Brightness bug

[Alexandre Carvalho]

I can't down the bightness, there's just 1 level for it now...

and when it goes down, because I stay like, 30 seconds without using the notebook, it doesn't come back to the normal when I start using it again, to make it comeback, I need to try set the brightness down and it comes back to the normal

I'm using a Samsung RV411 notebook

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-27-generic-pae 3.2.0-27.43
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic-pae 3.2.21
Uname: Linux 3.2.0-27-generic-pae i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alexandre2 1906 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc800000 irq 43'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:10ec0269,144dc581,00100100 HDA:80862804,80860101,00100000'
   Controls : 25
   Simple ctrls : 12
CurrentDmesg: [ 21.269633] init: anacron main process (1079) killed by TERM signal
Date: Fri Jul 27 14:49:54 2012
HibernationDevice: RESUME=UUID=1cc303b5-4eb3-494a-8ea8-c3de0e6a505b
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: SAMSUNG ELECTRONICS CO., LTD. RV411/RV511/E3511/S3511/RV711
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 TERM=xterm
 PATH=(custom, user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-27-generic-pae root=UUID=3d6251a2-5051-4c56-98dd-c5476a777221 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-27-generic-pae N/A
 linux-backports-modules-3.2.0-27-generic-pae N/A
 linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/12/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 03PA.M001.20110312.XW
dmi.board.asset.tag: Tag 12345
dmi.board.name: RV411/RV511/E3511/S3511/RV711
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr03PA.M001.20110312.XW:bd03/12/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pnRV411/RV511/E3511/S3511/RV711:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnRV411/RV511/E3511/S3511/RV711:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
dmi.product.name: RV411/RV511/E3511/S3511/RV711
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[starfear (utdilya)]

Notebook NP530U3B.
I solved this:

cat /etc/madprobe.d/blacklist-samsung.conf

blacklist samsung_laptop
blacklist samsung_backlight #if you have

[Alexandre Carvalho (alexandre596)]

cannot find the directory /etc/madprobe.d/blacklist-samsung.conf

[Alexandre Carvalho (alexandre596)]

sorry for the DP, I can't edit the previous

the "blacklist" I got:

blacklist-ath_pci.conf
blacklist-bcm43.conf
blacklist.conf
blacklist-cups-usblp.conf
blacklist-firewire.conf
blacklist-framebuffer.conf
blacklist-modem.conf
blacklist-oss.conf
blacklist-rare-network.conf
blacklist-watchdog.conf

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.5kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5-rc7-quantal/

[Alexandre Carvalho (alexandre596)]

I'm stuck in the login screen, it doesn't show me where to type my password, and the power symbol, and the top right, is not working either