I tried OBS and it works great without paying much attention to the setting details.
Thanks for the hints.

Yeah, you can find it in the ingame graphics settings. There is a button "Broadcast" where you can set your login data and basic settings for the stream. It's quite handy if you just wanna twitch to a friend without installing extra boradcaster software.

Hi there,
when I try to broadcast with the ingame twitch broadcasting menu, it tells me that the username and or password are wrong although I checked it many times.
Is this feature broken?
Thanks for the help.
Carl