[Bugme-new] [Bug 9198] New: lower brightness (Fn + End) not logged

[bugme-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=9198

           Summary: lower brightness (Fn + End) not logged
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.23
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: low
          Priority: P1
         Component: Other
        AssignedTo: acpi_other at kernel-bugs.osdl.org
        ReportedBy: toralf.foerster at gmx.de


Most recent kernel where this bug did not occur:
Distribution: Gentoo (stable)
Hardware Environment: ThinkPad T41
Software Environment: sys-power/acpid-1.0.6-r1
Problem Description:

If I press <Fn>+<Pos1> the brightness of my ThinkPad is increased, pressing
<Fn>+<End> decreases the brigthness step wise.

In both cases under KDE a status window is displayed with the current
percentage of Brightness.

But I'm wondering why this acpi event is only logged for <Fn>+<Pos1> :

Oct 20 16:56:02 n22 acpid: received event "ibm/hotkey HKEY 00000080 00001010"
Oct 20 16:56:02 n22 acpid: notifying client 4785[0:0]
Oct 20 16:56:02 n22 acpid: executing action "/etc/acpi/default.sh ibm/hotkey
HKEY 00000080 00001010"
Oct 20 16:56:02 n22 acpid: action exited with status 0
Oct 20 16:56:02 n22 acpid: completed event "ibm/hotkey HKEY 00000080 00001010"

In addition the script /etc/acpi/events/default catches only this case,
decreasing the brightness works but the acpi event itself isn't logged, that's
why it cannot be further processed.

This happens with previous kernel versions too, I tested it under straight
vanilla kernel versions as well as under Gentoo kernel versions.

Steps to reproduce:


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