oliver
Posts: 26
Joined: Sun Mar 30, 2014 4:53 pm

mmal: Received unexpected camera control callback event, 0x4

Tue Nov 04, 2014 7:57 pm

Hi I have this problem when I try to take a photo on my camera it comes up with this error message :(

Code: Select all

mmal: Received unexpected camera control callback event, 0x4f525245
Would anyone know what to do about this?
I have tried resetting the sunny connecter but it didn't do anything.
when i try to do a 5 second video the led turns on for 5 seconds but i don't think it records anything. It saves a file that I can't open as it is not in video format.
I have enabled the camera and updated the software.
I think a song time ago I turned the small red led off but i have turned it on again as apparently you can't turn it off any more.
It used to work but now it doesn't

is this the right forum to post it in or should i post it in troubleshooting?

Thanks in advance
Olly

6by9
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Re: mmal: Received unexpected camera control callback event,

Tue Nov 04, 2014 8:17 pm

Yes, this is probably the best forum.
It will be one of the connections to the camera - if not the Sunny connector, then try disconnecting the ribbon cable and reconnecting it as they can be fickle things to get correctly seated. The message is the result of a timeout - whilst the Pi can talk to the camera on I2C, it is getting no data back from it on the CSI bus.
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