On Wed, 2003-04-23 at 21:01, Bruce P. Morin wrote: > Hello Everyone, > > Quick question for you knowledgable XFree people out there. I have a > computer that I used to run Windows on. When it ran Windows, the screen > refresh rate was set to 70 Hertz. Since using Linux, I have been getting > headaches when I sit for long in front of the same monitor. This happens > to me when I sit in front of a machine with low refresh rates. > > How can I make sure that the Refresh rate is the same as it was in > Windows. Right now in my XF86Config file I have a setting such as: > > HorizSync 30.0 - 107.0 > VertRefresh 48.0 - 120.0 > > I guess in simple terms, how do I convert the range to what I need? > > Thanks in Advance. This is one of the coolest things I found in Red Hat Linux 9. [ckloiber@xxxxxx ckloiber]$ xrandr SZ: Pixels Physical Refresh *0 1280 x 1024 ( 353mm x 283mm ) *75 60 1 1280 x 960 ( 353mm x 283mm ) 60 2 1152 x 864 ( 353mm x 283mm ) 75 3 1024 x 768 ( 353mm x 283mm ) 75 70 60 4 800 x 600 ( 353mm x 283mm ) 75 72 65 60 56 5 640 x 480 ( 353mm x 283mm ) 75 72 60 6 1152 x 768 ( 353mm x 283mm ) 54 7 832 x 624 ( 353mm x 283mm ) 74 8 700 x 525 ( 353mm x 283mm ) 74 70 59 9 640 x 512 ( 353mm x 283mm ) 75 60 10 576 x 432 ( 353mm x 283mm ) 75 11 576 x 384 ( 353mm x 283mm ) 54 12 512 x 384 ( 353mm x 283mm ) 75 70 60 13 416 x 312 ( 353mm x 283mm ) 74 14 400 x 300 ( 353mm x 283mm ) 75 72 60 56 15 320 x 240 ( 353mm x 283mm ) 75 72 60 Current rotation - normal Current reflection - none Rotations possible - normal Reflections possible - none [ckloiber@xxxxxx ckloiber]$ What you see are all the possible resolution/refresh rates available on my home system. While the rotation stuff doesn't seem to work yet (my LCD can rotate, but apparently X can't), you can change the resolution/refresh *on_the_fly* without being root. 'man xrandr' for details. -- Chris Kloiber <ckloiber@xxxxxxxxxxxx>