Htimings and Vtimings Parameters

[Alex Deucher]

On Tue, Jul 28, 2009 at 5:20 PM, Austin Howard<austinghoward at gmail.com> wrote:
> I need to know what the parameters to HTimings and VTimings mean, and
> how to determine the correct values for these. Using Modes "1280x1024"
> in my Screen section and Display subsection, causes an error saying that
> particular mode is not found. Upon reading the manual I learned I could
> manually specify that mode in the Monitor section in the Mode portion.
> Which as you know requires the HTimings and VTimings arguments. The
> parameters hsyncstart, hsyncend, htotal and the vertical equivalents are
> unclear to me.

Probably easiest to use a utility like cvt or gtf to generate a modeline:

$ cvt 1280 1024 60
# 1280x1024 59.89 Hz (CVT 1.31M4) hsync: 63.67 kHz; pclk: 109.00 MHz
Modeline "1280x1024_60.00"  109.00  1280 1368 1496 1712  1024 1027
1034 1063 -hsync +vsync

Alex