[Lenovo T450] BT devices connected successfully 1 minute later, it will disconnect automatically. [8087:0a2a] -- 14.04.2

[Gabriel Zhi Chen]

CID : 201502-16842 Lenovo T450

Steps:
1. Install 14.04.2 on Lenovo T450
2. Log in system and connect BT devices (Mouse, keyboard, headset or mobile phone...)
3. After BT device connect, wait 1 minute and verify the result.

Expected result:
BT device connect remaining and available all time.

Actual result:
BT deviceconnected 1 minute later, it will disconnect automatically.

---
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: u 1655 F.... pulseaudio
 /dev/snd/controlC0: u 1655 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=01240a83-2e9e-4951-8c40-94b759934ce3
InstallationDate: Installed on 2015-05-11 (3 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: LENOVO 20BUZ0BTUS
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-30-generic root=UUID=18c52354-b721-4d40-b110-39737086d3d1 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-30-generic N/A
 linux-backports-modules-3.16.0-30-generic N/A
 linux-firmware 1.127.11
Tags: trusty
Uname: Linux 3.16.0-30-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 02/03/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET45WW (1.10 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BUZ0BTUS
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:bvrJBET45WW(1.10):bd02/03/2015:svnLENOVO:pn20BUZ0BTUS:pvrThinkPadT450:rvnLENOVO:rn20BUZ0BTUS:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BUZ0BTUS
dmi.product.version: ThinkPad T450
dmi.sys.vendor: LENOVO

[Gabriel Zhi Chen (gabrielzchen)]

apport information

[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

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[Gabriel Zhi Chen (gabrielzchen)]

I updated BIOS version to 1.14, based on http://support.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t450 . Then I try to connect BT devices. I chose 2 devices for test, a BT headset (LG HBM 230) and BT mouse (Blutooth Laser Travel Mouse). After the 2 devices connected with system successfully, waiting about 2 minutes. BT headset tried to re-connect system always; BT mouse disconnect with system. But they are show 'Connection ON' in BT indicator.

[Gabriel Zhi Chen (gabrielzchen)]

$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

sudo: unable to resolve host 201502-16842
JBET49WW (1.14)
sudo: unable to resolve host 201502-16842
05/21/2015

[penalvch (penalvch)]

Gabriel Zhi Cen, could you please test the latest upstream kernel available from the very top line at the top of the page (the release names are irrelevant for testing, and please do not test the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where XY and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Gabriel Zhi Chen (gabrielzchen)]

Fresh install 14.04.2 on this machine, connect BT devices (headset, BT mouse or mobile phone). They are all working normally. Installed package plainbox-provider-certification-client 0.17 and plainbox-provider-checkbox 0.21 and try to reproduce the issue. It is also can not reproduce any more.

I guess it could fixed by update BISO && re-install 14.04.2.

[Liming Wang (wangliming)]

Maybe after updating BIOS, the issue is fixed. So we mark it as won't fix.

[Launchpad Janitor (janitor)]

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