fan does'nt work on HP Elitebook Laptop

[Vincent Louviaux]

I have installed Ubuntu 16.04.2on a laptop HP EliteBook 2540p and the fan doesn't work.
It begins to be very hot !
I have installed successfully sensors.
I have try to configure the fan with pwmconfig and I have got the foolowing message :

pwmconfig: There are no pwm-capable sensor modules installed.

I have add the following in the grub config : acpi_enforce_resources=lax.

But did'nt success

Description: Ubuntu 16.04.2 LTS
Release: 16.04

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10.1

[Vincent Louviaux (vincent-louviaux)]

this is a new install , and I have the issue since the beginning.
I have found a discussion about this trouble here :
https://ubuntuforums.org/showthread.php?t=2121339

Seems not really new.

I will test with the latest upstream kernel

[Vincent Louviaux (vincent-louviaux)]

Same problem with

Linux vincent-HP-EliteBook-2540p 4.10.1-041001-generic #201702260735 SMP Sun Feb 26 12:36:48 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

[Joseph Salisbury (jsalisbury)]

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

[Vincent Louviaux (vincent-louviaux)]

https://bugzilla.kernel.org/show_bug.cgi?id=194787