linux-kernel - BUG: Again: Fn keys not working on EliteBook 8460p after b253c9d1d858a3f115f791ee4fe2b9399ae7dbbd

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Date:	Wed, 14 Aug 2013 10:19:53 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	Kyle Evans <kvans32@...il.com>,
	Matthew Garrett <matthew.garrett@...ula.com>
Cc:	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: BUG: Again: Fn keys not working on EliteBook 8460p after b253c9d1d858a3f115f791ee4fe2b9399ae7dbbd

On Saturday 13 April 2013 03:31:17 Pali Rohár wrote:
> Hello,
> 
> all Fn keys, wifi switch, web and mute buttons not working
> anymore on my notebook HP EliteBook 8460p. I bisected git
> commit which broke all above keys:
> fabf85e3ca15d5b94058f391dac8df870cdd427a
> 
> When I reverted that commit after reboot buttons started
> working again. Can you fix it or revert that broken commit?
> This is critical problem, which caused my notebook to be
> unusable...

Hello, same problem happen again on my notebook. Problematic 
commit is now: b253c9d1d858a3f115f791ee4fe2b9399ae7dbbd
hp-wmi: Enable hotkeys on some systems

When I disabled calling function hp_wmi_enable_hotkeys() from 
hp_wmi_init() keys started working again after reboot.

This problem is present in 3.11 rc5. Please can you do something 
so keys on my notebook will work again and it will not be broken 
again in next kernel release? If you need some debug data or 
something else, I can help.

In mail from 16.04.2013 you provided similar patch but with
#define HPWMI_BIOS_QUERY 0x8
I tested that patch and that does not broke keys.

But commit b253c9d1d858a3f115f791ee4fe2b9399ae7dbbd have
#define HPWMI_BIOS_QUERY 0x9
which broke keys again...

-- 
Pali Rohár
pali.rohar@...il.com

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