Solved

Display Resolution stuck at 640x480

Posted on 2009-05-08
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Last Modified: 2013-11-08
I am having the same problems as identified in another article

Windows XP display resolution popping back to 640x480 every time I change it at https://secure.experts-exchange.com/index.jsp?srid=/e%2B8LT0zV9Ma9BTBJYPwbw%3D%3D&redirectURL=/OS/Microsoft_Operating_Systems/Windows/XP/Q_24188329.html&rsid=20

I am using Windows XP version 3.

I have a NVidia display adapter 9600 GEforce installed on a PCI express slot.

I also have on board video using Intel

I can run one or the other

Both are stuck at 640 by 480.  

I have re installed drivers.

My computer service center tells me I need to wipe and reload windows xp.

I understand from the above article that if I do that it still might not work.

I need some guidance as to where to go from here. I would rather not re install xp.

I would like to find the corrupt file or registry entry that is causing the problem and repair it.
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Question by:a7a95805
7 Comments
 

Expert Comment

by:dpm2009
ID: 24338283
Have you confirmed that there is not an issue with the monitor itself?  Possibly not being able to handle a larger resolution?  

Monitor Drivers?
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LVL 9

Expert Comment

by:wellhole
ID: 24338347
Did your driver come from nvidia.com? They typically will have newer drivers than your cd or from windows update.
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Expert Comment

by:mrpinkdonttip
ID: 24338348
I would also verify that the Monitor is set up correctly. Try doing a google search for "monitor .inf (your monitor model number)" and see if there is a special driver from the manufacturer you can download. I would also try removing whatever monitors are listed in device manager and clicking "scan for hardware changes" to reinstall. The fact it is happening to both your on board and add-in video almost certainly means a monitor issue. Good luck
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Expert Comment

by:b0jengles
ID: 24339273
I would remove all drivers from the system with something like
http://www.download3k.com/Install-Driver-Cleaner-Professional.html
Also turn off the onboard video though the bios on the machine so that you are only using the video card then reinstall with  the correct video drivers from nvidias or dells or whomever the manufacture on the PC's website.
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Author Comment

by:a7a95805
ID: 24342125
Thank you all for your suggestions. Here is my reply.
1. I am using a Samsung Monitor 275T. 1900 by 1200 is native resolution.
2. I have downloaded the latest drivers from Nvidia.
3. I have used Driver Cleaner to remove all Nvidia drivers. (Although some keep reappearing in System 32  even after I turn off System restore.)
4. I reinstalled the latest drivers.
5. I searched the web high and low. The article that most describes what I am experiencing is at the link above. Please read it before you reply so you are familiar with my problem.

Any other thoughts.

My system tech guy says it is something in the system files that is the problem. That is why he is recommending a wipe and reinstall. I just don't have the time to re install everything.

Thanks for your help!
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Accepted Solution

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a7a95805 earned 0 total points
ID: 24360773
So I have solved this problem. I had help from this link. http://www.experts-exchange.com/Hardware/Components/Video_Cards/Q_24334658.html

Here is the reason I was having this problem. from Microsoft Knowledge base.

"If Windows detects that the video card is unable to display in the resolution selected, Windows defaults to 640 x 480 resolution. Windows does this as a safety measure to prevent the system from starting up with an unreadable image on the display."

I followed the directions in the link above to update my registry with the default settings for the monitors.

"HKEY_CURRENT_CONFIG\System\CurrentControlSet\Control\VIDEO\{overwrite long hex number here}\0000]" where long hex number is the id for the NVIDIA display adapter.

Problem was that I needed to add the default settings for monitor as well

"[HKEY_CURRENT_CONFIG\System\CurrentControlSet\Control\VIDEO\{overwrite long hex number here}\0000\Mon11335587]"  

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