desktop-packages team mailing list archive

[Salvatore Martire <klarkent911@xxxxxxxxx>]

Public bug reported:

Prerequisite: installed nvidia proprietary drivers, bumblebee and
bbswitch-dkms packages.

When the system boots up the fan is running in normal mode. Log in to
system and the fan stops even if temps are > 60° (it should be turned on
at ~50° as of bios settings); it will go up and up until it reaches very
hot temperatures and starts throttling (>=85°). Just issue 'sudo tee
/proc/acpi/bbswitch<<<ON' and the fan starts magically. Reverting it to
OFF shuts down the fan. This is a dangerous bug. I'm not sure it's into
bbswitch but it's clearly related to it.

Release Elementary OS Freya 0.3
bbswitch-dkms version: 0.7-2ubuntu1

acerhdf modules is not loaded

Packages installed: thermald, intel_pstate, tlp (starting/stopping thermald does nothing about fan rotation)
Kernel load params: acpi_osi=Linux acpi_backlight=vendor intel_pstate=enable pcie_aspm=force

BIOS version 1.21

** Affects: bbswitch (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  Prerequisite: installed nvidia proprietary drivers, bumblebee and
  bbswitch-dkms packages.
  
  When the system boots up the fan is running in normal mode. Log in to
  system and the fan stops even if temps are > 60° (it should be turned on
  at ~50° as of bios settings); it will go up and up until it reaches very
  hot temperatures and starts throttling (>=85°). Just issue 'sudo tee
  /proc/acpi/bbswitch<<<ON' and the fan starts magically. Reverting it to
  OFF shuts down the fan. This is a dangerous bug. I'm not sure it's into
  bbswitch but it's clearly related to it.
  
  Release Elementary OS Freya 0.3
  bbswitch-dkms version: 0.7-2ubuntu1
  
  acerhdf modules is not loaded
  
  Packages installed: thermald, intel_pstate, tlp (starting/stopping thermald does nothing about fan rotation)
  Kernel load params: acpi_osi=Linux acpi_backlight=vendor intel_pstate=enable pcie_aspm=force
+ 
+ BIOS version 1.21

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to bbswitch in Ubuntu.
https://bugs.launchpad.net/bugs/1472965

Title:
  Setting bbswitch to OFF prevents fan to run on Acer 5755G

Status in bbswitch package in Ubuntu:
  New

Bug description:
  Prerequisite: installed nvidia proprietary drivers, bumblebee and
  bbswitch-dkms packages.

  When the system boots up the fan is running in normal mode. Log in to
  system and the fan stops even if temps are > 60° (it should be turned
  on at ~50° as of bios settings); it will go up and up until it reaches
  very hot temperatures and starts throttling (>=85°). Just issue 'sudo
  tee /proc/acpi/bbswitch<<<ON' and the fan starts magically. Reverting
  it to OFF shuts down the fan. This is a dangerous bug. I'm not sure
  it's into bbswitch but it's clearly related to it.

  Release Elementary OS Freya 0.3
  bbswitch-dkms version: 0.7-2ubuntu1

  acerhdf modules is not loaded

  Packages installed: thermald, intel_pstate, tlp (starting/stopping thermald does nothing about fan rotation)
  Kernel load params: acpi_osi=Linux acpi_backlight=vendor intel_pstate=enable pcie_aspm=force

  BIOS version 1.21

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/bbswitch/+bug/1472965/+subscriptions