On Friday 18 May 2012 03:10 PM, Launchpad Bug Tracker wrote: > You have been subscribed to a public bug: > > In my new install of ubuntu 12.04, The webcam light indicator starts > flashing randomly, as if the camera is turned on by itself. This > happened before only when i logged in, and also when i opened gmail on > firefox / chrome, but now it happens at random. My previous workaround > was 'turning off' the camera using cheese, but now even this is not > working. I have a Thinkpad SL400 with a fresh install of ubuntu 12.04. > > This somehow seems to be related to the power manager. If i plug the > laptop to the charger, the camera light turns on. That's because laptop-mode-tools, by default, enables power saving measures for all devices that broadcast it. In your case, the webcam driver broadcasts that it can do power saving, where as in reality, it is not. You might want to also report it as a kernel driver bug.
As for the solution, removing laptop-mode-tools is one option, which you have already done. The other option is to disable powersavings for this device by finding its usb ID (using lsusb command) and adding it to laptop-mode-tools' blacklist section in /etc/laptop-mode/conf.d/usb-autosuspend.conf config file. -- Ritesh Raj Sarraf RESEARCHUT - http://www.researchut.com "Necessity is the mother of invention." -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001132 Title: Webcam turns on/off randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/laptop-mode-tools/+bug/1001132/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
