2560x1440 on UHD Graphics 630 Dell 7770 A10

[Robert3]

I have a new Dell Optiplex 7770 A10 27" running UHD Graphics 630.  I need to run a screen resolution of at least 2560x1440 for development purposes... it doesn't appear on any of the selection lists.  Can you help me to achieve said resolution?  System details attached.

[n_scott_pearson]

Are you connecting to HDMI or DisplayPort?

Are you connecting at 60Hz or are you attempting to use 120Hz/144Hz? If so, try at 60Hz.

...S

[Robert3]

Hi Scott,

Thanks for responding... the machine is an all-in-one so I am not aware of the underlying 'plumbing'.  I had hoped there would be some really cool driver update as the whole setup is relatively new and a fairly high spec.  I'll give 60Hz a go...

Robert