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Compute Module • CM4s replaces CM3, problem: Ethernet and USB

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Hello
I would like to replace a CM3 with a CM4S. Which works fine, except for sharing a video stream from a USB camera and network access.

I have tried various OS, the effect is always the same.

To reproduce:
1. network not plugged in
2. plug in the USB camera
3. start video from USB camera:

Code:

mplayer tv:// -tv driver=v4l2:device=/dev/video0:width=1280:height=720
--> Video is displayed
4. connect Ethernet --> video now has still image, is updated approx. 10s
5. unplug Ethernet --> video is played back normally again
6. step 4 and 5 can be repeated as often as required


Setup
******
OS:
Raspberry Pi OS (64-bit), Kernel 6.6, 12 (Bookworm)
Raspberry Pi OS (32-bit), kernel 6.6, 12 (Bookworm)
Raspberry Pi OS (32-bit), Kernel 6.1, 11 (Bullseye)

Application:

Code:

sudo apt-get install mplayer 
Driver:

Code:

sudo apt-get install libavcodec-extra
These problem do not exist with CM3 and the OS of that time (the hardware is the same).

Does anyone have an idea what could be wrong here?

Statistics: Posted by nfstoney — Mon Jan 13, 2025 4:18 pm — Replies 0 — Views 30



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