I think the NULL pointer dereference is red herring here, the disconnection is where problem occurs: júl 22 21:12:50 lenovo kernel: usb 3-2: USB disconnect, device number 2
So we need to know why the webcam disconnected right before it starts streaming. Please add "xhci-pci.dyndbg=+p xhci-hcd.dyndbg=+p usbcore.dyndbg=+p" to the kernel parameter, reproduce the bug, then attach dmesg. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1705900 Title: Lenovo e73 USB webcam problems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705900/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs