msg:Failed to stream off!/dev/video6, No such device

[IceRain-y]

Execute failure! A libobsensor_exception has occurred!
- where:772#sendStopStreamVendorCmd
- msg:Request failed, statusCode: 2, msg: send control transfer failed!
- type:N11libobsensor12io_exceptionE
[03/13 09:12:35.266793][error][797166][VideoSensor.cpp:772] setPropertyValue to stop stream failed! @OB_SENSOR_DEPTH
[03/13 09:12:35.266834][warning][797166][VideoSensor.cpp:422] Execute failure! A libobsensor_exception has occurred!
- where:422#handleDeviceDetached
- msg:Failed to stream off!/dev/video6, No such device
- type:N11libobsensor12io_exceptionE
[03/13 09:12:35.266861][info][797166][DeviceManager.cpp:15] Removed device(s) list: (1)
[03/13 09:12:35.266875][info][797166][DeviceManager.cpp:24] - Name: Femto Mega, PID: 0x0669, SN/ID: CL2H841006S, Connection: USB3.2

[zhonghong322]

From the log, it appears that the device has disconnected. Check using dmesg to see if there are any 'Disconnect' logs from the kernel.