[Bug 97368] New: ASUS X450LCP brighness hot keys aren't working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97368

            Bug ID: 97368
           Summary: ASUS X450LCP brighness hot keys aren't working
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marcos.souza.org at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 228451 [details]
DMI info

After trying to follow instructions from
http://hansdegoede.livejournal.com/13889.html, I could check it didn't worked.

The only kernel parameter that made it work was "acpi_osi=".

I tried to try different parameters, but none of them worked. When using
"acpi_osi=", /sys/class/backlight had two acpi_video0 entries:
[marcos at xfiles ~]$ ls /sys/class/backlight/
acpi_video0  acpi_video1  intel_backlight

There is something or someplace I should take a look in the source code?

Thanks!

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