Monitor stuck on displayport with 640x480

Anonymous
2020-02-02T03:26:26+00:00

Hi all.. Today after I updated my surface pro, my monitor is stuck in a 640x480 resolution. Which is no good with a 49 inch Samsung monitor. If I plug in the HDMI, it works, but, resolution is not that good like it was on the Displayport. Any tips or tricks to get it working again? For some reason it shows 'Flat Panel, 640x480' when using display port, but the samsung drivers when using HDMI. 

I am using the surface dock as well. I tried the displayport of the monitor with other computers and it's working fine. Not with surface. Really need help with this one!

Surface | Surface Pro | Install and update

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  1. Anonymous
    2021-03-11T00:02:03+00:00

    Surface Dock 2 made no difference here... We were hopeful after being sold Dock V1 as compatible docks supposedly. I would say Dock V2 resolved some stability issues overall but we still had enough glitches that we don't see with any other brand of laptop that we have walked away from Surface.

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  2. Anonymous
    2021-03-10T18:49:34+00:00

    So the only unknown currently is whether a Dock 2 would solve the problem? (aside from fixed drivers)

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  3. Anonymous
    2021-03-08T22:00:23+00:00

    Good question, does anyone have a SP7+ and 1st gen brick-style Surface Dock to test?

    I have this combination, and I'm having the issue. I've tried a number of different graphics drivers including the very latest (at time of posting) which is 27.20.100.9168 but this issue persists. The issue only occurs for me with Dell monitors, as soon as I replace the one that is stuck at 640x480 with an HP the issue is resolved.

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  4. Anonymous
    2021-03-08T11:46:29+00:00

    Just for record, there are brightness and occasional gfx crash issues. Not sure if fixable with newer driver because it just make the external screen blank in my case.

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  5. Anonymous
    2021-03-06T17:42:37+00:00

    ok I will try - doubt that is of any help though. Amazing, a new laptop and it us unusable with external monitors. Maybe I should have picked a Dell :(

    Oh WOW - quick update - sorry maybe this has already been mentioned some wherein the 23 page post .

    I decided to actually use the virtual trouble shooting assistant. Didn't expect much. But when it suggested to press Win-P to open Presentation tab (when you can choose monitor), I chose 'second screen only', and wow, it shows correct resolution. I switch back the 'extended' and now I had all the monitors resolution options available.

    So, solution for me was to Win-P and then switch back.

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