HP envy dv4 - radio kill hotkey does not work

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1118689

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

This is still an issue as for kernel 3.10 rc2. It works in Kernel 3.5..

What information can I provide to expedite resolution of this. Do I need to perform any additional steps?

Has this been looked at recently? I would really like to have this feature working on my laptop. I run Ubuntu religiously but this is a pain.

It worked in 12.04 LTS kernel 3.5 but after that it never worked again.

Status changed to 'Confirmed' because the bug affects multiple users.

@Tim,

The patch may no longer valid as HP changes some of their BIOS behaviours for wireless hotkey. Do you have any problems other than wireless hotkey?

After kernel 3.6, Linux kernel returns true for _OSI("Windows 2012"), and wireless hotkey triggers different event (not WMI). A different kernel (hp-wireless) is needed but it is not available until kernel 3.14.

Do you want to try mainline kernel later than 3.14 @ http://kernel.ubuntu.com/~kernel-ppa/mainline/?

If it doesn't work, will you please upload acpidump (sudo acpidump > acpi.log) for my references?

The original bug is caused by a bug in WMI driver in kernel 3.5; however, with _OSI("Windows 2012") = true, BIOS no longer uses WMI to control wireless, and therefore it can be fixed by another kernel driver (see https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1303737).

I verified it on HP 242 G2 (LP#1303737) with two kernel versions and it works pretty well.

bug 1303737 should be fixed by commit 15d75fcebdf78d316a980487eddcac8e4f1574c8, which is in Trusty as of Ubuntu-3.13.0-28.51. This commit is a cherry pick of upstream 54290fa6.

Can you test the 3.13.0-28.51 kernel and confirm if it fixes this bug or not? It can be downloaded from:
https://launchpad.net/~canonical-kernel-team/+archive/ppa/+files/linux-image-3.13.0-28-generic_3.13.0-28.51_amd64.deb

I had the same result as Edward Lin on LP#1303737 on HP Envy dv6 - the package in #8 does not work, but linux-image-3.13.0-28-generic_3.13.0-28.51~precise1_amd64.deb @ https://launchpad.net/~canonical-kernel-team/+archive/ppa/+build/6042244 works fine.

I found there are more than hp-wireless module are missing in deb from #8 on the same hardware. For example, lan and wlan stop working. The attached is output of lsmod on 3.13.0-28 kernel

The attached is output of lsmod on 3.18.0-24 kernel

I compiled kernel with UBUNTU: Ubuntu-3.13.0-32.57 (a33d370dc60413a4cfa520d26009831fd601a33b), and installed the following deb packages:

linux-headers-3.13.0-32-generic_3.13.0-32.57_amd64.deb
linux-headers-3.13.0-32_3.13.0-32.56_all.deb
linux-headers-3.13.0-32_3.13.0-32.57_all.deb
linux-image-3.13.0-32-generic_3.13.0-32.57_amd64.deb
linux-image-extra-3.13.0-32-generic_3.13.0-32.57_amd64.deb

The hp-wireless module is loaded correctly. and the F12 wireless button works perfectly.

This bug was nominated against a series that is no longer supported, ie quantal. The bug task representing the quantal nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

The Precise Pangolin has reached end of life, so this bug will not be fixed for that release