Public bug reported:
The brightness control for the display is not working in this machine, neither
the backlight.
The gnome brigthness applet reports "Cannot get laptop panel brightness". Nor
the Fn keys work.
In the /proc structure appears:
/proc/acpi/video/GFX0/DD05/brightness
/proc/acpi/video/GFX0/DD04/brightness
/proc/acpi/video/GFX0/DD03/brightness
/proc/acpi/video/GFX0/DD02/brightness
/proc/acpi/video/GFX0/DD01/brightness
all of them report
<not supported>
ProblemType: Bug
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hernan 1422 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0340000 irq 22'
Mixer name : 'Realtek ALC272'
Components : 'HDA:10ec0272,144dca00,00100001'
Controls : 18
Simple ctrls : 11
Date: Sun Oct 25 16:29:07 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=fc42df01-d5d8-4040-b553-cfeab9a27355
MachineType: SAMSUNG ELECTRONICS CO., LTD. NC10/N110
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.31-14-generic
root=UUID=3d936f33-161d-42dd-8723-8c15489f6895 ro quiet splash
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
linux-backports-modules-2.6.31-14-generic N/A
linux-firmware 1.24
SourcePackage: linux
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 06/19/2009
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 05D0.M004.20090619.RHU
dmi.board.name: NC10/N110
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr05D0.M004.20090619.RHU:bd06/19/2009:svnSAMSUNGELECTRONICSCO.,LTD.:pnNC10/N110:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNC10/N110:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: NC10/N110
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
brightness and backlight control not working in Samsung N110
https://bugs.launchpad.net/bugs/460634
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