Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.13 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'. 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/v4.13-rc2 ** 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/1705900 Title: Lenovo e73 USB webcam problems Status in linux package in Ubuntu: Incomplete Bug description: I'm experiencing problems with USB webcam on Lenovo e73 with Ubuntu 16.04.2 Xenial 32bit. Originally with 4.4 connecting the camera often resulted in complete hang of the system (apparently not even SysRq worked, though I did not test that personally since it is a system I'm administering remotely for a family member). There was always a null pointer dereference just before the hang, so I suspect that is the culprit (see the attached kernel log). After some updates the system no longer hangs. I suspect this was fixed by going from linux 4.4 to 4.8. However, the webcam still often doesn't work and most application just return error. This is usually fixed after several tries, but sometimes it is necessary to reboot computer. Updating BIOS didn't help. The kernel logs still contain the same null pointer dereference with exactly the same stack trace for both 4.8 and 4.10. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705900/+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
