I want to buy two screens to work at home. Now my work laptop only has one HDMI output. Is there an adapter where e.g. Can two screens be connected in order to only run through one output? Or what other alternatives are there?
Yes, but you can only duplicate the image with them.
To expand the picture you need two connections or a display port connection.
Just an HDMI port? Nothing else? Thunderbolt or DisplayPort maybe? Only with HDMI this does not work, then the same thing is displayed on both screens, which does not help you.
Possibly. Does an external graphics card with multiple connections work? Or a 4K screen.
An HDMI signal on two splits only causes the screen to be duplicated, so it does not help you
If the notebook does not have a DP to offer, then you can possibly (if available) use a USB-C to HDMI / DP adapter for the second screen or the good old docking station or port replicator, which then offers two connections
Is there an adapter where e.g. Can two screens be connected in order to only run through one output?
There's, but then both screens will forcibly show the same content. Which is not the point if you want to work on two screens.
If your notebook has a USB C port that supports Displayport, you can also use it to connect monitors
See if he doesn't have a VGA connection