XPS 13 goes slow on large external display.

Question

I have an xps 13 connectted normally to a WD15 Del hub with a 20" external monitor on HDMIcable .

All work fine laptop responsive and fast.

When i go to a meeting room with a hub WD15 and same configuration but the monitor is a 52" (dell) the laptop just goes slow or sort of non-responsive.

e.g. double click a file ( word or excell) they will not open But right click and select Open it will.

In excell click a cell and nothing will happen.

I have changes everything including

swapping the HUb from my desk to the 52" screen,
change the mouse
changed the HDMI cable
net CAt6/6 cable

All with no improvement. All my drivers are up to date

any ideas on what could be impacting ?

jphughan · Answer

@Denis21  What are the resolution(s) and refresh rate(s) of the displays you're working with?  Physical size doesn't make a difference.  But resolution and refresh rate can.  And what specific XPS 13 generation do you have?  The exact model would be something like XPS 13 7390, or 9300, or 9310.

ejn63 · Answer

Which model XPS 13? 9330, 9343, etc.?

XPS

XPS 13 goes slow on large external display.

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