Display resolution locked at 640x480

[Aeroldoth]

I've been using my p7-1126s computer with an nvidia 7600GT video card for years, and all was well.  Recently, I wanted to try the graphics ability of the AMD A8-3800 apu with radeon 6550D graphics.  I got a single link DVI-D cable and attached it to my Dell IN2030M monitor.  However, when I boot up, the display is locked at 640x480 resolution, the change tab is grayed out, and the monitor is detected as a "generic non-pnp monitor".

I've never updated the apu since I bought it 5 years, but I did so now.  I went to AMD and updated the graphics drivers.  I went to HP and updated the Support Assistant and the updates it offered.  I went back to AMD and even updated the chipset drivers.  And of course I'd already checked for any windows updates.

After installing everything it actually booted up in normal resolution.  I used the computer for a few hours and then shut it down.  When I booted up again today it was back to 640x480.  I tried everything I could think of to fix it, but nothing worked.  I then did a system restore before all the updates and went through it all again.  This time, it didn't work.

Still locked at 640x480.

I found a google cached HP page here:

http://webcache.googleusercontent.com/search?q=cache:8EYjLfkOO4wJ:support.hp.com/in-en/document/c031...

...which says:

When computers with early versions of Hibiscus or Holly motherboards are connected to certain 20-inch monitors using the onboard DVI-D port, the screen resolution may default to 640 by 480 with no option to change it.

If your computer has a Holly or Hibiscus motherboard and you cannot change the display resolution to a setting other than 640x480, Contact HP (in English) to see if your computer requires service.

When I try to contact HP I only get a blank page.  I've found quite a few posts on this, but they're all several years old.  Has HP fixed the problem and I just can't find it, or have people given up?

[banhien]

Hi,

After 5 years, you may have to pay to contact HP. But before that, please go to the following link to download driver from Dell then install to your computer

     http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=4Y0K6

Hope the monitor name will appear for you to select and this will give the right resolution.

Regards.

[Aeroldoth]

I've already installed that driver for the monitor, but thank you for looking for that file. : )