kernel-packages team mailing list archive

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

Jeremie Tamburini, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Summary changed:

- backlight control acpi_video0 instead intel_backlight
+ [Lenovo B570] backlight control acpi_video0 instead intel_backlight

** Summary changed:

- [Lenovo B570] backlight control acpi_video0 instead intel_backlight
+ 8086:0116 [Lenovo B570] backlight control acpi_video0 instead intel_backlight

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1249219

Title:
  8086:0116 [Lenovo B570] backlight control acpi_video0 instead
  intel_backlight

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  After upgrading to new release (13.10), when i control brightness,
  system change value in file
  /sys/class/backlight/acpi_video0/brightness instead of
  /sys/class/backlight/intel_backlight/brightness by default. On 13.04
  or older brightness works good.

  ---
  ApportVersion: 2.12.6-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  timofey    2907 F.... pulseaudio
  CurrentDmesg:
   Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
   dmesg: write failed: Broken pipe
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2013-05-28 (169 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: LENOVO HuronRiver Platform
  MarkForUpload: True
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.12.0-2-generic root=UUID=5f54dc08-5f0f-4ab1-bdf2-844517b2419b ro rootflags=subvol=@ acpi_backlight=vendor
  ProcVersionSignature: Ubuntu 3.12.0-2.7-generic 3.12.0
  Tags:  trusty
  Uname: Linux 3.12.0-2-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2013-07-08 (127 days ago)
  UserGroups: audio autopilot libvirtd sudo video
  WifiSyslog:

  dmi.bios.date: 10/27/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 44CN43WW
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Emerald Lake
  dmi.board.vendor: LENOVO
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnLENOVO:bvr44CN43WW:bd10/27/2011:svnLENOVO:pnHuronRiverPlatform:pvrLenovoB570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
  dmi.product.name: HuronRiver Platform
  dmi.product.version: Lenovo B570
  dmi.sys.vendor: LENOVO

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