Po-Hsu Lin, as per your https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1192411/+attachment/3707011/+files/BootDmesg.txt : [ 0.191389] mtrr: your CPUs had inconsistent variable MTRR settings [ 0.191391] mtrr: probably your BIOS does not setup all CPUs. ... [ 0.436327] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
Hence, as per http://www.dell.com/support/drivers/us/en/19/product/inspiron-14r-5420 an update is available for your BIOS (A19). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Thank you for your understanding. ** Tags removed: bios-outdated-a17 ** Tags added: bios-outdated-a19 ** Summary changed: - [Dell Inspiron 5420] Bluetooth indicator disappeared after wakeup form suspend / hibenate + [Dell Inspiron 14R 5420] Bluetooth indicator disappeared after wakeup form suspend / hibenate ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1192411 Title: [Dell Inspiron 14R 5420] Bluetooth indicator disappeared after wakeup form suspend / hibenate Status in “linux” package in Ubuntu: Incomplete Bug description: CID: 201202-10511 Dell Inspiron 5420 The Bluetooth indicator disappears after suspend / hibernate. Connected Bluetooth device will stop working. Press the wireless key twice to bring down and up wireless device will get it back. Message from bluetooth-applet with a connected bluetooth device after suspend: ***wakeup from suspend*** Agent unregistration failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownObject: Method "UnregisterAgent" with signature "o" on interface "org.bluez.Adapter" doesn't exist 'g-io-error-quark' (bluetooth-applet:6714): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that doesn't believe we're it's parent. (bluetooth-applet:6714): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that doesn't believe we're it's parent. (bluetooth-applet:6714): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that doesn't believe we're it's parent. (bluetooth-applet:6714): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that doesn't believe we're it's parent. (bluetooth-applet:6714): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that doesn't believe we're it's parent. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-34-generic 3.5.0-34.55 ProcVersionSignature: Ubuntu 3.5.0-34.55-generic 3.5.7.13 Uname: Linux 3.5.0-34-generic x86_64 ApportVersion: 2.6.1-0ubuntu11 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 1811 F.... pulseaudio CRDA: country TW: (2402 - 2472 @ 40), (3, 27) (5270 - 5330 @ 40), (3, 17), DFS (5735 - 5815 @ 40), (3, 30) Date: Wed Jun 19 09:49:52 2013 HibernationDevice: RESUME=UUID=0cbc4d1f-a6f7-4398-a928-15aee8a03533 InstallationDate: Installed on 2013-06-06 (12 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: Dell Inc. Inspiron 5420 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb 1 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-34-generic root=UUID=34982449-6328-4fbc-8e61-41863e82df6b ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.5.0-34-generic N/A linux-backports-modules-3.5.0-34-generic N/A linux-firmware 1.95.1 SourcePackage: linux StagingDrivers: rts5139 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/24/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: X58 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrX58:bd07/24/2012:svnDellInc.:pnInspiron5420:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Inspiron 5420 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1192411/+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