[Bug 61979] New: backlight adjustment doesn't work on HP Pavilion m6-1035dx

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61979

          Priority: medium
            Bug ID: 61979
          Assignee: xorg-driver-ati at lists.x.org
           Summary: backlight adjustment doesn't work on HP Pavilion
                    m6-1035dx
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: s_chriscollins at hotmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

I am unable to adjust the backlight on my laptop when using the open-source
radeon driver, but backlight adjustments to work correctly when using fglrx.
xbacklight reports that "No outputs have backlight property".

Now, if I recall correctly, the backlight used to work before I updated the
BIOS on this laptop. Prior to the BIOS update, the backlight setting worked in
the radeon driver, but was flaky in fglrx. After the update, the backlight
setting works correctly in fglrx but not radeon.

Please let me know what information I can provide to help resolve this issue.

Here is my system info:

OS: Kubuntu 12.04 amd64 w/ KDE SC 4.10.1
PC: HP Pavilion m6-1035dx
CPU/GPU: AMD A10-4600M APU with Radeon(tm) HD Graphics
RAM: 6GB DDR3 800 MHz
Linux Kernel: 3.5.0-25-generic
Screen Resolution: 1366 x 768
Xserver: 1.12.3+git20120709+server-1.12-branch.60e0d205

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