[ThinkPad X1 Carbon 20BT] Fails to suspend from the second time

[Adam Lee]

version: 3rd(2015 version) on Trusty(14.04)

It suspends and resumes successfully at the first time, then WWAN devices disappear and fails to suspend.

workaround 0:
BIOS, Always On USB to disable, USB 3.0 mode to enable

workaround 1:
disable cdc* modules in rootfs and initramfs(you will lose WWAN feature)

workaround 2:
reset that WWAN device from xHCI(USB 3.0) port to EHCI(USB 2.0)

We still need a fix.
---
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: u 1490 F.... pulseaudio
 /dev/snd/controlC1: u 1490 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=53af0423-2b7d-48f8-a1eb-19ef371b2aea
InstallationDate: Installed on 2015-01-12 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: LENOVO 20BTZ09ZUS
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=7b0bf38c-9b8d-4349-b992-074cbddd2f13 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-43-generic N/A
 linux-backports-modules-3.13.0-43-generic N/A
 linux-firmware 1.127.11
Tags: trusty
Uname: Linux 3.13.0-43-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/27/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: N14ET24W (1.02 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BTZ09ZUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN14ET24W(1.02):bd10/27/2014:svnLENOVO:pn20BTZ09ZUS:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BTZ09ZUS:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BTZ09ZUS
dmi.product.version: ThinkPad X1 Carbon 3rd
dmi.sys.vendor: LENOVO

[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 1409584

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.

[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Adam Lee (adam8157)]

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[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.19 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'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v3.19-rc4-vivid/

[penalvch (penalvch)]

Adam Lee, the next step is to fully reverse commit bisect from kernel 3.13 to 3.19-rc4 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?

Thank you for your understanding.

[Launchpad Janitor (janitor)]

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