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I have a Lenovo x200s laptop. I often use skype video calls. The video camera initially works, but always shuts down after some time, usually minutes. It seems that the only way to get it working is a system reboot. Note that this is not a skype problem, it does the same with other software e.g. cheese. Restarting the software does not help. I'm not completely sure that this is not a hardware problem, but I wanted to ask for advice where to look for the source of the problem.
The lspci record for my video camera is
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)Offline