Lenovo T440p (Haswell/NVidia optimus gfx) flaky unless I blacklist nouveau

[Roland Dreier]

I have a new Lenovo T440p laptop, which has a Haswell CPU and NVidia GPU in an "optimus" setup. In a default 14.04 install, the system is quite flaky: suspend doesn't work and doing lspci apparently corrupts memory (the system hits random weird failures and then freezes about 10 seconds after running lspci). If I blacklist the nouveau module then the system seems to work fine (suspend/resume is good and lspci doesn't cause problems).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-2-generic 3.13.0-2.17
ProcVersionSignature: Ubuntu 3.13.0-2.17-generic 3.13.0-rc7
Uname: Linux 3.13.0-2-generic x86_64
ApportVersion: 2.13.1-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: roland 2111 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Jan 13 09:35:00 2014
HibernationDevice: RESUME=UUID=af5ffc5d-f07d-48f1-8bab-636acd0359be
InstallationDate: Installed on 2014-01-11 (2 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140109)
MachineType: LENOVO 20ANCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-2-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro plymouth:debug splash quiet drm.debug=0xe
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-2-generic N/A
 linux-backports-modules-3.13.0-2-generic N/A
 linux-firmware 1.121
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/04/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: GLET43WW (1.18 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20ANCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGLET43WW(1.18):bd12/04/2013:svnLENOVO:pn20ANCTO1WW:pvrThinkPadT440p:rvnLENOVO:rn20ANCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20ANCTO1WW
dmi.product.version: ThinkPad T440p
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Does this issue not happen with prior releases or kernel versions?

Also, would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.13 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/v3.13-rc8-trusty/

[Roland Dreier (roland.dreier)]

I tried this with the latest upstream kernel (3.13-rc8) plus the patch https://bugs.freedesktop.org/attachment.cgi?id=91164 to Intel graphics displayport handling (needed to make my monitor connected to my docking station work). If I get rid of the "blacklist nouveau" with this kernel, suspend is still broken but lspci does not crash my system.

[Roland Dreier (roland.dreier)]

Actually I was wrong about lspci working with the upstream kernel. It looks like I got lucky once, but the next time I tried it with upstream 3.13-rc8 the system hung just like it does with the Ubuntu kernel.

So the upstream kernel behavior looks to be pretty much the same as the Ubuntu kernel.

[Joseph Salisbury (jsalisbury)]

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

[cologic (cologic)]

This is a known issue, investigated at https://github.com/Bumblebee-Project/bbswitch/issues/78 under the title "Memory/data corruption / crash on Lenovo T440p (GT 730M)".

abbradar suggests that "Working workarounds are either downgrading bios to 1.14 (solves the problem completely) or using acpi_call to disable nvidia completely (if you are not using nvidia and are concerned about power consumption only)."

[Michal Kvasnicka (michal-kvasnicka)]

A can confirm this problem with latest bios 2.22 ... any help?

[Joe (jo-h)]

I tried to install Ubuntu 14.04 and Ubuntu gnome 14.04.1 on my T440p with the newest
bios update 2.25 - no change.

I can install ubuntu using "nomodeset", but installing nvidia or bumblebeedrivers doesn't work at all. The Computer doesn't recognise the graphic card GT 730M.

Lenovo hasn't fixed the bug...

[penalvch (penalvch)]

Roland Dreier, as per http://support.lenovo.com/us/en/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T440p?beta=false an update to your computer's buggy and outdated BIOS is available (2.36). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement or not.
3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

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