sony-vaio-z-series team mailing list archive

[Joël Bourquard <joel.bourquard@xxxxxxxxx>]

Hi Wouter,

Thanks for your response. Sorry for bringing KDE into the picture. Now
let's drop it and look at the pure userspace level, if you don't mind :-)

So here's what I get:

*With nothing (blacklisted sony_laptop):
*No way to set brightness, as far as I know.

*With custom sony_laptop module:
*cat /sys/devices/virtual/backlight/sony/max_brightness  =>  8
Then I can echo the value 0-9 to
/sys/devices/virtual/backlight/sony/brightness
So I have 9 brightness levels.

*With original sony_laptop module (Kernel 3.2.6-gentoo):
*cat /sys/devices/virtual/backlight/sony/max_brightness  => 247 !!!
Then I can echo the value 0-247 to
/sys/devices/virtual/backlight/sony/brightness
So I have 248 brightness levels!!!


See?  There's a huge difference between the stock sony_laptop and the Vaio
Z improved one...  Is there a way to fix this regression?

Best regards,

Joël



On Tue, Feb 14, 2012 at 5:26 PM, Wouter van der Graaf <wouter@xxxxxxxxx>wrote:

> Hi,
>
> I also have a Z13 with the sony-laptop module installed. I have 8 levels
> though, without doing anything special.
>
> Wouter
>
>
> Op di 14 feb 2012 17:22:58 CET, Joël Bourquard schreef:
>
>> Hi all,
>>
>> Today I just compiled the latest Linux kernel 3.2.6 on my Z13.  Once I
>> boot into KDE, I have 20 usable brightness levels (let's say 0-19).
>>
>> Then I checkout, compile and install the custom sony-laptop module from:
>> git://gitorious.org/sony-**laptop-zseries/sony-laptop-**zseries.git<http://gitorious.org/sony-laptop-zseries/sony-laptop-zseries.git><
>> http://gitorious.org/sony-**laptop-zseries/sony-laptop-**zseries.git<http://gitorious.org/sony-laptop-zseries/sony-laptop-zseries.git>
>> >
>>
>>
>> This module is great because we can limit the battery charger to 80%.
>>  But unfortunately, with it I only get 5 usable brightness levels (0-4)
>> which is way too coarse imho!
>>
>> Does someone know a way to fix this? I looked at the "sony-laptop.c"
>> source code and the #define SONY_MAX_BRIGHTNESS is equal to 8 in both
>> files...
>>
>> Thanks in advance!
>>
>> Best regards,
>>
>> Joël
>>
>>
>> ______________________________**_________________
>> Mailing list: https://launchpad.net/~sony-**vaio-z-series<https://launchpad.net/%7Esony-vaio-z-series>
>> Post to     : sony-vaio-z-series@lists.**launchpad.net<sony-vaio-z-series@xxxxxxxxxxxxxxxxxxx>
>> Unsubscribe : https://launchpad.net/~sony-**vaio-z-series<https://launchpad.net/%7Esony-vaio-z-series>
>> More help   : https://help.launchpad.net/**ListHelp<https://help.launchpad.net/ListHelp>
>>
>
>
>
> --
> Wouter van der Graaf
> entreprogrammeur and senior web developer
>
> d y n o r a
> web developers ~ both ends technology, interaction and aesthetics
>
> +31 (0)6 2893 0615 | wouter@xxxxxxxxx
>
> Burg. de Bruïnelaan 95 | 3331 AC Zwijndrecht | NL
> +31 (0)78 843 3139 | contact@xxxxxxxxx | www.dynora.nl
>
>