Monitor stuck on displayport with 640x480

Hi Jeremy Pretty,

Thank you for reaching out Microsoft Community. We apologize for the inconvenience this may have caused. 

You mentioned that you are also using a Surface dock and the monitor's resolution is still stuck on 640 x 480 resolution. Well, I'd like to know if you also updated the firmware of the Surface dock and if you have tried disconnecting the monitor from the dock as well as from your Surface Pro 7. 

If you haven't disconnected it, you can simply do that but I would like you to clear the display cache first before reconnecting it again. To clear the display cache,  you can simply follow the solutions highlighted in this link: Troubleshoot Connecting To A Second Screen. See Solution # 5 to clear the display cache. 

On the other hand, I would like to know what kind of dock is it. See pictures below .

                           ![](https://learn-attachment.microsoft.com/api/attachments/8408fce4-989a-4efd-ab8b-3cb3de9bdb44?platform=QnA

If the one you're using the first one, then the issue you're now experiencing is due to compatibility issue but if it is the second one, then you'll need to make sure that the firmware of the Surface dock is up to date.

To update the firmware:

Click "Download" from this link : Surface Dock FwUpdate and install the Surface dock FWupdate. Disconnect/reconnect the monitor and see if this works right this time.

If this helps, please let our Community by marking this post as an answer. Otherwise, don't hesitate to respond to this thread for assistance.

Kind Regards,

Crest_Z

Same here, external monitor stopped working after the recent updates.

Works fine with other non-SP7 devices.

Cleaned the display cache, no go.

Tried removing the monitor in Device Manager, updating the monitor driver, still the same.

And yes, dock firmware is latest.

Cheers.

Have the second dock in the picture (made sure it was compatable when I got this Surface) and did hte firmware update and still the monitor is stuck in 640x480

Hi Jeremy Pretty,

Sorry for the delayed response.

Can you take a screenshot of the display settings of your Surface device please and include it in your next reply or include it in your feedback. 

If the option to change the resolution to recommended or other screen resolution options are being greyed-out, it would be best if you can send a feedback to our software engineers by sending a feedback to Microsoft using the Feedback Hub app to have it escalated.

Kind Regards,

Crest_Z

Here is what it looks like