I have Ubuntu 14.04 on a Lenovo Y50-70 and the integrated camera is not detected on cheese. When I "lspci" I get this: "Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5249 (rev 01)".

I tried this: Integrated webcam not detected after update to 14.04

This: UBUNTU 14.04 cheese booth not detect webcam

And this: Internal SD card reader not mounted/detected HP realtek rts5227

None of the above proposed solutions worked for me and I am completely lost on what should I try. Any help will be highly appreciated. Thank you all in advance.

PS: I am a new Ubuntu user so I am still learning how to swim :)

  • Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5249 (rev 01), this is for your Card reader and not webcam! – Kamiel Ahmadpour Jul 6 '16 at 19:05

Finally I found a solution that worked for me. It was a permission problem. I did what "papibe" proposed in post #10 here:


by papibe , November 26th, 2013

It may be a permissions problem: Code:

ls -l /dev/video0 
crw-rw----+ 1 root video 81, 0 Nov 25 19:23 /dev/video0

Add yourself to the video group: Code:

sudo usermod -a -G video youruser

replace 'youruser' for your actual username.

  • Thanks, it works fine but when I restarted the computer, it can't recognize /dev/video0 anymore – Kamiel Ahmadpour Jul 6 '16 at 19:00

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