https://bugzilla.kernel.org/show_bug.cgi?id=60657

            Bug ID: 60657
           Summary: Regression: backlight brightness not changeable with
                    fn keys
           Product: ACPI
           Version: 2.5
    Kernel Version: 3.11-rc3
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Power-Video
          Assignee: [email protected]
          Reporter: [email protected]
        Regression: No

The fn brightness keys of my Laptop (HP 625) are not working anymore
since kernel version 3.11-rc1.

With older kernels of the 3.10 branch they are working fine.

Setting the brightness manually with
"echo number > /sys/class/backlight/acpi_video0/brightness"
works though.

I have tried adding "acpi_backlight=vendor" as a kernel parameter
but this did not fix it.

Do you need any more information?
Please let me know if this is the case.

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