kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Surak, thank you for performing the requested test. Given that Bugzilla
is legacy, it would be best to engage the upstream developers via the
appropriate mailing list. Could you please report this problem through
the appropriate channel by following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel (would send to linux-acpi)?

Please provide a direct URL to your e-mail to the mailing list once you
have made it so that it may be tracked.

Thank you for your understanding.

** Tags removed: kernel-bug-exists-upstream-v3.13-rc6-trusty
** Tags added: kernel-bug-exists-upstream-v3.13-rc6

** Changed in: linux (Ubuntu)
       Status: Confirmed => Triaged

** Changed in: linux (Ubuntu)
   Importance: Medium => Low

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https://bugs.launchpad.net/bugs/1218547

Title:
  8086:0416 [Clevo W350ST] brightness keys don't work on Kubuntu

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  The Fn+F8 and Fn+F9 keys are not working on my Clevo W350ST with
  Kubuntu Raring to change screen brightness of the internal laptop
  screen. I installed linux-headers-3.11.0-4, linux-
  headers-3.11.0-4-generic,  linux-image-3.11.0-4-generic and linux-
  image-extra-3.11.0-4-generic  from Saucy packages repository but the
  problem persists. Edit: Bug persists with v3.13-rc6-trusty.

  When trying the following event codes appear correctly:
  xev | sed -n 's/^.*state \([0-9].*\), keycode *\([0-9]\+\) *\(.*\), .*$/keycode \2 = \3, state = \1/p'
  keycode 36 = (keysym 0xff0d, Return), state = 0x10
  keycode 232 = (keysym 0x1008ff03, XF86MonBrightnessDown), state = 0x10
  keycode 233 = (keysym 0x1008ff02, XF86MonBrightnessUp), state = 0x10

  And changing:
  /sys/class/backlight/intel_backlight/brightness

  changes the brightness of the screen, but pressing the key combination does not. I believe this happens because the key combination is, in fact, changing the value of:
  /sys/class/backlight/acpi_video0/brightness

  I have in my package sources:
  http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu
  http://ppa.launchpad.net/bumblebee/stable/ubuntu

  WORKAROUND: acpi_backlight=vendor
  (but this brakes autoswitch to external monitor when connecting one to VGA port)

  ---
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  silvio     2689 F.... pulseaudio
   /dev/snd/pcmC1D0p:   silvio     2689 F...m pulseaudio
   /dev/snd/controlC0:  silvio     2689 F.... pulseaudio
  DistroRelease: Ubuntu 13.04
  HibernationDevice: RESUME=UUID=58f7acf2-4914-4b11-a2ac-e641cb4b39fd
  InstallationDate: Installed on 2013-08-18 (57 days ago)
  InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Notebook W350STQ/W370ST
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-9-generic root=UUID=f0bca002-701a-49bb-befc-7343bac2e245 ro locale=pt_BR quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-9.16-generic 3.11.2
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-9-generic N/A
   linux-backports-modules-3.11.0-9-generic  N/A
   linux-firmware                            1.106
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  Tags:  raring
  Uname: Linux 3.11.0-9-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo vboxusers
  dmi.bios.date: 04/11/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W350STQ/W370ST
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd04/11/2013:svnNotebook:pnW350STQ/W370ST:pvrNotApplicable:rvnNotebook:rnW350STQ/W370ST:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
  dmi.product.name: W350STQ/W370ST
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook

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