A solution for this problem that works for me (ubuntu 10.10,
2.6.35-24 kernel) is described here
http://ubuntuforums.org/showthread.php?t=1612560
In a nutshell, add the boot option "acpi_osi=" to grub, by executing
$ gksudo gedit /etc/default/grub
(which calls an editor) to replace in the file
Well, that's odd. There's certainly support for ACPI backlight control
in your firmware, and it goes via opregion so it should work correctly.
I think the thing to do here is to have the panasonic driver bail if
there's ACPI backlight support, and then figure out why the ACPI video
driver isn't
On Tue, Jan 04, 2011 at 06:14:40AM +0800, Cristopher Camacho wrote:
> No, there is no. Only the /sys/class/backlight/panasonic/ directory is
> present.
Can you attach the output of the acpidump command on your system?
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Is there a /sys/class/backlight/acpi_video0 directory as well as the
Panasonic one?
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No, there is no. Only the /sys/class/backlight/panasonic/ directory is present.
Cristopher
On Tue, Jan 4, 2011 at 5:33 AM, Matthew Garrett wrote:
> Is there a /sys/class/backlight/acpi_video0 directory as well as the
> Panasonic one?
>
> --
> Matthew Garrett | mj...@srcf.ucam.org
>
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On Mon, Jan 03, 2011 at 10:40:03AM +0100, Thomas Renninger wrote:
> On Wednesday 29 December 2010 16:24:28 Nicolas Limare wrote:
> > I also received a message reportin for this bug on a Panasonic CF-52.
> >
> > Can I in any way help this bug get more attention?
> >
> What is Bug#587014? Do you ha
On Wednesday 29 December 2010 16:24:28 Nicolas Limare wrote:
> I also received a message reportin for this bug on a Panasonic CF-52.
>
> Can I in any way help this bug get more attention?
>
What is Bug#587014? Do you have a link?
Panasonic is the only driver which will always try to use
native b
The latest squeeze kernel (2.6.32-29) improved the situation. Now,
when the system boots, the backlight is not automatically set to its
maximum level. So, it is possible to set the backlight level
during the BIOS boot phase, and keep this level.
This is a big improvement since now the system is us
I also received a message reportin for this bug on a Panasonic CF-52.
Can I in any way help this bug get more attention?
Just in case, I am at 27C3 now, with my laptop, so if anyone there
wants to directly investigate the issue just let me know.
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Nicolas LIMARE
http://nicolas.limare.net/
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