[Asus N550JV] Bluetooth working intermittently AR9485

Bug #1336179 reported by Simone Fabris on 2014-07-01
This bug affects 4 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

Ubuntu is the only OS in this machine.
Bluetooth is not recognized after boot.

In order to have Bluetooth working, I have to reboot several times (sudo reboot), usually between 3 to 5 times before having a working bluetooth.

The attached system information were collected with WORKING bluetooth.


ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-30-generic 3.13.0-30.54
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic
Uname: Linux 3.13.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
 /dev/snd/controlC0: sf 3471 F.... pulseaudio
 /dev/snd/controlC1: sf 3471 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Jul 1 09:25:17 2014
HibernationDevice: RESUME=UUID=b428f4ee-7e0b-40a8-96a8-99f409fe6505
InstallationDate: Installed on 2014-06-20 (10 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic.efi.signed root=UUID=54c2af9c-f274-4860-8780-39b756a19cc7 ro quiet splash acpi_osi= vt.handoff=7
 linux-restricted-modules-3.13.0-30-generic N/A
 linux-backports-modules-3.13.0-30-generic N/A
 linux-firmware 1.127.4
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/19/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: N550JV.208
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: N550JV
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN550JV.208:bd11/19/2013:svnASUSTeKCOMPUTERINC.:pnN550JV:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN550JV:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: N550JV
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

Simone Fabris (simone-fabris) wrote :

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed

Simone Fabris, could you please test the latest upstream kernel available from the very top line at the top of the page (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine 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:

where VERSION-NUMBER is the version number of the kernel you tested. For example:

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:

If the mainline kernel does not fix this bug, please add the following tags:

As well, please remove the tag:

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: added: latest-bios-208
Changed in linux (Ubuntu):
importance: Undecided → Medium
status: Confirmed → Incomplete
summary: - Bluetooth working intermittently (AR9485 on Asus N550JV)
+ [Asus N550JV] Bluetooth working intermittently AR9485
Simone Fabris (simone-fabris) wrote :

Tested with upstream kernel, nothing changed.

tags: added: kernel-bug-exists-upstream kernel-bug-exists-upstream-
tags: added: kernel-bug-exists-upstream-3.16.0-031600rc3
removed: kernel-bug-exists-upstream-
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Simone Fabris (simone-fabris) wrote :

Also, I noticed this entries in dmesg:

[ 25.618865] Bluetooth: Error in firmware loading err = -110,len = 448, size = 4096
[ 25.618873] Bluetooth: Loading patch file failed
[ 25.618879] ath3k: probe of 3-5:1.0 failed with error -110
[ 25.618919] usbcore: registered new interface driver ath3k

So, this could be related to firmware uploading...

Simone Fabris, did this problem not occur in a release prior to 14.04?

tags: added: kernel-bug-exists-upstream-3.16-rc3
removed: kernel-bug-exists-upstream-3.16.0-031600rc3
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Simone Fabris (simone-fabris) wrote :

I have no idea, as this is a new machine with a fresh Ubuntu installation.

I'll try to boot some older release and I'll report back.

Simone Fabris (simone-fabris) wrote :

This bus is acually a duplicate of #1260825

To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers