Modifying the Mobile Intel 965 Express Chipset driver for Windows XP

by Jeremy Saunders on July 13, 2008

I wrote this article after experiencing screen resolution issues with my new Toshiba notebook that uses the Mobile Intel 965 Express Chipset.

I use an external ViewSonic VX2235wm monitor at home that requires a resolution of 1680 x 1050 to get the full windescreen experience with good colour and crisp text, and was disappointed when my new Toshiba Terca PTM90A did not support this, even with the latest Windows XP drivers installed.

After spending some time searching the web and reviewing many posts, I finally found the fix.

  1. Download the latest drivers in zip format from Toshiba’s web site. At the time of this posting the build was Although the drivers from Intel’s web site were a later build (, they would not install on the Toshiba 🙁
  2. Unizip the “” file.
  3. Edit the igxp32.inf found under the “\Display Driver\Graphics” folder as follows:
    HKR,, TotalDTDCount, %REG_DWORD%, 0
    HKR,, TotalDTDCount, %REG_DWORD%, 5
    HKR,, DTD_5,%REG_BINARY%, 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00 ;Fifth DTD
    HKR,, DTD_5,%REG_BINARY%, 79,39,90,40,62,1A,25,40,68,B8,3,00,00,00,00,00,00,1C,37,01 ;Fifth DTD
  4. Run setup.exe found under the “Display Driver” folder.
  5. Restart the computer when the installation has completed.
  6. You will now be able to set the resolution to 1680 x 1050 as per the following screenshot.


The 1680 x 1050 resolution has been available for quite some time now, as I’ve had the ViewSonic monitor for over a year. It’s pretty disappointing that Toshiba have not followed through and addressed this in the current driver set!

Jeremy Saunders

Jeremy Saunders

Independent Consultant | Contractor | Microsoft & Citrix Specialist | Desktop Virtualization Specialist at J House Consulting
Jeremy is a highly respected, IT Professional, with over 30 years’ experience in the industry. He is an independent IT consultant providing expertise to enterprise, corporate, higher education and government clients. His skill set, high ethical standards, integrity, morals and attention to detail, coupled with his friendly nature and exceptional design and problem solving skills, makes him one of the most highly respected and sought after Microsoft and Citrix technical resources in Australia. His alignment with industry and vendor best practices puts him amongst the leaders of his field.
Jeremy Saunders
Jeremy Saunders
Jeremy Saunders
  • Scott

    I am so thankful I stumbled across this fix in a Google search. I was fixing a computer for a customer who also had an Mobile Intel 965 Express Chipset based laptop (though my customer’s PC was an HP) that would not run at 1680 x 1050 on their external display. Other than a diffent extract location for the drivers files, and a different .INF file name for HP’s version of the Intel 965 Video driver, the exact same fix in the DTD section worked like a charm and got my client up and running at 1680 x 1050 on their HP LE2201w Monitor when nothing else I tried would work. Thanks Jeremy for this post!!!!

    • Jeremy

      You’re welcome Scott. Thank you for leaving feedback.

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