Hello,

I installed a fresh Pi OS on my Raspberry Pi 4 4GB an run Steam link.
The problem ist after I startet the app on the Pi it run on full screen on my TV. But after I connected to my PC the pi shows me only the desktop (desktop from the pi).
On my PC Monitor it shows me everything I shut see on the TV.
The input from the controller works fine.

Funny thing I did this 2 times every time the same issue.
But on my Pi3B+ it worked fine (last time I did it on pi3 was last Wendsday).

I need to run it on the pi 4 because the pi3 can't output audio over HDMI.

Is there any solution for my problem?
Have anyone the same problem?

PS: I have updated pi to the latest version (apt-get update & & apt-get upgrade)

Sorry for the bad English skills