I know this has been beat to death in other forums, at least when I do some Google queries, it is apparent, but nobody answered the question in the context I was looking for, so here goes. I want to understand how to correct this or properly diagnose it, not copy and paste a few commands and pray.
badass:/home/user# modprobe acpi_cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.21-2-amd64/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko): No such device
This is what I type to try and load the module so that I can have CPU frequency scaling on my desktop. The desktop has a Supermicro motherboard. It's a PDSGE, here is a link for the specs:
The CPU is a Pentium D 3.0 ghz dual core.
I am thinking the motherboard doesn't support ACPI, because of this:
badass:/home/user# ls -l /lib/modules/2.6.21-2-amd64/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko
-rw-r--r-- 1 root root 18540 2007-07-10 18:18 /lib/modules/2.6.21-2-amd64/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko
The module is there. This is a freshly installed Debian system. I just tried Ubuntu Fiesty 7.04 as well. I have tried Debian 4.0, but it currently has been installed from the latest testing netinst.iso.
badass:/home/user# ls /sys/devices/system/cpu/cpu0/
cache crash_notes thermal_throttle topology
I don't know what else to put on here. I am not a true Newbie, just not very in depth. I don't know how to troubleshoot these issues.
If you know of anything, even a clue, please share it. If you think it's a bug or just lack of support for the 955 chipset, then please share that with me as well.
If there are alternatives available to reduce power and idle speed, please share. I had another motherboard install in this PC and considered the SuperMicro an upgrade, esp for Linux support, and it's been what I wanted, until acpi_cpufreq failed to load. I hope it's a software problem or bug that I can fix, or operator problem