Re: amd64 brightness has lowest value after boot

[Rathgeb Markus <maggu2810@web.de>]

Hi!
I find out (via acpi debug) that this are the execution methods:
decrease brightness: \_SB_.PCI0.EC__._Q12
increase brightness: \_SB_.PCI0.EC__._Q13

Can i execute this methods from hand? whitout press the keys?

Rathgeb Markus wrote:
> Hi!
> I have read the mailinglist for over a year and never heard about a
> similar problem till last month. But there was no answer given.
> If i use a 32 BIT linux the problem DO NOT occur, but for a few month I
> have changed again to a 64 bit linux system (I used 64 bit a year before
> and there was the same problem).
> Everytime after the message "Booting the Kernel" (all versions I
> prepared till 2.6.16) the displays brightness changes to the
> lowest value, so I have to press the hotkeys till the brightness has an
> acceptable value. (this also happens by an ordinary boot without resume.
> I notice that because in the attached email the person writes "My
> problem is that after resume".)
>>From time to time the hotkeys "are confused" (or do not work), too. I
> press the key to
> increase the value and it go hell, dark, hell, hell, dark etc. (it does
> what it want *g*).
> Please help me ;-)
> and excuse my english.
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