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Dell Optiplex 9020 4k Polaroid TV mouse lag

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Hello Spiceworks, new guy here.

I've got a user with a new Polaroid 43" 4K TV as his display. Upon installing the new TV, the mouse began to lag, there was no lag before, so I assume its an issue related to the TV.

When I say lag, I mean there is a half second delay between moving the mouse, and the courser moving.

The TV only has 3 HDMI inputs, I've tried all 3 with 2 different HDMI cables.

The desktop has 1 VGA and 2 DisplayPort outputs, I've tried both DP outputs.

I'm using an HDMI to DisplayPort adapter on the desktop side.

All drivers are updated. I've tried several different mice with higher DPI. I even rebooted the computer and I'm still at a loss.

Maybe the desktop cant handle the output?

Help

Specs Below

Display

Polaroid

Model No: 43GSR4100KL

Summary

Operating System

Windows 7 Professional 64-bit SP1

CPU

Intel Core i5 4590 @...


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