[Bug 216221] Re: Samsung Q70 - error while modprobing video, also can't adjust backlight

[Wildy]

Okay, on my Arch Q70 laptop, with a 2.6.27 custom-built kernel, I can
now adjust brightness from the console with Fn+Up/Dn keys. X recognizes
these keys also, but the Nvidia X driver wouldn't let to change the
screen brightness from within X (this issue is really LONG aged). The
issue is definitely in the Nvidia driver (I'm using the latest, 177.80,
right now).

As for general laptop usage, I'd recommend to upgrade to 2.6.27 kernel
and change brightness from the console with Fn-Up/Dn keys, because there
is no need to use /proc/video/.../brightness with 2.6.27.

For Ubuntu users, it might help to upgrade to the latest 8.10 beta, but
do it _at your own risk_, as your mileage may vary with beta's :)
If you don't want to upgrade to the beta tree, the only solution is to
recompile the latest kernel from kernel.org yourself. The guide for that
is at 

В Чтв, 16/10/2008 в 09:23 +0000, Simon Gibbs пишет:
> As a noob, I don't know what "modprobe" is but I have a Q70 running
> Ubuntu 8.04 - fully patched - with Linux kernel 2.6.24-21 generic. I'm
> willing to answer questions if required in order to help get this
> resolved - its incredibly irritating!
> 
> Something I did try and can report is an error from the script on bug
> 248906:
> 
> Error org.freedesktop.DBus.Error.UnknownMethod: Method "GetBrightness"
> with signature "" on interface "org.freedesktop.Hal.Device.LaptopPanel"
> doesn't exist
>

-- 
Samsung Q70 - error while modprobing video, also can't adjust backlight
https://bugs.launchpad.net/bugs/216221
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