Bug Report OBS cannot find Second Monitor..

[jjunest]

hello. i'm first to use the OBS studio.

here is my problem. OBS can not find the my second monitor.

i have 3 monitors which are laptop's monitor, usb monitor, and hdmi cable monitor.

But OBS can detect only two monitor, (laptop's monitor AND usb monitor) OR (hdmi monitor AND usb monitor).

OBS can not find the all three monitor.

when i change the main monitor setting in window to hdmi monitor, OBS detect the hdmi monitor (but Not detecting the laptop's monitor)

and when i change the main monitor setting in window to laptop monitor, OBS detect only laptop monitor.

here is my windows setting which let you know that i have three monitor,

and i gave you the logs which are representing the two problem situation.

thanks in advance.

- Lpg file: main monitor = laptop's monitor
https://gist.github.com/c175fe2026c0776657ef28cc3c752883

- Log file: main monitor = hdmi monitor
https://gist.github.com/c8f5336fbf94b5882b1e2fe2ee706652

 

[sam686]

Both your HDMI and laptop's display are running in different GPU (Graphics processing unit). Besides OBS-Studio, this will also prevent an option to clone in windows. Your laptop model number?
If your laptop have more HDMI ports, Try different HDMI port on laptop.
If your laptop have DVI, try DVI to HDMI adapter or cable.

I ran into the same problem on my desktop computer using 4 monitors (2 on each GPU). I am not sure if or when OBS-Studio would add the ability to capture displays on different GPU. Game capture works for most games, with some slowdowns when capturing from a different GPU.

 

[Suslik V]

@sam686 what you can say about this: how to get the second monitor solution or it is completely different (switch between first or second displays to capture either first or second)?

 

[sam686]

@sam686 what you can say about this: how to get the second monitor

Switching primary... that is only one or the other, not both GPU displays at the same time.

But, this may give an idea. Set the other as primary, run OBS-studio, switch back primary monitor, run a second copy of obs-studio. One obs-studio could "game capture" the other obs-studio with "Multi-adapter compatibility" on, at a cost of downscaled capture of the other obs-studio. More complications and more possible problem then if OBS-Studio could simply allow the ability to display capture all monitors at the same time on 2 different GPU.