Red Hat Bugzilla – Bug 235754
CPU scaling not working on Asus Z62Fm
Last modified: 2013-11-12 21:31:21 EST
Description of problem: speedstep CPU scaling on Asus Z62Fm is not working.
speedstep-smi states "No supported Intel CPU detected." Although it works fine
with FC6 2.6.20 kernel. Similar to FC6 bug
Version-Release number of selected component (if applicable): RHEL Client 5 x86
kernel 2.6.18-8.el5 and 2.6.18-8.1.1.el5
How reproducible: Fresh install.
Created attachment 152072 [details]
dmesg output w/ cpufreq.debug=7 added kernel parameters
Created attachment 152175 [details]
RHEL using FC6 kernel -- cpu scaling working
It's the same on my HP nc8430 laptop. The CPU is an Intel Core 2 Duo T7200.
The CPU detection appears to be misdetecting the exact processor type/model.
This is with the i386 (32bit) or the x86_64 (64bit) kernel?
This Bugzilla has been reviewed by Red Hat and is not planned on being
addressed in Red Hat Enterprise Linux 5, and therefore is being closed.
If this bug is critical to production systems, please contact your Red
Hat support representative and provide a sufficient business justification
in order to re-open it.