V-Ray RT Error "using GPU device with display attached for rendering. UI might be s"

[stevejjd]

Hi,

I'm getting an error message "using GPU device with display attached for rendering. UI might be sluggish"

I am using a computer monitor attached with a HDMI cable, why is this warning me? what is it trying to say?

I'm using RT3.40.30

If you are able to help me understand and fix the error I would appreciate it a lot.

[Raph4]

You see this because for rendering you use your default graphic card and If I remember right, you see this message only with Active Shade.

It's not one error, just little warning. The message explain if you use default graphic card for rendering, GUI become slow.
Exemple: you can't use other software at the same time, or mouse lagg... etc.

[stevejjd]

Thanks for helping me out. I got it.