[Bug 1310248] Re: [Lenovo Thinkpad X220] wireless switch doesn't generate an acpi event

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** Tags added: kernel-autoclosed kernel-autoclosed-expired

** Changed in: linux (Ubuntu)
Status: Triaged => Expired

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https://bugs.launchpad.net/bugs/1310248

Title:
[Lenovo Thinkpad X220] wireless switch doesn't generate an acpi event

Status in linux package in Ubuntu:
Expired

Bug description:
I use a customized acpi event script to disable bluetooth on my
Thinkpad x220, if I toggle the hardware wifi switch (not Fn+F5):

$ cat /etc/acpi/ibm-wireless-switch.sh
#!/bin/sh

test -f /usr/share/acpi-support/state-funcs || exit 0

# Find and toggle wireless of bluetooth devices on ThinkPads

. /usr/share/acpi-support/state-funcs

# disable bluetooth on wireless activate to save battery
if isAnyWirelessPoweredOn; then
    # Wireless was turned on
    logger "Wireless switch turned on: Disable bluetooth."
    echo disable > /proc/acpi/ibm/bluetooth
fi

This used to work fine with Ubuntu 13.10, however it stopped working
with 14.04. More precisely the switch doesnt generate an acpi event
anymore. To check that I used acpi_listen.

$ acpi_listen -t 10
# nothing happens here

Using 14.04 with kernel version 3.11.0-19 from 13.10 the switch works fine again:
$ acpi_listen -t 10
ibm/hotkey HKEY 00000080 00007000

Upstream URL: https://www.mail-archive.com/platform-
driver-x86@vger.kernel.org/msg05283.html

---
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: tobias 2256 F.... pulseaudio
                      tobias 2324 F.... pulseaudio
CurrentDesktop: KDE
DistroRelease: Ubuntu 14.04
InstallationDate: Installed on 2013-03-24 (438 days ago)
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
Lsusb:
 Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 04f2:b217 Chicony Electronics Co., Ltd Lenovo Integrated Camera (0.3MP)
 Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 4291ZPK
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic root=UUID=9a62bd25-d065-4486-a18d-5a3f2a6c3473 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-27-generic N/A
 linux-backports-modules-3.13.0-27-generic N/A
 linux-firmware 1.127.2
Tags: trusty
Uname: Linux 3.13.0-27-generic x86_64
UpgradeStatus: Upgraded to trusty on 2014-04-18 (48 days ago)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo vboxusers
_MarkForUpload: True
dmi.bios.date: 07/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET69WW (1.39 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4291ZPK
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8DET69WW(1.39):bd07/18/2013:svnLENOVO:pn4291ZPK:pvrThinkPadX220:rvnLENOVO:rn4291ZPK:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4291ZPK
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO

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