On Sunday 07 March 2004 16:03, Pieter Hulshoff wrote:
> Try adding doublescan at the end of that modeline, and doubling the
> clockpitch:
> Modeline "336x240@60" 12.88 336 368 392 424 240 245 248 253 doublescan
> That should do the trick, but be careful to avoid damaging your monitor.
> The modeline above is similar to what is used in the xmame modeline
> examples, just a slightly lower clockpitch (12.88 vs 18.00).
well if I doublescan, i'll have a +- 31Khz horizonal frequency, my monitor is
an arcade monitor and does use an horizontal frequency of +- 15Khz
Here are the specs:
HORIZONTAL VERTICAL
Scan Frequency: 15.72 KHz Scan Frequency: 60.0 Hz
Scan Period: 63.6 µSec Scan Period: 16.7 mSec
Active Video: 46.9 µSec Active Video: 15.3 mSec
Video Delay: 11.9 µSec Video Delay: 1.2 mSec
Sync Pulse: 4.7 µSec Sync Pulse: 0.2 mSec
Scan Line: 456 Pixels Screen: 262 Lines
Resolution: 336 Pixels Resolution: 240 Lines
Clock Freq: 7.16 MHz
So, the doublescan modeline will work on a standrad vga monitor but not on my
arcade monitor.
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