[Bug 580189] [NEW] No speedstep on IBM Thinkpad A21m (P3 Coppermine) with lucid and 2.6.32
hede
michael.heide at student.uni-siegen.de
Thu May 13 20:25:55 UTC 2010
Public bug reported:
I'm using Ubuntu 9.04 (jaunty) on my IBM Thinkpad A21m now (700MHz
Pentium III Coppermine, 440BX Chipset, piix4) Everything works fine.
Speedstep ondemand is not working but I can switch between powersave
(550MHz) and performance (700MHz) governor. I didn't do anything to be
able to use it. I do not need any module parameters. It works out of the
box. The speedstep modules are compiled into the kernel anyways. The
cpufreq driver is speedstep-smi.
I tried Ubuntu 10.04 (lucid) these days. Speedstep doesn't work. The CPU is clocked to 550MHz. No way to use 700MHz. I tried to use different advices from thinkwiki:
http://www.thinkwiki.org/wiki/How_to_get_SpeedStep_working_on_Coppermine-piix4-smi_based_ThinkPads#Ubuntu_.28Edgy.29
But because the modules are compiled into the kernel, I do not know how to give it the parameter "relaxed_check=1". I tried to add "speedstep-lib.relaxed_check=1" and "cpufreq.debug=7" to the kernel cmdline. In jaunty this gives me an error, lucid simply ignores this.
(sorry for not using "ubuntu-bug -p linux", but this would be pointless
because I'm in jaunty now where everything is working fine.)
I will add dmesg, /proc/version and /proc/cpuinfo from jaunty and lucid
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
No speedstep on IBM Thinkpad A21m (P3 Coppermine) with lucid and 2.6.32
https://bugs.launchpad.net/bugs/580189
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