Re: no brightness with acpi video since 3.3 [was Re: Issues with the sony-platform module]

[Mattia Dongili <malattia@linux.it>]

On Fri, Jun 15, 2012 at 09:45:02AM +0200, Karol Babioch wrote:
> Hi,
> 
> it seems that the first version was blocked due to the attachments,
> which were quite big, so I'm resending this without any attachments this
> time. You'll find links to the files over on pastebin.mozilla.org.
> 
> Am 14.06.2012 22:39, schrieb Mattia Dongili:
> > You can boot with acpi_backlight=vendor and get brightness control back
> > but the issue with acpi_video remains.
> Unfortunately that doesn't work either . According to the dmesg output
> the key presses itself get registered by the sony_module in both cases.
> However when booting with acpi_backlight=vendor I don't get any
> brightness control at all, whereas when booting without it the

you are running a 3.3 kernel with the latest sony-laptop patches, right?
if so you will need this bug fix to get brightness control back:
http://www.mail-archive.com/platform-driver-x86@vger.kernel.org/msg03294.html

could you please test it?

Thanks
-- 
mattia
:wq!