acpi_osi=Linux fixed the problem for me too
Asus Eee PC 1201N with Lucid 32bit
however before I added "acpi_osi=Linux" the fn5&fn6 brightness keys worked and the notification worked as well
But after adding "acpi_osi=Linux" the brightness keys still functionally work however the notification does not show up
not a big deal I guess
acpi_osi=Linux fixed the problem for me too
Asus Eee PC 1201N with Lucid 32bit
however before I added "acpi_osi=Linux" the fn5&fn6 brightness keys worked and the notification worked as well
But after adding "acpi_osi=Linux" the brightness keys still functionally work however the notification does not show up
not a big deal I guess