Re: ACPI Problems on Sony Vaio SZ61MN, no brightness ctrl, no power button

Sebastian Pohl
2008-07-16T15:25:09Z

Hi!

Mattia Dongili wrote:
> Hey there,
>
> sorry for being late... as usually happens recently.
>
>
:)
> On Wed, Jul 16, 2008 at 11:32:05AM +0200, Sebastian Pohl wrote:
>
>> Hi!
>>
> ...
>
>>> Please file a new bug report for each of the problem (power button and
>>> brightness) at http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
>>> and attach the files listed below. :)
>>>
>>>
>>>
>> Submitted both, after checking for existing, similar bugs :)
>>
>> http://bugzilla.kernel.org/show_bug.cgi?id=11095
>> http://bugzilla.kernel.org/show_bug.cgi?id=11096
>>
>>> On Tue, 2008-07-15 at 15:20 +0200, Sebastian Pohl wrote:
>>>
>>>
>>>> Hi there!
>>>>
>>>> First i hope my other messages have realy disappereard. I send them
>>>> yesterday from a windows machine and as described in the FAQ it
>>>> seemed to be blocked because of the charset. If by any chance that
>>>> message arrives please excuse it and ignore it!
>>>>
>>>> My Problem exists on a Sony Vaio Laptop with the modelcode SZ61MN/B.
>>>> I am currently running Archlinux with a 2.6.25.11-1 kernel. Most
>>>> things on the notebook seem to be working, even the lidswitch is
>>>> recognized.
>>>>
>>>> Problems are the non-working power button,
>>>>
>>>>
>>> what do you mean by non-working power button?
>>> Pressing the power button doesn't power off the laptop, right?
>>> what if you press it for four seconds?
>>>
>>> please run "grep . /sys/firmware/acpi/interrupts/*" both before and
>>> after pressing the power button and attach the result.
>>>
>>>
>>>
>> Yes, youre right, pressing the button has no effect. Pressing 4 seconds
>> powers off the laptop. Is that done via acpi too? Thought that was a
>> hardwarething.
>> Uploaded both outputs here:
>> http://www.twisted-artwork.de/vault/linux/powerbutton.txt
>>
>
> this is interesting, I never saw something like that for vaios and
> linux.
>
>
Its not a big problem, its just annoying...
>>>> thats a real problem, just annoying, and what realy is a pain, the
>>>> backlight brigthness is not adjustable, so i always get a nice suntan
>>>> from the screen. That realy sucks at night...
>>>>
> ...
>
>>>> I tried for about a week now to find a solution and i worked my way
>>>> through all of the possible solutions called sony-laptop, sonypi,
>>>> sony-acpi but none of them worked for me.
>>>>
>>>>
>>> what did you get?
>>> empty /sys/class/backlight/ entry with any of these drivers loaded?
>>> or the backlight I/F exists but they don't work for you?
>>>
>>>
>>>
>> The backlight files exist but they dont change anything. When i use the
>> sonypi driver
>> i can change some of the stuff with the program spicctrl. Powering of
>> the internal devices
>> works, adjusting fanspeed works, adjusting backlight just has no effects.
>>
>
> The SZ series have a stamina/speed switch switch between 2 video cards.
> Usually one is an NVidia (for speed) and one is an Intel (for stamina).
> On the NVidia there is nothing we can do (you can try nvclock or any
> nvidia proprietary tool as documented on my wiki[1]), while for the
> Intel card it's a different story (again documented on my wiki).
> If you have no luck with the sony-laptop provided backlight control you
> can try xbacklight that, as far as I can see[2], should work on your
> Intel chipset.
>
> hope this helps
>
> [1]: http://www.linux.it/~malattia/wiki/index.php/Sony-laptop#Brightness
> [2]: https://bugs.launchpad.net/ubuntu/+source/xbacklight/+bug/173652
>

GREAT! [2] helped! Now i can change the backlight with xbacklight -set
value.
As you said this only works for the intel chipset with is the graphic
adapter i use when i am using the laptop mobile. So its annoying that i
cant change the brightness wit the nvidia card but not as much of a
problem as it was with the intel chipset. As the nvidia driver is a
propietrary one, i dont think that is a thing i or anyone here can solve?

Thank you so much! Is the brigthness issue now still a bug or should i
delete it from bugzilla?

regards

Sebastian