Windows 7 - Force DVI/HDMI resolutions and refresh rates

No matter to move up to another resolution because I'm using this display only for q3 gaming , where 800x600@125 with FSAA, anisotropic & vsync is enough for me. I think patchers are not needed, custom resolution will work perfectly in my case. Thanks a lot, again.

Anyway, again bobdynlan, thank you very very much for you time, it really helps people here /love

I've spent a few days literally trying everything with absolutely no success... Every drivers I create give the same result : out of sync on VGA input

I've nothing in my ATI Catalyst drivers options to help this problem... so... I tried powerstrip... and it worked !
I've add a fully custom resolution through Powerstrip (with front porch, polarity, etc.) and it worked on the first try. Unfortunately, everytime I reboot I get out of sync, i need to switch to another screen, reload the profile, and switch back to my TV... It sucks, but it's still a great leap forward !

I'm gonna retry having only one detailled setting in my EDID > Inf... I don't understand why it doesn't work >_<

In powerstrip, i've got two additionnal parameters when adding a custom resolution : horizontal and vertical refresh rates
There is nothing like that in the EDID, is it the key to my problem or... not... ?

Ok, so I just noticed a little imperfection. Phoenix only allowed me to create an INF file with 1368 as a horizontal resolution, which translates to a vertical resolution of 769 in 16:9 ratio. That's actually ok because the nVidia Control Panel let me create a custom resolution of 1366x768. However, when I reboot, the resolution of my desktop changes back to 1368x769. This isn't a huge deal as I only lose 2 pixels horizontally and 1 pixel vertically, but I'm just wondering why the custom resolution I set doesn't stick after a reboot? Again, I'm running Windows 7 Pro with an nVidia 6200 with the latest 191.xx drivers.

True, in Standard Timings you cannot deviate from the... standard, but in Detailed Timings you can create a mod for the 1366x768 res that will help with your custom resolution sticking after reboot (Example: 85.25 1366 418 72 136 - 0 n 768 30 3 10 - 0).

Why? It's 100% panel manufacturer's fault. A display should be able to receive data from the VGA adaptor at least in the basic form of representation by using device fonts i.e. characters. The standard is to have 8 pixels per character. So the horizontal resolution (width) must be dividable by 8. Another rule is that there is a fixed number of lines in the vertical resolution (height) for the given aspect ratio, you cannot have 768.375 lines.

1366x768 breaks both rules. 1368x769 follows the first one but breaks the second one, and 1360x765 follows both rules.
For purists, 1360x765 and 1:1 (few black lines) gets the correct image. Other then that you will get slight scalling and/or bad aspect ratio. Plus, Windows does not play well without rule one (but a defined Detailed Timing in the EDID and Preferred timing mode checked helps).

I repeat: You should have that "Reduce DVI frequency at high resolutions", like on the picture in the previous post but only if you use DVI (hence, the name) and that would be the proper key to your problem. Shame on ATI, seems there are many issues with it, search for "catalyst" and "reduce DVI frequency" for more help.

PowerStrip's custom resolution works as a limited solution because it lacks precision (you can only input integer values), but as you found out, it needs additional data. Lucky you, I've updated PED Helper to provide that info, too.

Wow, this really helped some more. I tried out the detailed timing numbers you gave me and now I have exactly 1366x768 pixels, no missing 2 horizontal and 1 vertical pixel anymore. I don't quite understand the timing numbers you gave, but apparently they work fine for a Sharp LC37D5U. I'll have to do more research on those timing numbers in the meantime. But big ups to you, thanks!

For future reference on non-standard resolutions:
* Input the refresh rate: 60 (this example).
* Input the horizontal resolution: 1366 (this example).
* Choose the aspect ratio: 16 / 9. (this example).
- 1360x768 timing returned by PED Helper.
- Deviation from requested: -6 (pixels). [If deviation=0, it's a standard resolution ]
- Horizontal size is not a multiple of 8 pixels!
- Timing data: 84.75 1360 416 72 136 - 0 n 768 30 3 5 - 0

* Try the closest Horizontal resolution that is a multiple of 8: 1368.
- 1368x769 timing returned by PED Helper.
- Deviation from requested: +1 (lines).
- Aspect ratio is not 16:9 as requested!
- Timing data: 85.25 1368 416 72 136 - 0 n 769 30 3 10 - 0

* First result does not cover the requested resolution and does not follow rule one.
Second result covers the requested resolution and follows rule one, so we choose it for reference.
- Reference timing data: 85.25 1368 416 72 136 - 0 n 769 30 3 10 - 0

* We need to mirror the H/V Active Pxl and H/V Blank modified values so that Sum(H/V Active Pxl + H/V Blank) remains the same.
- H Active Pxl adjustment from 1368 to 1366 = -2
- H Blank adjustment from 416 to 418 = +2
- V Active Pxl adjustment from 769 to 768 = -1
- V Blank adjustment not needed when the deviation is 1.
- Final timing data: 85.25 1366 418 72 136 - 0 n 768 30 3 10 - 0

Hi,

under WXP I was able to set 1366x768 through custom resolution. Under Windows 7 it says that the resolution is not supported. Even with Powerstrip I couldn't force it. Now i wanted to edit the EDID, but when I want to select my monitor/TV (Toshiba 32 AV 500 LCD) in Phoenix there are NO entries.
http://i41.tinypic.com/2dmbnnn.jpg

Anyone knows how to fix this?

Furthermore I CAN select 1366x768 by default, but it is a 1080i resolution, supporting only 30hz or less. Any way to force 50hz there?

Follow this extended guide
From it:
II. Dump the monitor's EDID (extended display identification data).
Get softMCCS from entech. Select your monitor's name. File -> Save EDID as... and choose Save as type Raylar EDID file (*.dat).

I have somewhat choppy video on all 4 of my monitors. Windows 7 version 7600, nvidia 6200 driving 2 monitors and motherboard intel 965g driving the other two. Other than the extremely thorough and time consuming fix offered here, is there any other hope for us - is there any fixes we are waiting on? Is going through all the above steps on all my monitors guaranteed to work?

Thanks for the hint. Now I got the .dat file. But, when I want to specify a Timing by entering 1366 at the "H. active pixels" box, it automatically switches back to 1360! Also I does not let me enter a refreshrate below 61.