hsync +vsync

Add the new mode to xrandr:

xrandr --verbose  --addmode VGA-0  "1600x900_75.00"

Then enable it:

xrandr --output VGA-0 --mode "1600x900_75.00"

Note that your values will be different. Run xrandr with no arguments to find out the name of your monitor and use that instead. Running xrandr -q will display a list of available outputs.

Here's some more information on xrandr.

Thanks to this answer for the nitty gritty details.

Community
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Daniel
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