@Paul Dufresne: acpi_backlight=vendor | acpi_backlight=video don't bring any difference.
@raido357: acpi=off works on Lucid beta 1! Thanks. If I remember correct, it didn't on Karmic!
My FN brightness keys works now under Lenovo N200 after adding "acpi=off" to "GRUB_CMDLINE_LINUX_DEFAULT=" line in "/etc/default/grub". Please try it on your laptops under Lucid Beta.
@Paul Dufresne: acpi_backlight= vendor | acpi_backlight= video don't bring any difference.
@raido357: acpi=off works on Lucid beta 1! Thanks. If I remember correct, it didn't on Karmic!
My FN brightness keys works now under Lenovo N200 after adding "acpi=off" to "GRUB_CMDLINE_ LINUX_DEFAULT= " line in "/etc/default/ grub". Please try it on your laptops under Lucid Beta.