>>>>> "lukekendall" == lukekendall <[EMAIL PROTECTED]> writes:
lukekendall> I have a spiffy new monitor that is capable of doing
lukekendall> [EMAIL PROTECTED] and even [EMAIL PROTECTED], but the modes
lukekendall> don't seem to be recognised. The closest I get is:
lukekendall> Is there an X11 modelines calculator that you can feed
lukekendall> the specs of the display modes into, to get correct
lukekendall> modelines to add in manually? I confess that the
lukekendall> description in the howto either leaves some terms
lukekendall> undefined, or else the failing is with me and I just
lukekendall> can't wrap my head around how to calculate it manually
lukekendall> from the info I have in the vendor's specs.
It's not actually that hard to calculate the modeline.
You need to know the maximum clock frequency and vertical refresh
frequency of your monitor, and the minimum vertical and horiz sync
times.
Then the modeline is in two halves -- horizontal and vertical.
I usually use the new format now.
Then your modeline will be something like:
Mode "1920x1440"
DotClock 300 # Max frequency
HTimings 1920 Hxxxx Hyyyy Hzzzz
VTimings 1440 Vxxxx Vyyyy Vzzzz
EndMode
where Hxxxx is 1920 plus how many dot clocks after the scan before
the horizontal sync pulse, Hyyyy is Hxxxx plus the Hsync width divided
by the dot clock, and Hzzzz is the total time for each horzontal scan.
Vertical timings are similar.
Anyway, the standard VESA GTF timings for 1920x1440 are close to:
Mode "1920x1440"
DotClock 341.35
HTimings 1920 2072 2299 2656
VTimings 1440 1441 1444 1512
Flags "-HSync +VSync"
EndMode
And for [EMAIL PROTECTED] they are
Mode "2048x1536"
DotClock 340.5
HTimings 2048 2216 2440 2832
VTimings 1536 1537 1540 1603
Flags "-HSync +VSync"
EndMode
You can tweak them a little if you need to.
--
Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au
The technical we do immediately, the political takes *forever*
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