>>>>> In <20081016235647.GA3009@xxxxxxxxxxxxxxxxxxxxxxxx>
>>>>> Norbert Preining <preining@xxxxxxxx> wrote:
>> Hi all,
>>
>> I digged a bit through the net and everything I found is that the Fn-F5
>> and -F6 (increase and decrease brightness) do nothing. Furthermore,
>> echoing anything between 0 and 7 to /sys/class/backlight/sony/brightness
>> also does nothing. Same with xbacklight.
They are 2 different problems, here.
1) Fn key handling don't work
Fn key handling by sony-laptop driver does not work on VGN-Z.
Fn key or Fn key + some other function key press does not rise
evdev and acpi event on this machine. Some work will be needed...
2) backlight control don't work
Backlight control on VAIO will be handled by Sony NC driver in
sony-acpi. VGN-Z* have Sony NC device [1], but SNC driver will not
enable it.
Backlight control without enabled SNC will not work via both
ACPI backlight(/sys/class/backlight/acpi_video0/brightness) and
sony-acpi backlight(/sys/class/backlight/sony/brightness)
Entry for VGN-Z* series should be added in sony_nc_ids table
of sony-laptop.c, patch bellow.
With SNC enabled, it works via /sys/class/backlight/sony/brightness.
[1]: http://hanzubon.jp/tmp/VGN-Z90S/DSDT.dsl.txt
See device(SNC) in this DSDT.
-----
>From a013a2a001eb559a8e775060746786f142678db0 Mon Sep 17 00:00:00 2001
From: ISHIKAWA Mutsumi <ishikawa@xxxxxxxxxxx>
Date: Fri, 17 Oct 2008 09:16:08 +0900
Subject: [PATCH] enable Sony NC driver on VGN-Z models
Enable Sony NC driver on VAIO Z series
Signed-off-by: ISHIKAWA Mutsumi <ishikawa@xxxxxxxxxxx>
---
drivers/misc/sony-laptop.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 60775be..e40d491 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -889,6 +889,15 @@ static const struct dmi_system_id sony_nc_ids[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
},
},
+ {
+ .ident = "Sony Vaio Z Series",
+ .callback = sony_nc_C_enable,
+ .driver_data = sony_C_events,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z"),
+ },
+ },
{ }
};
--
1.5.6.5
--
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