Bug 9177 (speedstep)

Summary:	speedstep_centrino can't find device any more
Product:	Power Management	Reporter:	Alexander Heinlein (alexander.heinlein)
Component:	cpufreq	Assignee:	Thomas Renninger (trenn)
Status:	REJECTED INVALID
Severity:	normal	CC:	davej
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.23.12	Subsystem:
Regression:	Yes	Bisected commit-id:

Description Alexander Heinlein 2007-10-17 10:47:47 UTC

Most recent kernel where this bug did not occur: 2.6.22.6
Distribution: Debian GNU/Linux unstable
Hardware Environment: Thinkpad R52, Pentium M Dothan 750
Problem Description:
# modprobe speedstep_centrino
FATAL: Error inserting speedstep_centrino (/lib/modules/2.6.23.1/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko): No such device
speedstep_centrino can't find a device any more. Earlier kernel versions worked without problems.

CONFIG_ACPI=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_X86_SPEEDSTEP_CENTRINO=m
CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y

Comment 1 Alexander Heinlein 2007-10-18 01:37:02 UTC

I tried acpi_cpufreq and it works without problems. But I'm curious why speedstep_centrino doesn't work anymore.

Comment 2 Alexander Heinlein 2007-12-21 07:22:27 UTC

Hi.

What's up? Any plans to fix this problem? Or will this module become obsolete? Some responses would be really nice.

Regards,
Alex

Comment 3 Natalie Protasevich 2007-12-21 21:48:51 UTC

There is a plan to use acpi-cpufreq, so it's a good news. As for breakage of speedstep-centrino, maybe you can enable ACPI_DEBUG and provide dmesg and /var/log/messages while inserting the module. 
Have you tried latest kernel by chance?

Comment 4 Alexander Heinlein 2007-12-22 04:39:28 UTC

There are no messages while inserting speedstep-centrino. CONFIG_ACPI_DEBUG, CONFIG_CPU_FREQ_DEBUG, CONFIG_DEBUG_KERNEL and CONFIG_DEBUG_BUGVERBOSE enabled.

Same problem with kernel 2.6.23.12.

Comment 5 Thomas Renninger 2008-01-01 10:24:50 UTC

speedstep-centrino is deprecated, you have to use acpi-cpufreq.

According to comment #1:
> I tried acpi_cpufreq and it works without problems. But I'm curious why
> speedstep_centrino doesn't work anymore.
IMO this one can be closed -> doing so.