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[Launchpad Bug Tracker <883305@xxxxxxxxxxxxxxxxxx>]

[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/883305

Title:
  Brightness key combinations for adjustment don't work on netbook
  Samsung N210/N230

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  In 11.10 the keys used to adjust the screen birghtness don't work:
  Fn + arrow up = increase brightness
  Fn + arrow down = decrease brightness
  Fn + F5 = toggle backlight

  I also noted that Fn + F9, wich should toggle the wifi network
  adapter, does not work also.

  Proposed solution:
  The samsung-laptop module is not loaded automatically since the kernel fail to identify the platform it run on.
  I think this issue is the one described in bug #36082 on the kernel bugtracker (can't access it atm, I think the bugzilla has yet to be restored).
  The fact is that the N2320 netbook identify itself  as N150/N210/N220/N230 but the three other N150, N210 and N220 identify themselves as  N150/N210/N220 only.
  This is confirmed by running modprobe samsung-laptop, which result in :
  FATAL: Error inserting samsung_laptop (/lib/modules/3.0.0-12-generic/kernel/drivers/platform/x86/samsung-laptop.ko): No such device

  Also the samsung-laptop module is not in the lsmod result. (cf. attachement).
  The patch I send, look at the previously mentioned kernel ticket, fixed this issue for me but I wasn't able to test the control back then.  This patch have been pushed to stable few days ago.

  ---
  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:  thomas     1438 F.... pulseaudio
  CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf0400000 irq 47'
     Mixer name	: 'Realtek ALC269'
     Components	: 'HDA:10ec0269,144dc072,00100004'
     Controls      : 14
     Simple ctrls  : 9
  DistroRelease: Ubuntu 11.10
  HibernationDevice: RESUME=UUID=7575c539-0444-4ef0-9021-5c6bd28ce73d
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. N150/N210/N220
  Package: linux (not installed)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=daeb47e8-cc1a-4bab-8bd3-695c9386dfae ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-12-generic N/A
   linux-backports-modules-3.0.0-12-generic  N/A
   linux-firmware                            1.60
  Tags:  oneiric running-unity
  Uname: Linux 3.0.0-12-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 03/25/2010
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 08JI.M073.20100325.JIP
  dmi.board.asset.tag: SAMSUNG
  dmi.board.name: N150/N210/N220
  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.:bvr08JI.M073.20100325.JIP:bd03/25/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnN150/N210/N220:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN150/N210/N220:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
  dmi.product.name: N150/N210/N220
  dmi.product.version: Not Applicable
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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