Comment 46 for bug 765438

On my laptop eMachines e725 this kernel do nothing =( Keys for control brightess is not working, brightness is turn off during start up.

Set up below kernel boot properties:
acpi_blacklight=vendor quiet splash

The old boot properties:
acpi_osi=Linux quiet splash

- With new boot properties nothig don't working (keys, blacklight is turn off during start up)
- With old keys is working but inverted

Any ideas?

-- Vladimir