Mailinglist Archive: opensuse-bugs (8956 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=216205


trenn@xxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |venkatesh.pallipadi@xxxxxxxxx
            Summary|GNOME: The CPU frequency    |CPU frequency kernel bug - not switched up even
                   |scaler seems to work in an  |with performance governor
                   |opposite way                |




------- Comment #10 from trenn@xxxxxxxxxx  2006-10-31 05:26 MST -------
The first output of comment #8 shows that something is broken in kernel cpufreq
code.
When running with performance governor, freq must be highest.

Can you add CPUFREQ_ENABLED="no" in /etc/sysconfig/powersave/cpufreq and try
some things manually, pls.

First, is this phenomenon always happening or does it only happen after some
time?

Try to load the cpufreq driver by hand (modprobe speedstep-centrino, if this
does not work it should be modprobe acpi).

Venkatesh, do you know about this one?
Load governors by hand: modprobe userspace;modprobe ondemand;modprobe
performance

cd /sys/devices/system/cpu/cpu0/cpufreq
echo ondemand >scaling_governor (does cpu get switched up and down on CPU
load?)
Let it stay down and try:
echo performance >scaling_governor

Is the machine on lowest freq now?
If yes, we hit the bug.
Does echo userspace >scaling_govornor;echo 2266000 >scaling_setspeed switch up
to highest freq now?
If yes, do echo ondemand >scaling_governor  (does cpu get switched up and
down?)


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