I tried the command on a terminal: apport-collect 1635236
but it gives: ERROR: Could not import module, is a package upgrade in progress? Error: No module named PyQt5.QtCore to Joseph: Pc is new, bought yesterday, made a fresh install of Kubuntu, it gave and give me always the problem, with the distRibution default kernel and also with: 4.4.0-31 4.4.0-43 4.4.0-45 I tried the v4.9 rc1 the problem still present. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1635236 Title: Lenovo Ideapad 100 won't reboot Status in linux package in Ubuntu: Confirmed Bug description: With the model of Lenovo Ideapad 100 the system with Ubuntu and Kubuntu 16.04 don't reboot. Exact model: Lenovo Ideapad 100 15IBD If i try to reboot the pc shut off the display for a moment then it go back with a little retroillumination but it stays stucked. No commands or key works, only brutal shut off of the entire pc with the power button. i made some search and "solved" not properly, but it seems to be a work around, getting: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=pci" on the file: sudo kate /etc/default/grub information from there: http://askubuntu.com/questions/706867/power-off-reboot-fail-lenovo- ideapad-100 the others commands worked for a while then they stopped. I don't know what commands really do, i only tryied them. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1635236/+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