Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.19 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-vivid/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1422680 Title: v4l2 regression: T420s built in camera stopped working Status in linux package in Ubuntu: Incomplete Bug description: The Chicony Electronics Camera (as built into for example Lenovo T420s) stopped working somewhere between kernel 3.2 and 3.13. I use both kernels in Ubuntu 12.04, and the camera works with the older one, so I filed the bug here as I don't know when it stopped working. The camera is still recognized by v4l2, properties can be accessed by v4l2-ctl for example, and seemed correctly reported back (pixelformats for exmaple match my expectation). But the frame capturing intself will always fail with 'device busy'. Usb IDs: 04f2:b221 Chicony Electronics Co., Ltd integrated camera What further information would be useful? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1422680/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
