I have the same problem. After upgrading to Gutsy, speedstep doesn't work. Pentium M 725 is stuck at 1600MHz.
I tried this:
# modprobe speedstep-centrino
FATAL: Error inserting speedstep_centrino (/lib/modules/2.6.22-14-generic/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko): No such device
# modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.22-14-generic/kernel/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device
This is with the standard Gutsy kernel, 2.6.22-14. The upgrade program left the old feisty kernel (2.6.20-16), that works OK.
On WinXP or Vista it is also stuck at 1600 at a default install. I must use other programs like NHC or RMclock to change speed. So maybe ACPI is broken on this laptop (AHTEC Signal X-9600M, wich is a Quanta Z500N).
Attached dmesg. note the lines:
ACPI: Invalid _PSS data: freq is zero
I understand that it worked before because of hardcoded speed and voltage tables in speedstep-centrino, that are deprecated in the new kernel. Is there a chance to get it fixed/patched on the next kernel revision? If not I will be hearing this annoying fan forever... :)
I have the same problem. After upgrading to Gutsy, speedstep doesn't work. Pentium M 725 is stuck at 1600MHz.
I tried this:
# modprobe speedstep-centrino 2.6.22- 14-generic/ kernel/ arch/i386/ kernel/ cpu/cpufreq/ speedstep- centrino. ko): No such device 2.6.22- 14-generic/ kernel/ arch/i386/ kernel/ cpu/cpufreq/ acpi-cpufreq. ko): No such device
FATAL: Error inserting speedstep_centrino (/lib/modules/
# modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/
This is with the standard Gutsy kernel, 2.6.22-14. The upgrade program left the old feisty kernel (2.6.20-16), that works OK.
On WinXP or Vista it is also stuck at 1600 at a default install. I must use other programs like NHC or RMclock to change speed. So maybe ACPI is broken on this laptop (AHTEC Signal X-9600M, wich is a Quanta Z500N).
Attached dmesg. note the lines:
ACPI: Invalid _PSS data: freq is zero
I understand that it worked before because of hardcoded speed and voltage tables in speedstep-centrino, that are deprecated in the new kernel. Is there a chance to get it fixed/patched on the next kernel revision? If not I will be hearing this annoying fan forever... :)