----- Original Message -----
Sent: Wednesday, October 17, 2001 1:08
PM
Subject: [Newbie]Vertical Refresh / Modes
questions
Hello, all.
I am running XFree86 4.03 that shipped with RedHat
7.1. I have an i810 chipset with 16MB ram. My monitor is a Compaq
P110 21" capable of 1600x1200x24bppx85Hz, which the i810 should be able to
create. If I set my DefaultColorDepth to 16 and Modes "1600x1200", X
runs fine but my Vertical Refresh is reported as 60.0Hz by xvidtune.
This (as you know) causes an eye-straining flicker. Also, when I set my
DefaultColorDepth to 24 and Modes "1600x1200", X will run fine again, but
xvidtune reports the resolution at 1400x1050 and the vertical sync at
59.xx.
My goal here is to run 1600x1200x24bppx85Hz.
How can I tell X to use the 85Hz refresh? Why is X dropping my
resolution to 1400x1050 when I try to run 1600x1200 @ 24bpp?
I think I may have to use the Modes or ModeLine
options to override the default VESA modes, but I have no idea how to
calculate the correct DotClock, Htimings, etc. to obtain the results I am
looking for and I have found no documentation in this area. Any help or
pointers to more in-depth documentation is GREATLY appreciated. I have
attached my XF86Config-4 file for reference.
Thanks
Tim
<<XF86Config-4>>
