Module acer-wmi should not overwrite manual rfkill calls

[Björn Michaelsen]

With the acer-wmi kernel module loaded, wireless is disabled by default.
"rfkill list" shows:
0: ideapad_wlan: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: ideapad_bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
2: brcmwl-0: Wireless LAN
 Soft blocked: yes
 Hard blocked: yes
3: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
4: acer-wireless: Wireless LAN
 Soft blocked: yes
 Hard blocked: no
"sudo rfkill unblock 4" resultis in:
Apr 30 13:31:20 lithium NetworkManager[4408]: <info> WiFi now enabled by radio killswitch
Apr 30 13:31:20 lithium NetworkManager[4408]: <info> (eth1): bringing up device.
Apr 30 13:31:20 lithium NetworkManager[4408]: <info> (eth1): supplicant interface state: starting -> ready
Apr 30 13:31:20 lithium NetworkManager[4408]: <info> (eth1): device state change: 2 -> 3 (reason 42)
Apr 30 13:31:21 lithium NetworkManager[4408]: <info> WiFi now disabled by radio killswitch
Apr 30 13:31:21 lithium NetworkManager[4408]: <info> (eth1): device state change: 3 -> 2 (reason 0)
Apr 30 13:31:21 lithium NetworkManager[4408]: <info> (eth1): deactivating device (reason: 0).
Apr 30 13:31:21 lithium NetworkManager[4408]: <info> Policy set 'Auto eth0' (eth0) as default for IPv4 routing and DNS.
Apr 30 13:31:21 lithium NetworkManager[4408]: <info> Policy set 'Auto eth0' (eth0) as default for IPv4 routing and DNS.
Apr 30 13:31:21 lithium NetworkManager[4408]: <info> (eth1): taking down device.
being added to the /var/log/syslog. That is the interface is enabled and immediately taken down again.

Doing a "sudo rmmod acer_wmi" solves the problem: Wireless works as expected then.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bjoern 1775 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xc0000000 irq 17'
   Mixer name : 'Nvidia MCP79/7A HDMI'
   Components : 'HDA:10ec0269,17aa6004,00100004 HDA:10de0007,10de0101,00100100'
   Controls : 17
   Simple ctrls : 9
Date: Sat Apr 30 13:26:58 2011
HibernationDevice: RESUME=UUID=d62cc88d-7a31-4a45-8cd1-f56ea4450b4e
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: LENOVO 20021,2959
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=4751bcb1-5bd7-49b8-8d37-1f41a9bb7dab ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.52
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-04-29 (0 days ago)
dmi.bios.date: 10/16/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 21CN25WW
dmi.board.name: MoutCook
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr21CN25WW:bd10/16/2009:svnLENOVO:pn20021,2959:pvrLenovoIdeapadS12:rvnLENOVO:rnMoutCook:rvrNotApplicable:cvnLENOVO:ct10:cvrN/A:
dmi.product.name: 20021,2959
dmi.product.version: Lenovo Ideapad S12
dmi.sys.vendor: LENOVO

[Björn Michaelsen (bjoern-michaelsen)]

A little more investigation proofed that, alas, this does not solve the problem on the Ideapad S12, so this bug is mostly invalid.

Still, the acer-wmi module overrides the blockstate after a manual "rfkill" command with the state it expects from the Fn+F5/F6 keyboard combos. I dont think it should do that (rfkill requires root-priviledges after all). Updated title accordingly.

[Trevor Duke (trevor-duke)]

ya, I am getting mixed results as far as doing the rfkill unblock once, and it will remove the hardblock, and then going into a recovery console and rfkill unblock, and then the soft block is removed but the hardblock is there! have tried toggling hardware switch as well.

[Ike Panhc (ikepanhc)]

Looks like the same issue of bug 668234. Set as duplicate.

There is a fix needs to be tested at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/668234/comments/7

Please help on testing and report the result. Thanks a lot.