coretemp: undocumented features for w83627dhg (winbond sensor)

Bug #218079 reported by dino99 on 2008-04-16
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

config: mobo asus p5wdh video asus en8500gt hardy 2.6.24-16

in kernel.log message i've found: w83627ehf : found w83627dhg chip at 0x290
                                           coretemp: undocumented features, absolute temperature might be wrong !!!

i've found documentation about this chip at: to work with.

lspci detect an other motherboard : mine is p5wdh
lots of unknown devices too

dino99 (9d9) wrote :
dino99 (9d9) wrote :
dino99 (9d9) wrote :
dino99 (9d9) wrote :
dino99 (9d9) wrote :
dino99 (9d9) wrote :
dino99 (9d9) wrote :
dino99 (9d9) on 2008-04-16
description: updated
description: updated
Changed in linux:
assignee: nobody → ubuntu-kernel-team
importance: Undecided → Medium
status: New → Triaged
dino99 (9d9) wrote :

false data returned by sensord

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.


2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to for more information. Thanks.

dino99 (9d9) wrote :

some errors logged in syslog on karmic a6:

 w83627ehf: Found W83627DHG chip at 0x290
Sep 17 07:27:20 oem-desktop kernel: [ 10.190486] ACPI: I/O resource w83627ehf [0x295-0x296] conflicts with ACPI region HWRE [0x290-0x299]

Sep 17 07:27:20 oem-desktop kernel: [ 10.190549] ACPI: Device needs an ACPI driver

Sep 17 07:27:20 oem-desktop kernel: [ 10.203998] coretemp coretemp.0: Using relative temperature scale!

So, conflicts with acpi & driver missing

Jeremy Foshee (jeremyfoshee) wrote :

This bug report was marked as Triaged a while ago but has not had any updated comments for quite some time. Please let us know if this issue remains in the current Ubuntu release, . If the issue remains, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: kj-triage
Changed in linux (Ubuntu):
status: Triaged → Incomplete
dino99 (9d9) wrote :

this issue is gone since Karmic final release, so i change status to invalid

Changed in linux (Ubuntu):
status: Incomplete → Invalid
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