I am trying to change the resolution from 1024x768 to 1600x1200 without succes. I am modifeing xorg.conf at the right section( 24 depth....wich is my defaullt depth), and replace 1024x768 with 1600x1200, when i restart X it puts me in 800x600 mode, and when i chk xorg.conf the setting are still there. Why X dosint accept my settings( 1600x1200 ).
Pls tell me what i should do... and explain like for the bigest

i- Did you check if your monitor do support this resolution?

ii- Probably you'll have to modify the frequence range also. (I don't remember if it's horizontal or vertical freq.)

iii- Use 'xorgconfig' (or something like that, or 'xf86config' if you're using XFree86 instead of X.org) to modify the file, it's better. Later you can fine-tune by hand.

You need to change ur HorizSync N your VertRefresh. Here's a copy mah monitor's
HorizSync N VertRefresh There the ones that r uncommented. You might have to check
your monitors HorizSync N VertRefresh. to get the right setting.

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

Identifier "My Monitor"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

# HorizSync 31.5 - 50.0
HorizSync 30-70
# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

# VertRefresh 40-90
VertRefresh 50-140

EndSection