I have a Samsung series 3 (NP350U2B) which was working fine with Ubuntu 64 bit 12.10. That was until a software update a couple of days ago. Before the update the brightness could be set at a range of values, using both the builtin keyboard function keys, and the settings control. After the update the brightness can only be at minimum or maximum values (keyboard function keys and settings control) and the brightness control display stutters when trying to select anything inbetween.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
I have a Samsung series 3 (NP350U2B) which was working fine with Ubuntu 64 bit 12.10. That was until a software update a couple of days ago. Before the update the brightness could be set at a range of values, using both the builtin keyboard function keys, and the settings control. After the update the brightness can only be at minimum or maximum values (keyboard function keys and settings control) and the brightness control display stutters when trying to select anything inbetween.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-27-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7c00000 irq 45'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0269,
Controls : 25
Simple ctrls : 12
Date: Sun Jul 29 21:19:31 2012
HibernationDevice: RESUME=
InstallationMedia:
MachineType: SAMSUNG ELECTRONICS CO., LTD. 350U2A/
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2012-04-29 (91 days ago)
dmi.bios.date: 07/09/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 03PY.M019.
dmi.board.
dmi.board.name: 350U2A/
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: 03PY
dmi.chassis.
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: 350U2A/
dmi.product.
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
Notebook NP530U3B.
I solved this:
cat /etc/madprobe. d/blacklist- samsung. conf
blacklist samsung_laptop
blacklist samsung_backlight #if you have