There are many USB/UVC commits between these two versions. Please run a kernel bisection:
$ sudo apt build-dep linux $ git clone git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/xenial $ cd linux $ git bisect start $ git bisect good Ubuntu-4.4.0-170.199 $ git bisect bad Ubuntu-4.4.0-171.200 $ make localmodconfig $ make -j`nproc` deb-pkg Install the newly built kernel, then reboot with it. If it still have the same issue, $ git bisect bad Otherwise, $ git bisect good Repeat to "make -j`nproc` deb-pkg" until you find the offending commit. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861344 Title: uvcvideo: IPEVO Ziggi-HD document camera stops working on kernel 4.4.0-171 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861344/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs