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Thread: 800x480 on intel 945GM/GMA950 - is it possible?

  1. #1
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    800x480 on intel 945GM/GMA950 - is it possible?

    I have had this resolution working beautifully on an intel 855 board thanks to the embedded drivers and this post.

    Unfortunately, I upgraded and the reg tweak with the embedded drivers is no longer doing the trick! Allegedly the newest version of Powerstrip finally allows custom resolutions on the intel GMA drivers, but I don't want to drop $30 just for this fix, especially if it may not work.

    Does anyone have this working or have free a solution to get this combo to work?

    Edit: I am now on a GME965 board using a Xenarc 700TSV LCD. I created these custom drivers using IEGD 10.3 and the Xenarc DTD settings. These are untested, but should work.

    To install, download the file, go to the IEGD_10_3_Windows -> Utilities folder and run setup.exe. Once installed, right click on your destop and open Display Properties -> Settings -> Advanced -> Display Config and change the resolution to 800x480. Hopefully these work.
    Audio: 4 * Rainbow Audio Germs + Infinity Basslink / Case: iStarUSA S3 / CPU: C2D P8700 / MB: Jetway NC64-LF / SC: ASUS Xonar Essence STX / RAM: Crucial 2x1GB 1066MHz / HD: MTRON 2.5" 30GB / DVD: Panasonic UJ-815B / PSU: Opus 180w / LCD: Xenarc 700TSV

  2. #2
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    Yes, it's certainly possible, at least with XP, and using the Intel Embedded Graphics Drivers (IEGD 6.1) package builder referenced in that post.

    The driver package won't work as-is because the GUID was built for the 865 graphics, and the 945's graphics use a different GUID.


    You're using XP, right?

    I'm not entirely sure that the IEGD driver tweaks would work on Vista at this point..

  3. #3
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    Here you go:

    http://moschini.org/945GM-800x480.zip


    This is a custom-built driver package for Windows XP, using the IEGD 6.1 configuration editor.

    It is configured with one custom EDID for 800 x 480 on the Analog VGA port, and should use 800 x 480 x 32 bits by default.

    Extract the package, go into the Utilities folder, and use the Setup.exe program to install the drivers.


    Oh, and it couldn't hurt to uninstall any other video driver packages you see in the Add/Remove Programs control panel before you do this..


    Let me know how it works!

  4. #4
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    Now don't take this the wrong way... but I love you man!!! It worked. Seems like you have been all over this 800x480 mess. I tried three different version of the embedded drivers and countless other tricks, but had no luck with anything else. Even tried using the SDK to build a 6.1 embedded install with the Xenarc timings, but there were so many pages of options I am not surprised I screwed up.

    So thanks!
    Audio: 4 * Rainbow Audio Germs + Infinity Basslink / Case: iStarUSA S3 / CPU: C2D P8700 / MB: Jetway NC64-LF / SC: ASUS Xonar Essence STX / RAM: Crucial 2x1GB 1066MHz / HD: MTRON 2.5" 30GB / DVD: Panasonic UJ-815B / PSU: Opus 180w / LCD: Xenarc 700TSV

  5. #5
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    Glad to hear that it worked.

    The timings are a little bit tricky, as are the options..


    And I think I may be able to achieve the same custom EDID setting for the Vista drivers.

    It requires editing the .INF file for the Intel graphics Vista driver package, specifically the "NonEDIDMode_AddSwSettings" setting section.


    I may also be able to enable 800 x 480 on LVDS on Intel video without having to use a custom BIOS.. it's one of the things I'm going to test on Vista this week after I receive my LVDS cable.

  6. #6
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    Can't seem to install on my system. All I get is:
    "All the components are not installed correctly. Please try installing again."

    Then I looked into the Drivers folder and found only 17 files inside. The ZIP I got is 925K. Is this correct?

  7. #7
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    925k is right..

    What chipset is it?

    Did you install the chipset drivers from Intel? may be required..

  8. #8
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    The chip is Intel 945G. Any way you can make a customized driver that supports these resolutions?

    800x500
    1024x640
    1280x800
    1440x900

    Thanks.

  9. #9
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    Ah, there's the problem.. the 945G chipset is different from the 945GM chipset.. I didn't build support in for that chipset, only the 945GM.

    I can fix that..


    And yes, I can build a driver with those resolutions.


    Here's the 9-10 different fields of information I need:


    The Horizontal Active and Vertical Active are easy - that's the resolution.

    The other details, sync offset, pulse offset, etc, are different for each resolution.



    If you have those details already, great - PM me with the details.

    Otherwise I'll hunt around and find the right timings.

  10. #10
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    Giuliano, thanks so much for your efforts concerning this, I have the same problems associated with the 945GM and the Xenarc.

    One question: With the timings set correctly and the Xenarc outputting native rez, will it be in the proper aspect ratio (16 X 9)? I'd almost rather go with 1280 X 720 or some such if I could get proper aspect out of it and not have to see stretching/multiple re-sizes for picture viewing/movie watching.

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