Bug 15702

Summary:	fn keys don't work on vaio vgn-bx296xp
Product:	Drivers	Reporter:	Teej (xteejyx)
Component:	Platform	Assignee:	Mattia Dongili (malattia)
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	akpm, alan, heinjan
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.34	Subsystem:
Regression:	No	Bisected commit-id:

Description Teej 2010-04-05 23:37:06 UTC

This bug was originally reported in Ubuntu at Launchpad https://bugs.launchpad.net/ubuntu/+source/linux/+bug/173366

" None of hotkeys of the sony vaio VGN-BX296XP seem to work apart from the mute button (which seems to be hw implemented).
 I contacted the developer of the sony_laptop module and he replied that my laptop seems to be using the GHKE method.
 The dmesg output shows the same scan code for ALL keys:

Use 'setkeycodes e075 <keycode>' to make it known.
[Unknown key released (translated set 2, code 0xf5 on isa0060/serio0)."

The problem is that every non-working FN-hotkey gives the same scancode, which suggests it could be kernel related.

Thank you.

Comment 1 heinjan 2010-04-06 21:06:05 UTC

There is a userspace utility fsfn which somehow captures the FN keypresses.
http://developer.berlios.de/bugs/?group_id=4604

Source code is browsable at:
http://svn.berlios.de/wsvn/fsfn/trunk/fsfn/src/#_trunk_fsfn_src_

The GHKE ACPI method used (>2 years ago) to work for the FN-keys in the vanilla kernel. If I read http://www.mail-archive.com/linux-acpi@vger.kernel.org/msg04257.html it seems this was the case when sony_acpi.c was still in use.