Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.9 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/v4.9-rc1/ ** 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/1635236 Title: Lenovo Ideapad 100 won't reboot Status in linux package in Ubuntu: Incomplete 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
