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Bug#286084: kernel-source-2.6.8: cpufreq with speedstep-centrino stopped working after once on battery power (Dell Latitide D600)



On Fri, 17 Dec 2004, Achim Bohnet wrote:

> Hi, on a Dell Latitude D600 Pentium-M, cpufreq was
> working a very long timewith with the 2.6.8 debian kernels
> and cpudynd.  Now (since ~ some weeks)
> it stopped working after power is unpluged and reconnect while cpu
> uses min. freq. Same in lastest 2.6.{8,9}-1-686.
> 
> 
>         Warning: CPU frequency is 1400000, cpufreq assumed 600000
> 
> 
> and cpufreq is stick until next reboot at 600 MHz.
> 
> correct:
>  o with AC after boot --> 600 MHz -> ok
>  o start glxgears --> 1400 MHz -> ok
>  o unplug AC --> 1400 MHz -> ok
>  o plug AC  --> 1400 Mhz -> ok
>  o stop glxgears --> 600 Mhz -> ok
>  o start glxgears --> 1400 mhz -> ok
>  o stop glxgears --> 600 ok
> bug:
>  o unplug AC again -> 600 ok
>  o start glxgears ->  600 <- bug should be 1400.  Syslog:
>    Warning: CPU frequency is 1400000, cpufreq assumed 600000
>  o plug AC, glxgear still running <- should be 1400
> 
> 
> cpudynd (1.0-2) is running as:
> 
>  /usr/sbin/cpudynd -i 1 -p 0.5 0.9 -t 120 -h /dev/hda
> 
> kill -USR1 or HUP to force cpudyn to use max or dyn. freq. does
> not help.  Restarting cpudyn and still min freq. is used when
> glxgears is running.
> 
> Achim

can you still reproduce aboves problems with newer linux image 2.6.12?

--
maks




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