[Bug 573120] [NEW] acpi_backlight=video does not work

[Kamal Mostafa]

Public bug reported:

[Ubuntu 10.04 LTS kernel through upstream kernel version 2.6.34-rc6]

Kernel boot param "acpi_backlight=video" does not enable backlight
support as intended.  Setting it actually ends up enabling the video
output switching feature (the same as "acpi_display_output=video" does).

It is not possible to force backlight support, since no code ever
enables ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO.

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Kamal Mostafa (kamalmostafa)
         Status: In Progress

** Changed in: linux (Ubuntu)
       Status: New => In Progress

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Kamal Mostafa (kamalmostafa)

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acpi_backlight=video does not work
https://bugs.launchpad.net/bugs/573120
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