Unable to control Sync Polarity dual-DVI ADD2 Q965 IEGD 6.1

Unable to control Sync Polarity dual-DVI ADD2 Q965 IEGD 6.1

Please Help!

I am using IEGD 6.1 drivers on a Portwell ATX which contains a Q965 chipset. Have a Wintec Dual-DVI ADD2 (2x SiI1364) card installed. I cannot seem to control the horizontal or vertical sync polarity, either by modifying the EDID or by customized DTD. No matter what I do I cannot seem to get negative polarity syncs. We are developing a custom 5" LCD which has a fixed frequency 640x480 31.5kHz 60Hz requirement.

Is it not possible to control the sync polarities using this config? I read that certain LVDS transmitterson SDVO had fixed sync polarity but have not seen anythingthat would cripplethis config. Thanks in advance...

Monitor
Windows description......... Plug and Play Monitor
Manufacturer description....removed
Manufacturer................removed
----------------------------
Plug and Play ID............removed
Serial number............... n/a
EDID data source............ Registry (stored)
----------------------------
Manufacture date............ 2006, ISO week 52
EDID revision............... 1.3
Display type and signal..... Digital
Sync input support.......... n/a
Screen size................. 100 x 70 mm (~5")
Power management............ Standby, Suspend, Active off/sleep

Color characteristics
Display gamma............... 2.20
Red chromaticity............ Rx 0.550 - Ry 0.340
Green chromaticity.......... Gx 0.310 - Gy 0.560
Blue chromaticity........... Bx 0.150 - By 0.170
White point (default)....... Wx 0.310 - Wy 0.360

Timing characteristics
VESA GTF support............ Not supported
Horizontal scan range....... 31-44kHz
Vertical scan range......... 50-76Hz
Video bandwidth............. 40MHz
Extension blocks............ n/a
Timing recommendation #1.... 640x480 at 60Hz
Modeline................ "640x480" 25.180 640 656 752 800 480 492 494 525 -hsync -vsync

Standard timings supported
640 x 480 at 60Hz -removed
640 x 480 at 60Hz - IBM VGA
640 x 480 at 67Hz - Mac II
640 x 480 at 72Hz - VESA
640 x 480 at 75Hz - VESA
720 x 400 at 70Hz - IBM VGA

Raw EDID base
removed

Display adapter
Adapter description......... Intel Corporation Q963/Q965 Embedded Graphics Controller Function 0
Adapter device ID........... 0x29928086
Display settings............ 640x480, 32bpp

User/computer information
Registered user name........removed
Registered organization.....removed
Network user name........... user
Network computer name.......removed
Windows version ............ Windows XP
Windows build .............. 5.01.2600 Service Pack 2
Installation date .......... 6/18/2007 12:00:00 PM

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