[Dell Inspiron 7347] Wireless key does not work on 3.16 kernel

[Po-Hsu Lin]

CID: 201406-15234 Dell Inspiron 7347

The wireless key does not work on this system at all with 14.04.2 (3.16 kernel)
Maybe it's related to the udev -> systemd migration (similar to bug 1434442)

ubuntu@201406-15234:~$ 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 28 release
keycode 240 press
keycode 240 release
^Ccaught signal 2, cleaning up...
ubuntu@201406-15234:~$

Nothing can be detected by the sudo showkey -s command

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-30-generic 3.16.0-30.40~14.04.1 [modified: boot/vmlinuz-3.16.0-30-generic]
ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Apr 2 05:12:56 2015
InstallationDate: Installed on 2015-04-02 (0 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)

[Po-Hsu Lin (cypressyew)]

Verified with 14.04.1 LiveUSB, the wireless key does not work on it as well.

[Po-Hsu Lin (cypressyew)]

Also affect 201406-15257 Dell Inspiron 7347

[Alex Hung (alexhung)]

https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1434442/comments/7

[Phidias (phidias-chiang)]

https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1434442/comments/8

[Keng-Yu Lin (lexical)]

alex will help to upstream the quirk patch in acpi/blacklist.c

[Alex Hung (alexhung)]

The fix is included in Ubuntu-3.19.0-27.29