168c:0032 [Asus X551CAP] Qualcomm Atheros AR9485 disabled at login

[Kaj Ailomaa]

To enable Qualcomm Atheros AR9485 Wireless Network Adapter I need to put the computer in sleep mode, then wake it up. Voila! The wifi adapter is activated.

This is a Asus R512C laptop. The function key for enabling/disabling Wifi is not working, but I noticed waking up from sleep would automatically activate the Wifi device.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-40-generic 3.13.0-40.69
ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
Uname: Linux 3.13.0-40-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: infoglob 1609 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Dec 4 14:50:50 2014
HibernationDevice: RESUME=UUID=e0b9cb80-a840-4679-be18-b5b6fc3098ce
InstallationDate: Installed on 2014-12-04 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: ASUSTeK COMPUTER INC. X551CAP
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic.efi.signed root=UUID=e4bddae4-299f-4ecc-8f46-918a55db2024 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-40-generic N/A
 linux-backports-modules-3.13.0-40-generic N/A
 linux-firmware 1.127.10
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/15/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X551CAP.201
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X551CAP
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.:bvrX551CAP.201:bd07/15/2013:svnASUSTeKCOMPUTERINC.:pnX551CAP:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX551CAP:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: X551CAP
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue occur in a previous version of Ubuntu, or is this a new issue?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.18 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/v3.18-rc7-vivid/

[Kaj Ailomaa (zequence)]

I installed 3.18 from here http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-vivid/.

No change. The function button will not toggle the hardware switch for Wifi, however coming out of sleep will automatically turn the hardware switch on.

Regarding the latest added tag, could a BIOS update solve this?

[Kaj Ailomaa (zequence)]

Updating the BIOS did not seem to change anything. The output of the command:

X551CAP.210
06/04/2014

[penalvch (penalvch)]

Kaj Ailomaa, did this problem not occur in a release prior to Trusty?

[Kaj Ailomaa (zequence)]

I just tried booting a live Ubuntu 12.04.5. The function button for wifi is still not working, but the wifi device is activated directly after boot.

[penalvch (penalvch)]

Kaj Ailomaa, would you have any prior Trusty kernel versions still installed to test to see if this is a regression?

[Launchpad Janitor (janitor)]

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