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Telling GroovyMAME not to tweak existing modelines

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Calamity:
Well, the interesting values are shown in the geometry menus (the ones in miliseconds and microseconds). There's a dotclock value that's necessary too for those modelines to be complete. Anyway I'll have a look...

EDIT: Your monitor seems to require a long horizontal sync pulse. Try using this line:

monitor_specs0 15625-16200, 49.50-65.00, 2.000, 4.900, 8.000, 0.064, 0.160, 1.056, 0, 0, 288, 448

mazinger-z:
Thank you very much. Just for confirmation, I wrote all the values down. Here they are:

Old mode (didn't work, vertical waves on screen):

--- Code: ---[Xres] [Yres] [V (Hz)] [H(kHz)]
  240    240   60.000   15.660
Lock vfreq      [ yes]
DotClock        [ 5.01 MHz(5011235)]
H resolution    [ 240 px][   47.89 us]
H retrace Start [ 256 px][   51.09 us]
H retrace End   [ 280 px][   55.87 us]
H total         [ 320 px][   63.86 us]
V resolution    [ 240 ln][15325.56 us]
V retrace Start [ 242 ln][15453.28 us]
V retrace End   [ 245 ln][15644.85 us]
V total         [ 261 ln][16666.55 us]
interlaced      [  no]

Horizontal geometry

H center        [5/7]
H active        [  30 ch][   47.89 us]
H front porch   [   2 ch][    3.19 us]
H sync pulse    [   3 ch][    4.79 us]
H back porch    [   5 ch][    7.98 us]
H blanking      [  10 ch][   15.96 us]
H total         [  40 ch][   63.86 us]

Vertical geometry

V center        [16/18]
V active        [ 240 ln][15325.56 us]
V front porch   [   2 ln][  127.71 us]
V sync pulse    [   3 ln][  191.57 us]
V back porch    [  16 ln][ 1021.70 us]
V blanking      [  21 ln][ 1340.99 us]
V total         [ 261 ln][16666.55 us]
--- End code ---

New mode:

--- Code: ---[Xres] [Yres] [V (Hz)] [H(kHz)]
  240    240   59.990   15.657
Lock vfreq      [ yes]
DotClock        [ 5.26 MHz(5260894)]
H resolution    [ 240 px][   45.62 us]
H retrace Start [ 264 px][   50.18 us]
H retrace End   [ 288 px][   54.74 us]
H total         [ 336 px][   63.87 us]
V resolution    [ 240 ln][15328.19 us]
V retrace Start [ 242 ln][15455.93 us]
V retrace End   [ 245 ln][15647.53 us]
V total         [ 261 ln][16669.41 us]
interlaced      [  no]

Horizontal geometry

H center        [6/9]
H active        [  30 ch][   45.62 us]
H front porch   [   3 ch][    4.56 us]
H sync pulse    [   3 ch][    4.56 us]
H back porch    [   6 ch][    9.12 us]
H blanking      [  12 ch][   18.25 us]
H total         [  42 ch][   63.87 us]

Vertical geometry

V center        [16/18]
V active        [ 240 ln][15328.19 us]
V front porch   [   2 ln][  127.73 us]
V sync pulse    [   3 ln][  191.60 us]
V back porch    [  16 ln][ 1021.88 us]
V blanking      [  21 ln][ 1341.22 us]
V total         [ 261 ln][16669.41 us]
--- End code ---

Calamity:
Thanks, that must have been a lot of work.

Well it seems I was wrong and your monitor prefers a sync pulse of 4.56 instead of 4.79 and a front porch of the same size. So the line should be something like this:

monitor_specs0 15625-16200, 49.50-65.00, 4.560, 4.560, 8.000, 0.064, 0.160, 1.056, 0, 0, 288, 448

Anyway, try carefully tweaking the H-phase potenciometer of your monitor, just in case, as 4.79 shouldn't be a problem at all.

mazinger-z:

--- Quote from: Calamity on January 28, 2012, 05:56:39 am ---Thanks, that must have been a lot of work.

--- End quote ---

Thank you, of course!  :notworthy:

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