amd64 brightness has lowest value after boot

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".)

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.

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?

You may try to dump the dsdt and modify it and put one compiled modified dsdt in your initrd.

YH

I am still using a modified dsdt.

Here the method to decrease the brightness

                Method (_Q12, 0, NotSerialized)
                {
                    Store (0x12, ^^PIB.Z002)
                    Store (0x86, PSCM)
                    Store (Zero, SMIC)
                }

Here the method to increase the brightness

                Method (_Q13, 0, NotSerialized)
                {
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                }

So i changed it to that:

                Method (_Q13, 0, NotSerialized)
                {
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                    Store (0x13, ^^PIB.Z002)
                    Store (0x87, PSCM)
                    Store (Zero, SMIC)
                }

Now i press the "increase brightness" key only once and have the highest value.
But how can i do it automaticly at boot-time.
When i insert the "Store lines" in a other Method that is executed at boot it do not work.