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Crash with a particular VideoCaptureDS Opts parameter

Posted: Sat Jul 26, 2025 3:49 pm
by Terry Payman
EDIT: This is almost certainly a Magewell driver problem. OBS also crashes when attempting to access "Configure Video".

System repeatably crashes when VideoCaptureDS Opts parameter set to -show_video_device_dialog true

Other "Opts" settings work eg
-framerate 30
-framerate 59.94

Invalid settings disappear, eg -framerate 60 is replaced by the previous -framerate 59.94

App: Magic Performer 2.33 64-bit
OS: Windows 11 Professional (x64) Version 24H2 (build 26100.4652)
GPU: NVIDIA GeForce RTX 5060 Ti 16GB
Capture card: Magewell Magewell Pro Capture AIO
NVIDIA driver(latest): NVIDIA Studio Driver 5.77 July 22 2025.
Magewell Driver (latest) V1.3.0.4323 2022/12/28

CPU: 3.80 gigahertz AMD Ryzen 7 9700X with AMD Radeon graphics
Mobo: ASRock B850M Steel Legend WiFi
RAM: 32GB RAM

Re: Crash with a particular VideoCaptureDS Opts parameter

Posted: Sat Jul 26, 2025 4:41 pm
by Sadler
Looks like you got a new laptop! That parameter works for me with my built-in webcam.
Screenshot 2025-07-26 173756.jpg
Screenshot 2025-07-26 173756.jpg (35.22 KiB) Viewed 3197 times

Re: Crash with a particular VideoCaptureDS Opts parameter

Posted: Tue Jul 29, 2025 11:42 pm
by Terry Payman
Thanks for checking this Sadler!

It could be a problem with the capture card I'm using, or its driver, that wouldn't show with a different video source.

This is actually running on my new small desktop PC. I wanted something where I can upgrade the graphics.

It's going for its first outing at a local festival this weekend.
I need four large crates to carry all the kit I need for this one, plus a large bag for the projector and my PTZ camera.
One extra bag for the PC system vs a laptop doesn't add much. It's a car full either way.

Re: Crash with a particular VideoCaptureDS Opts parameter

Posted: Wed Jul 30, 2025 7:44 am
by Terry Payman
Magewell problem confirmed.
OBS also crashes when trying to "Configure Video"