On Fri, 2017-06-02 at 15:10 +0200, Gregor Jasny wrote: > Hello, > > On 6/2/17 12:24 PM, Victor Porton wrote: > > libv4l2: error turning on stream: Input/output error > > libv4l2: error turning on stream: Input/output error > > are there any errors in the Kernel message buffer visible? Please > type > dmesg and look for errors.
I found no relevant errors. I looked for "video" and "v4l" strings. > Could you please try qv4l2 and check if it displays proper video? It prints libv4l2: error turning on stream: Input/output error VIDIOC_STREAMON: Input/output error and displays a window whose content is entirely black.

