Inconsistent LabVIEW UI Behavior with Multiple Monitors on Windows 10

Updated Oct 1, 2018

Reported In

Software

  • LabVIEW

Operating System

  • Windows

Other

Reported on high resolution monitors on computers running Windows 10.

Issue Details

I have a computer that runs Windows 10, and one of my monitors is a higher resolution than the others. When I run a VI on the high resolution monitor, everything works as expected. If the VI panel is dragged to any extended monitor, the LabVIEW panel UI behaves strangely. I experience the same behavior with just a blank VI on any extended monitor. Some of the things I see include:
  • Right clicking on the block diagram or front panel does not bring up the function or control palette. 
  • Clicking on any menu item highlights the item, but nothing pulls down, or the menu is offset, potentially even to another screen.
  • The cursor appears to be very small on the extended monitor while in LabVIEW.
  • The palettes in LabVIEW appear too large
All other applications behave correctly on my system. 

Solution

  • Check your magnification settings. Ensure that they are uniform for each of the monitors.
  • Right click on the LabVIEW icon, and then navigate to Properties » Compatibility. Select the "Override high DPI scaling behavior" or "Disable display scaling on high DPI settings" checkbox.
  • Set your DPI scaling to a lower value (for example, change it to 100% if you have it at 125%)

Additional Information

There is a known issue with versions of LabVIEW on Windows 10 where the UI will behave incorrectly when extended monitors are set to differing magnifications from the primary monitor. This can also happen if the primary monitor is a higher resolution than the extended monitors. 

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