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[Bug 591651] Lenovo 3000 G410: Backlight brightness Fn-keys does not work.
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 1 Apr 2010 14:33:05 +0000
  • Message-id: <20100401143305.3AD49CC7CD@xxxxxxxxxxxxxxxxxxxxxx>
http://bugzilla.novell.com/show_bug.cgi?id=591651

http://bugzilla.novell.com/show_bug.cgi?id=591651#c7


Thomas Renninger <trenn@xxxxxxxxxx> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |astarikovskiy@xxxxxxxxxx

--- Comment #7 from Thomas Renninger <trenn@xxxxxxxxxx> 2010-04-01 14:33:03 UTC
---
I expect that it's this that got executed on 11.2:
Method (_Q11, 0, NotSerialized)
{
P8XH (Zero, 0x11)
If (IGDS)
{
^^^GFX0.BRTN (0x87)
Notify (VPC0, 0x80)
}
Else
{
Notify (^^^PEGP.VGA.LCD, 0x87)
Notify (VPC0, 0x80)
}
}

Method (_Q12, 0, NotSerialized)
{
P8XH (Zero, 0x12)
If (IGDS)
{
^^^GFX0.BRTN (0x86)
Notify (VPC0, 0x80)
}
Else
{
Notify (^^^PEGP.VGA.LCD, 0x86)
Notify (VPC0, 0x80)
}
}
_Q means the event should come through the EC.
Can you do (11.3 is enough):
watch -n1 cat /proc/interrupts
then hit the brightness buttons.
Does IRQ 9 increase if you hit the button?
If you get interrupts without hitting the button do:
rmmod thermal
rmmod battery
rmmod fan
and try again.

Does the battery show valid info (e.g. via an X application) or via:
cat /proc/acpi/battery/*/*
(be careful the battery driver is loaded!)
I wonder whether the EC is working at all.

Please also provide dmesg output of 11.3 boot.

Kirill: If you provide info, please check the box below the comment field:
"This comment provides the needed information."

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