[Bugme-new] [Bug 35072] New: Backlight isn't working with Intel GMA 4500M

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sat May 14 07:04:46 PDT 2011


https://bugzilla.kernel.org/show_bug.cgi?id=35072

           Summary: Backlight isn't working with Intel GMA 4500M
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.38.6
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: low
          Priority: P1
         Component: Video(DRI - Intel)
        AssignedTo: drivers_video-dri-intel at kernel-bugs.osdl.org
        ReportedBy: andrea at archlinux.org
        Regression: No


Hi,
I own a Toshiba Satellite T130 and backlight using FN keys isn't working.

I can edit the backlight value using setpci, for example I do "setpci -s
00:02.0 F4.B=40" to decrease that value, and "setpci -s 00:02.0 F4.B=FF" to set
backlight to the maximum value.

I don't know what kind of information you need to fix this, then ask me
everything you need.

lspci says:
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)

Thanks!

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