[Bug 72321] 8086:0412 [HP ENVY TouchSmart 23se-d494 All-in-One Desktop PC] No backlight interface

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Thu Mar 20 19:03:24 PDT 2014


https://bugzilla.kernel.org/show_bug.cgi?id=72321

Aaron Lu <aaron.lu at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED
                 CC|                            |intel-gfx-bugs at lists.freede
                   |                            |sktop.org
          Component|Power-Video                 |Video(DRI - Intel)
           Assignee|acpi_power-video at kernel-bug |intel-gfx-bugs at lists.freede
                   |s.osdl.org                  |sktop.org
            Product|ACPI                        |Drivers

--- Comment #8 from Aaron Lu <aaron.lu at intel.com> ---
The ACPI dump shows that firmware doesn't provide a video output device that is
capable of backlight control, so no chance for ACPI to create a backlight
interface. The best bet would be the GPU driver to create a native interface,
especially the firmware claims support of windows 8/8.1. Re-assign to GPU/i915.

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