Ethernet does not work on battery

[Charles Profitt]

I have a lenovo T500 and when booting on battery the Ethernet card does not work. If the laptop is on AC it does. If I plug the AC in after boot the Ethernet card begins to work and remains working even if the AC is removed.

Ethernet works if the acpi=off is added to grub.
---
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: cprofitt 2009 F.... pulseaudio
DistroRelease: Ubuntu 13.04
HibernationDevice: RESUME=UUID=96605a0a-95c6-4f73-a82b-9b283b3313fe
InstallationDate: Installed on 2013-01-13 (82 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130111)
MachineType: LENOVO 2081CTO
MarkForUpload: True
Package: linux 3.8.0.16.31
PackageArchitecture: amd64
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-15-generic root=UUID=860735d2-7dc0-4a91-a04e-67b5d5bbdc40 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-15-generic N/A
 linux-backports-modules-3.8.0-15-generic N/A
 linux-firmware 1.104
Tags: third-party-packages raring
Uname: Linux 3.8.0-15-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
dmi.bios.date: 12/14/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 6FET92WW (3.22 )
dmi.board.name: 2081CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6FET92WW(3.22):bd12/14/2011:svnLENOVO:pn2081CTO:pvrThinkPadT500:rvnLENOVO:rn2081CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2081CTO
dmi.product.version: ThinkPad T500
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 1165248

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.

[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Charles Profitt (cprofitt)]

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[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a kernel version where you were not having this particular problem? This will help determine if the problem you are seeing is the result of the introduction of a regression, and when this regression was introduced.

[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 v3.9 kernel[0]. You will need to install both the linux-image and linux-image-extra .deb packages.

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/v3.9-rc6-raring/

[Charles Profitt (cprofitt)]

Joseph:

I usually use this docked -- so I can not say if it has been in Raring the entier time or not. I will test the mailine later tonight and update the bug after. I am also willing to boot with previous versions of raring and will do that if the mainline does not show an improvement.

[Charles Profitt (cprofitt)]

The mainline kernel resolves the bug.

[Joseph Salisbury (jsalisbury)]

I'd like to perform a reverse bisect to figure out which commit upstream fixes this regression. It would be very helpful to know the last kernel that had this issue and the first kernel that did not.

Can you test the following kernels and report back? We are looking for the earliest kernel version that doesn't have this bug:

v3.9-rc4: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc4-raring/

If v3.9-rc4 exhibits the bug then test v3.9-rc6:
v3.9-rc6: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc6-raring/

If v3.9-rc4 does not exhibit the bug then test v3.9-rc2:
v3.9-rc2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc2-raring/

You don't have to test every kernel, just up until the first kernel that does not have this bug.

One thing to note, you will need to install both the linux-image and linux-image-extra .deb packages.

Thanks in advance!

[Charles Profitt (cprofitt)]

I started with v3.9-rc2-raring and it does not have the bug.

[Joseph Salisbury (jsalisbury)]

And v3.9-rc1 does exhibit the bug?

[Joseph Salisbury (jsalisbury)]

This seems similar to bug 1169244, can you confirm v3.9-rc2 does not exhibit the bug?

[Joseph Salisbury (jsalisbury)]

I built a Raring test kernel with commit 66148ba applied.

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1112652

Can you test that kernel and report back if it has the bug or not.

One thing to note, you will need to install both the linux-image and linux-image-extra .deb packages.

Thanks in advance!

[vilbara (vilmantas-baranauskas)]

The bug is still present after installing all 4 deb packages you've specified.

uname -a
Linux zathura 3.8.0-19-generic #30~lp1112652v1 SMP Thu May 2 18:08:15 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

[Charles Profitt (cprofitt)]

Joseph:

I apologize for being busy -- I will test the test kernel tonight after work.

[Charles Profitt (cprofitt)]

I tested those four files, and the problem still persists.

[Anders Hall (a.hall)]

I can confirm this bug exist on Lenovo x230. Tried to manually start eth0 without success, when on battery.

[Lars Bahner (bahner)]

But it will work if you boot with "acpi = off". There used to be a power tweak option to enable ethernet while on battery, but there is no longer such an option in under network settings. I am trying to figure out howto tweak this, with no luck so far.