Help: How do I force 1280x768 on my (old) LCD

[pdemaio]

I have a 965 integrated graphics with a projector attached viaHDMI ona prolink card. I actually don't think it the connectivity matters and the real issue is that the DTD derived from the EDID is wrong. it only will go up to 1024x768, but I need to get to the native resolution of 1280x768 at 30 or 60 hz! Here are the DTD's I have:

DTD_1
01 1d 80 18 71 1c 16 20 - 58 2c 1a 00 00 00 00 0000 86 37 01

DTD_2
01 1d 80 d0 72 1c 16 20 - 10 2c 1a 80 00 00 00 00 00 86 37 01

DTD_3
01 1d 00 bc 52 d0 1e 20 - b8 28 25 40 00 00 00 0000 04 37 01

DTD_4
01 1d 00 72 51 d0 1e 20 - 6e 28 25 00 00 00 00 0000 06 37 01

DTD_5
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 0000 00 00 00

Any help would be awesome!

Pasquale

[Intel_C_Intel]

Which monitor are you running? Are you sure it can do 1280x768 over HDMI? Some can't, even if it's the correct resolution. What is the EDID?

[pdemaio]

It's a Sanyo Z2 projector. It's native resolution is reproteed as 1280x720 on the web, but I believe it's actually 1280x768.

I'm running the HDMI out through a DVI adaptor. I've run this monitor at this resolution from and XBox on HDMI and from a PC and Xbox on VGA. For the PC I used powerstrip to tun it and it seemed to make my PC unstable, so I'd prefer not to run it again (I could never figure out how to get Powerstrip to output a new montiro .inf). It doesn't support HDCP, so I can't try it with a PS3 :-(

Any hellp is appreciated.

[pdemaio]

OK, I got this to work!
I went to KEY_LOCAL_MACHINESYSTEMCurrentControlSet and found my display settings. There were here in my case:
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E968-E325-11CE-BFC1-08002BE10318}�000], but for others I would suggest
searching under KEY_LOCAL_MACHINESYSTEMCurrentControlSet for TotalDTDCount

There I found my seetings were (amoung many other settings):

"TotalDTDCount"=dword:00000001
...

"DTD_1"=hex:01,1d,80,18,71,1c,16,20,58,2c,1a,00,00,00,00,00,00,86,37,01
"DTD_2"=hex:01,1d,80,d0,72,1c,16,20,10,2c,1a,80,00,00,00,00,00,86,37,01
"DTD_3"=hex:01,1d,00,bc,52,d0,1e,20,b8,28,25,40,00,00,00,00,00,04,37,01
"DTD_4"=hex:01,1d,00,72,51,d0,1e,20,6e,28,25,00,00,00,00,00,00,06,37,01
"DTD_5"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

I chagned it to:

"TotalDTDCount"=dword:00000006
....

"DTD_1"=hex:01,1d,80,18,71,1c,16,20,58,2c,1a,00,00,00,00,00,00,86,37,01
"DTD_2"=hex:01,1d,80,d0,72,1c,16,20,10,2c,1a,80,00,00,00,00,00,86,37,01
"DTD_3"=hex:01,1d,00,bc,52,d0,1e,20,b8,28,25,40,00,00,00,00,00,04,37,01
"DTD_4"=hex:01,1d,00,72,51,d0,1e,20,6e,28,25,00,00,00,00,00,00,06,37,01
"DTD_6"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"DTD_5"=hex:01,1d,00,bc,52,d0,1e,20,b8,28,25,40,00,00,00,00,00,04,37,01

And that added all the settings to my graphics control panel I was looking for. In retrospect, I suspect you probably only have to change "TotalDTDCount"=dword:00000005 but I'm not planning to go back and check since I have it working now.

BTW The Z2 only seemed happy with 1280 by 720 not 1280 by 768.

[pdemaio]

OK, it's wokring, but there is noticeable green hue to everything. This doesn't happen with the xboxand I can't adjust it away with the PC or the Projector settings. The output on the VGA (clone of the HDMI) isn't green. Anythoughts?

[pdemaio]

after a couple of reboots, the problem resolved itself. I didn't change anything. It just went away. and

Hopefully it doesn't come back.