[Lenovo ThinkPad ?40 series] Wireless key cannot turn BT off

[Po-Hsu Lin]

CID: 201308-14073 Lenovo T440s with 14.04.1(trusty)
CID: 201301-12474 with 12.04.5(lts-trusty)

The wireless hotkey can only control the wireless network, it can't control the Bluetooth.

Steps:
1. Install 14.04 + update (3.13.0-40)
2. Turn BT off with the wireless hotkey

Expected result:
* Bluetooth can be controlled by the wireless hotkey.

Actual result:
* Only wireless network will be turned off.

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: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ubuntu 1679 F.... pulseaudio
 /dev/snd/controlC0: ubuntu 1679 F.... pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Tue Nov 25 03:03:31 2014
HibernationDevice: RESUME=UUID=a5a46803-6e30-4659-a224-b651d53e2536
InstallationDate: Installed on 2014-11-25 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 5986:026a Acer, Inc
 Bus 001 Device 003: ID 8087:07dc Intel Corp.
 Bus 001 Device 002: ID 0bdb:193e Ericsson Business Mobile Networks BV
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20ARZ00SUS
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic root=UUID=57ef6133-f168-455e-a5e3-773a4131cbe0 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 1.127.8
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/07/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: GJET53WW (2.01 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20ARZ00SUS
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGJET53WW(2.01):bd08/07/2013:svnLENOVO:pn20ARZ00SUS:pvrThinkPadT440s:rvnLENOVO:rn20ARZ00SUS:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20ARZ00SUS
dmi.product.version: ThinkPad T440s
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Po-Hsu Lin (cypressyew)]

Also note that it can't turn the mobile broadband off as well.

[Anthony Wong (anthonywong)]

I can't find this bug during enablement. Can acpi_osi=\"!Windows 2012\" workaround this issue?

[Po-Hsu Lin (cypressyew)]

Hello Anthony,
the tweak: acpi_osi=\"!Windows 2012\" in grub cannot fix this issue on this laptop with 14.04 (3.13.0-24).

Debugging information:
ubuntu@201308-14073:~$ sudo showkey -k
kb mode was ?UNKNOWN?
[ if you are trying this under X, it might not work
since the X server is also reading /dev/console ]

press any key (program terminates 10s after last keypress)...
keycode 238 press
keycode 238 release
^Ccaught signal 2, cleaning up...

ubuntu@201308-14073:~$ sudo showkey -s
kb mode was ?UNKNOWN?
[ if you are trying this under X, it might not work
since the X server is also reading /dev/console ]

press any key (program terminates 10s after last keypress)...
0x9c
0xe0 0x73 0xe0 0xf3
0xe0 0x73 0xe0 0xf3
^Ccaught signal 2, cleaning up...

ubuntu@201308-14073:~$ xev | sed -n 's/^.*state \([0-9].*\), keycode *\([0-9]\+\) *\(.*\), .*$/keycode \2 = \3, state = \1/p'
keycode 36 = (keysym 0xff0d, Return), state = 0x0
keycode 246 = (keysym 0x1008ff95, XF86WLAN), state = 0x0
keycode 246 = (keysym 0x1008ff95, XF86WLAN), state = 0x0
keycode 246 = (keysym 0x1008ff95, XF86WLAN), state = 0x0
keycode 246 = (keysym 0x1008ff95, XF86WLAN), state = 0x0

rfkill list after pressing the wireless key:
ubuntu@201308-14073:~$ rfkill list
0: tpacpi_bluetooth_sw: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: tpacpi_wwan_sw: Wireless WAN
 Soft blocked: no
 Hard blocked: no
2: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
3: phy0: Wireless LAN
 Soft blocked: yes
 Hard blocked: no

This issue could be found on other Lenovo laptops as well:
https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1355019

[Adam Lee (adam8157)]

This is not a kernel's but acpi-support's bug.

/etc/acpi/events/ibm-wireless should respond "button/wlan WLAN 00000080 00000000"

[Adam Lee (adam8157)]

additional info for #6:

/etc/acpi/events/ibm-wireless better check if it's a thinkpad model at first, or this generic WLAN key will affect other laptops too.

[Adam Lee (adam8157)]

patch has been submitted to Debian and Ubuntu maintainers

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "0001-respond-Lenovo-ThinkPad-40-series-Fn-F8.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Michael Meskes (meskes)]

Could anyone please explain to me why this bug was assigned to me? I'm not part of the team that takes care of this package for Ubuntu.

[Adam Lee (adam8157)]

Hi, @Michael

I assigned to you because I noticed you are the maintainer of Debian's acpi-support package, and we grab updates from Debian. Sorry for not explained.

btw, I sent that package to you and debian acpi dev list at Dec 25 2014, no response yet.. could you please take a look?

[Michael Meskes (meskes)]

> I assigned to you because I noticed you are the maintainer of Debian's
> acpi-support package, and we grab updates from Debian. Sorry for not
> explained.

While this is true for a lot of packages, it's completely the opposite for
acpi-support. Upstream for acpi-support is Ubuntu, Debian adds a lot of
changes to the Ubuntu version, but those do not make their way back.

> btw, I sent that package to you and debian acpi dev list at Dec 25 2014,
> no response yet.. could you please take a look?

Yes, I saw your email, but with Debian's freeze I haven't spend any time on
new packages lately. Normal workflow will resume shortly.

Michael
--
Michael Meskes
Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
Michael at BorussiaFan dot De, Meskes at (Debian|Postgresql) dot Org
Jabber: michael.meskes at gmail dot com
VfL Borussia! Força Barça! Go SF 49ers! Use Debian GNU/Linux, PostgreSQL

[Steve Langasek (vorlon)]

I don't believe the change to /etc/acpi/ibm-wireless.sh is correct.

+rfkill list | grep tpacpi_bluetooth_sw || exit 0
+

If a machine has wireless but no bluetooth antenna, this change has the affect of preventing the switch from toggling the wireless state. That's not what we want to have happen here.

[Adam Lee (adam8157)]

@Steve, thanks, here is the v2 patch only acts on new using-general-acpi-event ThinkPad models.

[Adam Lee (adam8157)]

additional explanation of the v2 patch:

that "rfkill list | grep tpacpi_bluetooth_sw || exit 0" only skips new using-general-acpi-event and having-no-thinkpad-bt models, which falls back to the state without this patch, wifi could be toggled(but bt couldn't), so it's safe and what we expect.

[Gabriel Zhi Chen (gabrielzchen)]

The issue could be reproduced on
Lenovo E450, CID 201407-15368 with 14.04.2 (utopic)
Lenovo E450, CID 201408-15472 with 14.04.2 (utopic)
Lenovo E555, CID 201411-16166 with 14.04.2 (utopic)

 $ acpi_listen

 button/wlan WLAN 00000080 00000000 K

[Anthony Wong (anthonywong)]

Steve, do you have any comment to the v2 patch in #14?

[Gabriel Zhi Chen (gabrielzchen)]

The issue could be reproduced on
Lenovo E450, CID 201408-15790 with 14.04.2 (utopic)
Lenovo E550, CID 201411-16167 with 14.04.2 (utopic)

 $ acpi_listen

 button/wlan WLAN 00000080 00000000 K