kernel-packages team mailing list archive

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

Andras Jakatics, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a terminal, as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux REPLACE-WITH-BUG-NUMBER

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-3.15-rc7

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Project changed: acpi => linux (Ubuntu)

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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

** Summary changed:

- ACPI fan control problem by ACER
+ [Acer Aspire 5720z] ACPI fan control problem

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/209837

Title:
  [Acer Aspire 5720z] ACPI fan control problem

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
   Hello! I bought an Acer Aspire 5720z laptop a half year ago. First I
  had 7.10, since february Hardy beta. Unfortunately I have the same
  ACPI problem with both versions: When I turn on the computer, the fan
  goes with full speed. After Ubuntu starts to boot, the fan stops
  suddenly. Usually the cpu overheats after about 30min and the bios
  turns the pc off. After turning it immediately on, and booting ubuntu,
  The fan speed goes up to max, but stays on the maximum forever.

   I changed my bios, but the it haven't solve this problem. Then I
  started to analyze acpi and found an interesting thing: Acpi gets only
  statically cpu-temp message by the booting.  When I start the pc it
  shows usually 40 C, but if I see the 'sensors' application, I can see
  that the real temperature goes upper and upper 50-60-70-80.... C and
  then the turning off by bios. ACPI shows always 40, so as it seems to
  be low, it won't ever start the fan. After the immediate restarting
  ACPI shows 70 C and it runs the cpufan on fullspeed. when I look at
  the sensors data, I can see, that the real cputemp comes down to
  25-35C. I can  also see cpu speed-step working well, only this fan is
  the problem for me. I would be very happy  if anyone knew the answer
  for this problem, and naturally I can help you with more infos, if you
  need. Thanx!!

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