1600x900 resolution suddenly not available.

[David1211]

My HP system has worked flawlessly for about 5 years.  A few days ago I came in to find the display had changed to 4:3 aspect ratio.   I have tried everything suggested on this forum but no luck changing it back.

PC: HP Pavillion p6000  (model p6754y) w/8 gig ram.

Monitor: HP S2031   (Product # WJ676A)  Connected by DVI.

OS: Windows 10 Home. 64 bit.  (Version 1703  OS Build 15063.726)

When trying to change the resolution on Settings/Display , these three are the only options available:

1280 x 1024

1024 x 768 (recomended)

800 x 600

So far I have tried:

1.  Updating drivers for the display adaptor and the monitor in device manager.  Always says they are up to date.

2.  Deleting drivers and rebooting.

3.  Did a hard reboot-power disconnected for 5 minutes.

4.  Reset bios to defaults.

5.  Tried to add the monitor to HP Support Assistant but it would not auto detect and would not recognise the produt/serial number i entered.

6.  Tried to find new drivers but HP does not supply video drivers for windows 10.

7.  Ran windows update.

8.  Attemted to use the monitor menu but found nothing that helped.

What do I try next?

[David1211 · Accepted solution]

Problem seems to be solved.

I deleted the display adaptor and rebooted.  Now 1600 x 900 resolution is available.

Im sure I did this several days ago, but for some reason it worked this time.

[malmcomm]

I have the same exact problem you do and it just started today. I tried your fix with deleting the display adaptor but it did not work. Any other ideas? Thanks.

[David1211]

Malmcomm.  Sorry but I have no idea why it worked this time.  The only difference I can recall is that I did it by left clicking on the device and selected uninstalled from the context menu instead of right clicking and using the popups.  It shouldnt make a difference but maybe it does.

Other than that see the list of things I tried in my original post.

Good luck.

[malmcomm]

Unfortunately, I had tried all the same things you listed and none of it helped. It looks like the display adapter (ATI Radeon HD 4300/4500) is not supported by Windows 10 although it had worked fine for months.

http://support.amd.com/en-us/kb-articles/Pages/Win10-Driver-Support.aspx

[David1211]

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@malmcomm wrote:

Unfortunately, I had tried all the same things you listed and none of it helped. It looks like the display adapter (ATI Radeon HD 4300/4500) is not supported by Windows 10 although it had worked fine for months.

http://support.amd.com/en-us/kb-articles/Pages/Win10-Driver-Support.aspx

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For what its worth, my display adaptor is listed as "ATI Radeon HD 4200" in the Device Manager.

[malmcomm]

I deleted the display adapter again last night before shutting down. This morning it all looks normal again! We'll see if it stays that way. Very strange. Thanks for the tip, it took several tries but seems like it worked.