Forum Discussion

HemlockMachines's avatar
HemlockMachines
Reel Rookie
3 years ago

HDMI out from laptop will not duplicate display, only extend as a second monitor

Two days ago our Roku TV would duplicate my laptop screen just fine, but now it can only extend the display as if the Roku TV is acting as a second monitor to my laptop. I have tried changing HDMI ca...
renojim's avatar
renojim
Community Streaming Expert
3 years ago

If you search the Internet for "windows can't duplicate display" you'll find plenty of people with the same issue you're describing going back years.  I don't think it's the TV, although I did find one person that had to turn off "theater mode" on his Sony TV to get his display to duplicate, so I suppose it's possible that there's a TV setting that affects it.

HemlockMachines's avatar
HemlockMachines
Reel Rookie
3 years ago

I can hook my laptop to other TVs and monitors that are not the Roku TV and they work just fine, it's only when I try to hook my laptop to my Roku TV that this issue happens.