[Bug 512545] [NEW] Samsung N130 laptop does not react on backlight change key presses

[Grigory Rechistov]

Public bug reported:

At Samsung N130 Fn+Up/Down keyboard combinations that are marked as
"change screen brightness up/down" does not trigger effect at all. I
have BIOS version 05CM, use Ubuntu 9.10 x86 with KDE 4.3

Also I can say that this is different from bug #295251 that is about
Samsung NC10 which does not generate "key released" events. I tried
using xev and see that pressing Fn+Up/Down does not generate events at
all.

There is a howto in Arch setup instructions for Samsung N140
(http://wiki.archlinux.org/index.php/Samsung_N140#No_backlight_setting_via_ACPI)
which is very close to N130 and they provide several solutions depending
on which kernel version one uses. It'd be nice if similar fixes were
incorporated into Ubuntu.

ProblemType: Bug
Architecture: i386
Date: Tue Jan 26 01:20:58 2010
DistroRelease: Ubuntu 9.10
Package: linux-generic 2.6.31.18.31
ProcEnviron:
 LANGUAGE=ru_RU:ru:en_GB:en
 PATH=(custom, user)
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-18.55-generic
SourcePackage: linux-meta
Uname: Linux 2.6.31.9-piix-fix-spurious-irq i686
XsessionErrors: (polkit-gnome-authentication-agent-1:1966): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

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Samsung N130 laptop does not react on backlight change key presses
https://bugs.launchpad.net/bugs/512545
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