[Dell Vostro 3449] Wireless key does not work on 14.04.2 (3.16 kernel)

[Po-Hsu Lin]

CID: 201408-15447 Dell Vostro 3449

The wireless key does not work on this system at all.
acpi_osi=\"!Windows 2012\" parameter can't make it work.
And unlike bug 1434442, adding "options dell_laptop force_rfkill=1" into /etc/modprobe.d/dell.conf can't make it work as well.

ubuntu@201408-15447:~$ 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
keycode 29 press
^Ccaught signal 2, cleaning up...
ubuntu@201408-15447:~$

nothing could be detected by using "sudo showkey -s"

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-31-generic 3.16.0-31.43~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-31.43~14.04.1-generic 3.16.7-ckt5
Uname: Linux 3.16.0-31-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Mar 23 07:04:20 2015
InstallationDate: Installed on 2015-03-23 (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)

[Keng-Yu Lin (lexical)]

#define KEY_UNKNOWN 240

since Ubuntu moved from udev (keymap) to systemd (hwdb), the mapping may need updated.

[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 with the Dell ABCE patch (https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1434442/comments/7).

[Alex Hung (alexhung)]

The fix is included in Ubuntu-3.19.0-27.29