Bug 235813
Summary: | CPU Fan stops as kernel starts booting in FC6 | ||
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Product: | [Fedora] Fedora | Reporter: | Sudarshan Hegde <sl_hegde> |
Component: | cpuspeed | Assignee: | Jarod Wilson <jarod> |
Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | |
Severity: | urgent | Docs Contact: | |
Priority: | medium | ||
Version: | 6 | ||
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2008-02-12 23:19:32 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Sudarshan Hegde
2007-04-10 10:39:08 UTC
Does this lead to an actual problem? If the system is running cool enough and has fan throttling abilities enabled in the bios, this is intentional. If its leading to issues, please try to reproduce with the latest FC6 kernel. If its still causing problems with that kernel, we may need to do some additional debugging... I have experianced this with my Compaq nx6325 laptop. Even with the BIOS set to run the fan when on A/C, as soon as Linux begins to boot the fan will spin down to practically nothing. I think it's an issue with the ACPI mechanism. I'm running Ksensors and have alarms set on HD temp to alert me to when the temp rises. Ignoring the alarm will eventually trigger the BIOS to shut down the laptop. I'm guessing this is a safety mechanism to prevent a meltdown to the CPU. If you power the laptop back on immediatly after an overheat condition shut own the fan comes on at full speed until Linux begins to boot and then the fan RPM's drop back to hardly anything. The older FC6 kernels would shut the fan completely off. The newer versions seem to just throttle it down to a much slower RPM. I've read a few sites where the authors have accused HP of having a bug in their BIOS code etc however, I'm not familiar enough with the underlying ACPI structure to provide any input other than observations at this point. (2.6.20-1.2944.fc6 #1 SMP x86_64 x86_64 x86_64) Any better with the latest Fedora 7 kernel? And yeah, HP is somewhat notorious for having bios issues... No activity in 7 months, closing INSUFFICIENT_DATA. |