Lenovo Yoga 720 does not shutdown with wifi enabled

[Benedikt Wildenhain]

Whenever I try to shutdown or reboot the system while the internal wifi card is enabled, the systems hangs (system does not switch to command line mode, only possible to reboot using Syrq-Key+B, even Sysrq+O does not work). When I disable the wifi card using network manager before shutting down it works fine. The system runs in UEFI mode.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-13-generic 4.15.0-13.14 [modified: boot/vmlinuz-4.15.0-13-generic]
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Uname: Linux 4.15.0-13-generic x86_64
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: joe 1448 F.... pulseaudio
CurrentDesktop: XFCE
Date: Thu Apr 12 17:36:34 2018
InstallationDate: Installed on 2018-04-09 (3 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180409)
MachineType: LENOVO 80X7
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-13-generic.efi.signed root=UUID=3ba7e23d-37e2-4bef-b60a-c7509a7b487c ro reboot=cold
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-13-generic N/A
 linux-backports-modules-4.15.0-13-generic N/A
 linux-firmware 1.173
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/22/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: 4MCN22WW(V1.07)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Lenovo YOGA 720-15IKB
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 31
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo YOGA 720-15IKB
dmi.modalias: dmi:bvnLENOVO:bvr4MCN22WW(V1.07):bd06/22/2017:svnLENOVO:pn80X7:pvrLenovoYOGA720-15IKB:rvnLENOVO:rnLenovoYOGA720-15IKB:rvrSDK0J40709WIN:cvnLENOVO:ct31:cvrLenovoYOGA720-15IKB:
dmi.product.family: IDEAPAD
dmi.product.name: 80X7
dmi.product.version: Lenovo YOGA 720-15IKB
dmi.sys.vendor: LENOVO

[Benedikt Wildenhain (y-launchpad-net-a)]

Adding reboot=bios, reboot=pci, reboot=cold, reboot=warm, reboot=efi, acpi=force to the kernel parameters list did not help.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

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 v4.16 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/v4.16

[Benedikt Wildenhain (y-launchpad-net-a)]

The system was only recently installed, so there was no other version of the kernel before on this system. However, last week I could get my hands on this system again and update/upgrade installed a new kernel which fixed the problem, I did not have the possibility yet to check whether it now also reboots without "reboot=cold".

[Benedikt Wildenhain (y-launchpad-net-a)]

Unfortunately the new Ubuntu kernel did not fix the issue, it only worked fine during some reboots. I now tried mainline v4.16.6 and v4.17-rc3, both did not fix the issue neither.

[Benedikt Wildenhain (y-launchpad-net-a)]

 tag kernel-bug-exists-upstream

[Kai-Heng Feng (kaihengfeng)]

Can you try latest firmware in [1]?

[1] https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Sewi (sebastian-willing)]

Confirmed on Yoga 730-15 with current mainline kernel 4.18.5-041805-generic_4.18.5-041805.201808241320_amd64 on Ubuntu 18.04 (but also happend with stock 18.04 kernel).

Gnome freezes immediately when issuing a "shutdown" or even "log out" click.

Even CapsLock doesn't respond any longer.

Disabling Wifi doesn't help.

Shut down does work from the login screen.

[Rami Lehti (rammer)]

I had this same problem as described by #11. I found that changing the display driver to proprietary nvidia driver helped. The nouveau driver was the issue.