Athlon 64 UP CPU -- no frequency scaling support?
Adam Williamson
awilliam at redhat.com
Thu Oct 29 17:38:26 UTC 2009
On Thu, 2009-10-29 at 17:38 +0200, Aioanei Rares wrote:
> The cpufreq-* modules are loaded, I tried both available Fedora kernels
> (2.6.31.5-96.fc12.x86_64 and
> 2.6.31.1-56.fc12.x86_64, acpitool --cpu says :
>
> CPU type : AMD Athlon(tm) 64 Processor 3800+
> CPU speed : 2400.392 MHz
> Cache size : 512 KB
> Bogomips : 4800.78
> Processor ID : 0
> Bus mastering control : yes
> Power management : no
> Throttling control : no
> Limit interface : no
> Active C-state : C0
> C-states (incl. C0) : 0
>
> But...in works in $OTHER_DISTRO and /proc/cpuinfo says
>
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 95
> model name : AMD Athlon(tm) 64 Processor 3800+
> stepping : 2
> cpu MHz : 2400.392
> cache size : 512 KB
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov
> pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm
> 3dnowext 3dnow up rep_good extd_apicid pni cx16 lahf_lm svm extapic
> cr8_legacy
> bogomips : 4800.78
> TLB size : 1024 4K pages
> clflush size : 64
> cache_alignment : 64
> address sizes : 40 bits physical, 48 bits virtual
> power management: ts fid vid ttp tm stc
>
>
> ...so it obviously should support cpu frequency scaling. Any ideas?
Have you checked for any relevant messages in /var/log/messages ?
--
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Fedora Talk: adamwill AT fedoraproject DOT org
http://www.happyassassin.net
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