@dbini said:

you could add a HDMI switch into the mix before the splitter(s) - these are cheap and readily available

I've also used HDMI switches. 

Slightly more expensive, but also a possibility is a KVM switch so you can use the same mouse and keyboard for both computers (if they're both desktops). You could also combine an HDMI switch and a USB switch to accomplish the same thing.

@eight said:

Isadora 3.2.6 on macbook pro m4

This may be the problem. Isadora 3.2.6 was tested and is stable on Apple computers up to Ventura (released 2022), but Apple's M4 chips were released in 2024/2025, so it may be an issue we haven't seen before that occurs when running Isadora 3.2.6 on an unsupported OS/Apple computer.

I'd also be curious to know if deleting Isadora Preferences helps, and if opening the same file in Isadora 4 still shows the same issue.

@dusx
Yes, tried all of them –– no luck.

@eight

Have you tried to select all the actors, then toggle the actors properties like, collapse/expand, hide property names/show property names?

As I was working on a patch in Isadora 3.2.6 on macbook pro m4, suddenly the titles of the actors disappeared.

Restarting Isadora and computer did not bring the titles back. A new patch, created in the same Isadora instance have the titles as usual.

Copying a damaged scene into a new patch and adding new actors into it displays the new actors with the titles. Adding new scene in the damaged patch and adding an actor to it, instantiates the actors without titles. Any way to bring the titles back for the damaged actors?

Thanks.

@eva

you could add a HDMI switch into the mix before the splitter(s) - these are cheap and readily available - I bought one from a supermarket when I needed to solve the problem of 2 laptops into one projector.

thank you people!

Yes I need to change VJ that is the second part. So I need to have two computers connected:)

@woland

Thanks

@eva

I second the HDMI splitter suggestion. There are even 1-to-6 and 1-to-8 HDMI splitters, but the cheapest option would likely be two 1-to-4 HDMI splitters.

@jfg

I've logged this as a feature request