Public bug reported:
I have a AMD 64 X2 3800+ that is being underclocked with powernowd by
default with the 8.04 RC4 LiveCD. Here's what is found.
[ 108.257546] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor
3800+ processors (2 cpu cores) (version 2.20.00)
[ 108.258011] powernow-k8: 0 : fid 0xc (2000 MHz), vid 0x8
[ 108.258015] powernow-k8: 1 : fid 0xa (1800 MHz), vid 0xa
[ 108.258017] powernow-k8: 2 : fid 0x2 (1000 MHz), vid 0x12
cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping : 2
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm
3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
bogomips : 2001.77
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
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping : 2
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm
3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
bogomips : 2001.77
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
** Affects: ubuntu
Importance: Undecided
Status: New
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Amd64 CPUThrottled by half with powernowd
https://bugs.launchpad.net/bugs/190831
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