[Pkg-fglrx-devel] Bug#719536: Bug#719536: fglrx-driver: Cannot change brightness

[Carlo Marchiori]

Sorry, the problem happened with the version in experimental, which is
actually old.
Reverting to version in testing everything appears correct and works fine.
Carlo.


2013/8/14 Patrick Matthäi <pmatthaei at debian.org>

> You realy should report such issues to upstream, since we can not do
> *anything* about such issues.
>
> @Andreas and Michael:
> Any ideas what we can do to avoid so much upstream-only related bug
> reports?
>
> Am 14.08.2013 15:21, schrieb Carlo Marchiori:
>
>  Some further information (copying from a report erroneously filed to the
>> linux-image package).
>>
>> At first I could not control backlight at all.
>> Then, following forums and wikis on the net i tried to pass the
>> acpi_backlight=vendor parameter to the kernel, and now it works... a
>> little
>> bit.
>>
>> What works is that all methods, the keyboard special keys, xbacklight,
>> gnome-
>> control-center, all udpate the same file, in my case
>> /sys/class/backlight/samsung/**brightness.
>>
>> But. First that file is reset to the maximum value at every restart. I
>> worked
>> around this by echoing something into it in /etc/rc.local.
>>
>> Second, and worst, when I change the file value at runtime (by any of
>> the above
>> methods), the value is applied... sometimes. I mean, I keep changing the
>> value
>> and once a in while the brightness changes, after 2, 5, 10 seconds, and
>> I have to
>> be lucky that it happens at the right brightness. If you just change the
>> value
>> without keeping trying, the value is not usually applied.
>>
>> Regards, Carlo.
>>
>
> --
> /*
> Mit freundlichem Gruß / With kind regards,
>  Patrick Matthäi
>  GNU/Linux Debian Developer
>
>   Blog: http://www.linux-dev.org/
> E-Mail: pmatthaei at debian.org
>         patrick at linux-dev.org
> */
>
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