Can someone help me show me how to duplicate my screen in Linux?

[TimeForWasp]

Originally Posted by Fish

You're trying to mirror what's on your laptop screen to your TV using HDMI? Sounds like it's using your TV as an extended background instead of a mirrored display. Does it work when you directly connect your laptop to the TV using HDMI? I'm not familiar with the HDMI extender you're using, but have you verified that it's even possible with Linux? What Linux distro?

I am sure it does with a straight hdmi cable. I am trying to set up the wireless extender to get rid of the cables.

I am using Kubuntu linux

and I think you are right that it is using my tv as an extended screen. I slide my mouse off the end and it comes up on the tv . I am close here, just need a setting change of some kind