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. ** Tags removed: bios-outdated-1.13 ** Tags added: latest-bios-1.14 ** Changed in: linux-lts-utopic (Ubuntu) Importance: Low => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-utopic in Ubuntu. https://bugs.launchpad.net/bugs/1454938 Title: [Lenovo T450] BT devices connected successfully 1 minute later, it will disconnect automatically. [8087:0a2a] -- 14.04.2 Status in HWE Next Project: New Status in linux-lts-utopic package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1454938/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
