http://bugzilla.kernel.org/show_bug.cgi?id=11939
Summary: MSI WIND and brightness change works crappy
Product: ACPI
Version: 2.5
KernelVersion: 2.6.27
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
Latest working kernel version:
none known
Earliest failing kernel version:
Distribution:
Arch Linux
Hardware Environment:
MSI WIND U100
Software Environment:
Problem Description:
When I want change brightness using Fn+F4 (down) or Fn+F5 (up) it works crappy.
It means that, I must hold this key combination 3-5 seconds to work, or hit it
several times. This bug exist in vanilla 2.6.27 and Arch Linux 2.6.27, but in
Ubuntu 8.10 kernel it works correctly, as expected.
When I use kernel from Ubuntu on Arch Linux it works.
I recompiled vanilla kernel with ubuntu config, but it doesn't work.
Changing brigtness using "echo xx > /proc/acpi/video/IGD/LCD/brightness" works
correctly on all kernels (Vanilla, Arch, Ubuntu, Fedora)
Steps to reproduce:
- install/run distro: Arch Linux / Fedora 9
- try change brightness using Fn+F4/F5
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