Bug 18772

Summary:	Fans continously spinning at maximum speed under Skylake 6700HQ
Product:	Mageia	Reporter:	Giuseppe Ghibò <ghibomgx>
Component:	RPM Packages	Assignee:	Kernel and Drivers maintainers <kernel>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	Normal	CC:	marja11
Version:	Cauldron	Keywords:	NEEDINFO
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:
Source RPM:	kernel-4.6.2-2.mga6.src.rpm	CVE:
Status comment:

Description Giuseppe Ghibò 2016-06-23 12:57:36 CEST

Description of problem:

After the kernel is started under a laptop with Skylake 6700HQ processor and HM 170 Express Chipset, the fans start spinning and continuosly spins at maximum speed, never stopping until a power off. Temperatures are not high (below 40Â°C).

Under MGA5 with kernel 4.1.15-desktop the same problem doesn't occurs in the same hardware.

Comment 1 Marja Van Waes 2016-06-23 16:59:41 CEST

Thanks for the report.

Do you mind _attaching_ the output of (as root) "journalctl -ab" in case there's something in it that helps understand why this happens?

Keywords: (none) => NEEDINFO
CC: (none) => marja11
Assignee: bugsquad => tmb

Comment 2 Giuseppe Ghibò 2016-06-28 01:28:22 CEST

This seems quite a widespread problem for skylake. I found that providing intel_idle.max_cstate=1 in the booting cmdline would cause fan to to spin at maximum level (also for that flag there were discussion here https://bugzilla.kernel.org/show_bug.cgi?id=109051 and here
http://ubuntuforums.org/showthread.php?t=2319205).

Also in this configuration I'm not using proprietary nvidia drivers yet.

Comment 3 Giuseppe Ghibò 2016-08-09 18:45:28 CEST

This is confirmed to be still there on kernel 4.7.0-desktop-2.mga6. Providing intel_idle.max_cstate=1 will let fans not continuosly spinning at maximum level since boot.

Comment 4 Marja Van Waes 2016-08-26 11:42:58 CEST

Mass-reassigning all bugs with "kernel" in the Source RPM field that are assigned to tmb, to the kernel packagers group, because tmb is currently MIA.

Assignee: tmb => kernel

Comment 5 Giuseppe Ghibò 2016-11-11 15:50:43 CET

This no longer happens in kernel 4.8.7 (as well as previous 4.8.x). I close.

Status: NEW => RESOLVED
Resolution: (none) => FIXED