Shutdown hangs at ubuntu splash screen on Lenovo Yoga 13

[Mentor]

When shutting down (either through GUI or sudo halt) ubuntu starts the shutwown process, but hangs at the splash screen.

After some minutes I simply hold the power button to power down.

The device is a dual booted Lenovo yoga 13.

System info
14.10

Expexted behavior
Device poweroff at shutdown
Device poweroff and back on when reboot

Behavior
Hang at ubuntu splash screen indefinitely
---
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mentor 2205 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.10
HibernationDevice: RESUME=UUID=491ae5d3-5761-4951-9a34-bb320ccfae55
InstallationDate: Installed on 2015-02-26 (16 days ago)
InstallationMedia: It
MachineType: LENOVO 2191
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic root=UUID=e5e9c0eb-1803-45a3-81f9-bd7ce6430e58 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-31.43-generic 3.16.7-ckt5
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-31-generic N/A
 linux-backports-modules-3.16.0-31-generic N/A
 linux-firmware 1.138.1
StagingDrivers: r8723au
Tags: utopic staging
Uname: Linux 3.16.0-31-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 02/28/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 66CN55WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Yoga 13
dmi.modalias: dmi:bvnLENOVO:bvr66CN55WW:bd02/28/2013:svnLENOVO:pn2191:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13:
dmi.product.name: 2191
dmi.product.version: Lenovo IdeaPad Yoga 13
dmi.sys.vendor: LENOVO

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1431722/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1431722

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Mentor (mentor-s)]

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[Mentor (mentor-s)]

The command was executed successfully. The only notification after opening the browser window and conpleting the send-info request was "dpkg-query: no packages found matching linux".

Changed status to confirmed

[Alberto Salvia Novella (es20490446e)]

Please:
- Test if this bug is happening using the mainline kernel (https://wiki.ubuntu.com/Kernel/MainlineBuilds).
- Tell the result here.
- Set this bug status back to "confirmed".

Thank you.

[Joseph Salisbury (jsalisbury)]

Specifically can you test the 4.10-rc4 kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-rc4-vivid/

[Launchpad Janitor (janitor)]

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

[Launchpad Janitor (janitor)]

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