Public bug reported:
I am having this particular problem on my Samsung N130 netbook.
When I login to my XFCE desktop, screen starts to flicker heavily and
the entire X11 interface becomes frozen. The Fn keys for tuning the
display brightness have no effect whatsoever.
The only way to get over this is to switch to console window with
Alt+Ctrl+F2, and back to X11 with Alt+F7. However, this trick does not
always help.
The same thing happens when I try to adjust the brightness of my screen
with Fn keys, or when the XFCE changes the display brightness for power
saving purposes.
When checking the system logs (or running dmesg), there are large number
of messages, pointing to samsung_laptop kernel module:
samsung_laptop: SABI set command 0x01 failed with completion flag 0xaa
and data 0xff
It's a critical bug, since it essentially renders N130 netbooks useless.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-13-generic 3.0.0-13.22
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: risto 1412 F.... xfce4-volumed
risto 1450 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0440000 irq 43'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,144dc05d,00100004'
Controls : 14
Simple ctrls : 9
Date: Sat Nov 26 18:11:49 2011
HibernationDevice: RESUME=UUID=9341c3b7-c78a-4fa0-97b4-16217181782c
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MachineType: SAMSUNG ELECTRONICS CO., LTD. N130
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic
root=UUID=4efae644-339f-4512-91e7-2db6117c752f ro quiet splash vt.handoff=7
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
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/13/2009
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 05CM.M011.20091013.JIP
dmi.board.name: N130
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.:bvr05CM.M011.20091013.JIP:bd10/13/2009:svnSAMSUNGELECTRONICSCO.,LTD.:pnN130:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN130:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: N130
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: apport-bug i386 oneiric
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https://bugs.launchpad.net/bugs/896606
Title:
samsung_laptop kernel module does not handle the display properly
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