RuntimeError: No device connected

[korin-lf]

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Required Info
Camera Model	T265
Firmware Version	(Open RealSense Viewer --> Click info)
Operating System & Version	Ubuntu 20.04
Kernel Version (Linux Only)	5.4.0-70-generic
Platform	PC
SDK Version
Language	python
Segment	{Robot/Smartphone/VR/AR/others }

Issue Description

pipe.start(cfg) RuntimeError: No device connected

though realsense-viewer show the camera properly and modinfo uvcvideo | grep "version:" includes realsense string

so what can be done to run the examples? thanks

[ISim000nI]

Had the same problem. Easiest solution would be (under the assumption that your code is flawless) to make sure that the realsense-viewer is closed and if the error should still occur simply disconnect the camera for 10 seconds.