I need help with the proper config settings for VMMaker and my xm-2950 monitor. The monitor specs are: Auto Scan from
H: 15.5 to 50.5 kHz
V: 40 to 120 Hz
Resolution : 640x480 to 1024x768 @60Hz
Video 600 horzontal lines
RGB Horizontal: 800 lines/vertical: 600 lines
Retrace time : Horizontal: 4.2 usec
Vertical: 0.55 msec
I'm not sure about the porch values or the hsync and the vsync I'm guessing that is the retrace time?
This is a copy of a section of the VMMaker config :
; 2. MONITOR
; ----------
; Monitor Type. Valid types: D9800, D9400, D9200, EGA, VGA, MULTI, H9110, PAL, NTSC, GENERIC, CUSTOM
MonitorType = "GENERIC"
; Monitor CUSTOM. These values will be used if MonitorType = "CUSTOM"
;
; monitor_specs_0-6 = "HfreqMin-HfreqMax, VfreqMin,VfreqMax, HFrontPorch, HSyncPulse, HBackPorch, VfrontPorch, VSyncPulse, VBackPorch, HSyncPol, VSyncPol, ActiveLinesLimit, VirtualLinesLimit"
;
; * HfreqMin-HfreqMax: Minimum and maximum horizontal frequency, in Hz. Defines the range of horizontal frequencies the monitor is capable to sync.
; The higher the horizontal frequency, the higher the vertical resolution available for the same vertical refresh.
; The higher the horizontal frequency, the higher the vertical refresh available for the same vertical resolution.
; The higher the horizontal frequency, the lower the horizontal amplitude of active video (narrower picture).
;
; * VFreqMin-VfreqMax: Minimum and maximum vertical frequency, in Hz, Defines the range of vertical frequencies the monitor is capable to sync.
;
; * HFrontPorch, HSyncPulse, HBackPorch: Horizontal timing and geometry, values in µs
;
; * VfrontPorch, VSyncPulse, VBackPorch: Vertical timing and geometry, values in ms
;
; * HSyncPol,VSyncPol: polarities, not in use! defaults to negative.
;
; * ActiveLinesLimit: Vertical resolutions until ActiveLinesLimit value included, are generated as progressive, regardless the possibility
; of obtaining the required vertical refresh value.
;
; * VirtualLinesLimit: Vertical resolutions above ActiveLinesLimit and below VirtualLinesLimit are virtualized, that is, an interlaced resolution
; bigger that the native one is generated, with the right refresh, and "hardware stretch" is applied.
; Vertical resolutions above VirtulaLinesLimit are generated as interlaced, without any stretching.
monitor_specs_0 = "15625-16200, 49.50-65.00, 2.000, 4.700, 8.000, 0.064, 0.160, 1.056, 0, 0, 288, 448"
; Tolerance for horizontal frequency, in kHz, enables extending the range defined by [ HfreqMin, HfreqMax ]
; The resulting allowed frequency range will be [ HfreqMin - HfreqTolerance, HfreqMax + HfreqTolerance ]
HfreqTolerance = 0.010
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