amd64 brightness has lowest value after boot

amd64 brightness has lowest value after boot

[Rathgeb Markus]

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.

Re: amd64 brightness has lowest value after boot

[Rathgeb Markus]

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.
> -
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

Re: amd64 brightness has lowest value after boot

[yhlu]

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

YH

On 6/29/06, Rathgeb Markus <maggu2810@web.de> wrote:
> 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.
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Re: amd64 brightness has lowest value after boot

[Rathgeb Markus]

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.

yhlu wrote:
> You may try to dump the dsdt and modify it and put one compiled
> modified dsdt in your initrd.
> 
> YH
>