Public bug reported:
According to Dell Latitude D830 manual, <Fn> and left-arrow key should
activate the ambient light sensor, which controls brightness of the
display based on light level in the current environment. I've checked it
in WinPE and in GRUB - it works well. But in user account in my Kubuntu
13.04 <Fn> and left-arrow key returns:
(XEV output)
KeyPress event, serial 40, synthetic NO, window 0x4000001,
root 0x103, subw 0x0, time 4948865, (162,-13), root:(164,45),
state 0x0, keycode 201 (keysym 0x1008ffb1, XF86TouchpadOff), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
So, as we see, this is mistake and it should not return any code because
it processes through BIOS and must switch on/of ambient light sensor to
operate correctly according to laptop manual.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Tue Apr 23 15:19:14 2013
InstallationDate: Installed on 2013-02-28 (53 days ago)
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
ProcEnviron:
LANGUAGE=
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=uk_UA.UTF-8
SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to raring on 2013-03-16 (38 days ago)
** Affects: udev (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug kubuntu raring
** Package changed: xorg (Ubuntu) => udev (Ubuntu)
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https://bugs.launchpad.net/bugs/1171848
Title:
No possibility to operate Ambient Light Sensor on Latitude D830
because of kernel handles Fn-combination instead of BIOS
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