[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/887776
Title:
[Dell Latitude E4200] Ambient Light sensor doesn't work
Status in “linux” package in Ubuntu:
Expired
Bug description:
I have a problem with my system, i think it's a kernel issue because
light sensor stop to respond after kernel load.
For example, when i am in the GRUB menu, light sensor work correctly
and i can enable and disable sensor with FN+left arrow, but when
kernel starts to load, without any module loaded (i stop loading to an
emergency shell, so i eliminate issues concerning modules or any other
software, i.e. gnome-power-manager), light sensor stops to work.
I test my pc with a CentOS 5.5 live (kernel 2.6.18) and it's OK, also
in emergency shell, if i try with CentOS 6 (kernel version over
2.6.30) the issue is present, so i think it's a kernel regression, but
i'm not sure.
My collegue with a Dell Latitude XT (it's an older series) has not the
issue, its ambient light sensor works fine.
with lsinput i identify the Dell Wky Hotkeys and if i check with
/lib/udev/keymap -i input/event6 i read:
scan code: 0x4B key code: unknown
So is this a problem related to dell_wmi?
What can i do to identify the issue more precisely?
Ubuntu version: 11.10
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AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alby 2047 F.... pulseaudio
CRDA: Error: [Errno 2] File o directory non esistente
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf6adc000 irq 47'
Mixer name : 'Intel Cantiga HDMI'
Components : 'HDA:111d76b2,10280277,00100302
HDA:80862802,80860101,00100000'
Controls : 19
Simple ctrls : 11
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=cb0b4561-895d-4949-8ea3-d84800d86cb7
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
MachineType: Dell Inc. Latitude E4200
Package: linux (not installed)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic
root=/dev/mapper/Debian-root ro quiet splash quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
RelatedPackageVersions:
linux-restricted-modules-3.0.0-13-generic N/A
linux-backports-modules-3.0.0-13-generic N/A
linux-firmware 1.60
StagingDrivers: mei
Tags: oneiric staging
Uname: Linux 3.0.0-13-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout disk libvirtd lpadmin plugdev sambashare
dmi.bios.date: 08/17/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A18
dmi.board.name: 0D516F
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA18:bd08/17/2010:svnDellInc.:pnLatitudeE4200:pvr:rvnDellInc.:rn0D516F:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E4200
dmi.sys.vendor: Dell Inc.
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