[Bug 64133] Re: CPU not detected on a Compaq Proliant 3000 dual P II 400 Mhz

C. Brayton cbrayton at boizebueditorial.com
Wed Jan 6 13:49:58 UTC 2010

I have had this problem in both 2.6.31-17 and 2.6.32-9 (both generic and
using the compiled-in acpi-cpufreq)

cat /proc/cpuinfo yields

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 14
model name	: Genuine Intel(R) CPU           T2500  @ 2.00GHz
stepping	: 8
cpu MHz		: 1000.000
cache size	: 2048 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc arch_perfmon bts aperfmperf pni monitor vmx est tm2 xtpr pdcm
bogomips	: 3994.65
clflush size	: 64
cache_alignment	: 64
address sizes	: 32 bits physical, 32 bits virtual

The CPU is a Duo 2 T2500 @2GHz, as shown, but the GHz is shown as 1GHz.
This throttles down my CPU to a maximum of 1GHz, making frequency
scaling impossible. I have tried disabling scaling in BIOS (Dell
Latitude D620, v.A10) to at least get the cpu to run at a constant 2GHz
so I can work while waiting for a fix. No joy so far. Have even thought
of compiling the old speedstep-centrino driver as a module, but not done
with that time-intensive experiment yet.

clscpu yields:

cbrayton at macunaimachine:~/Desktop/Leituras$ lscpu
Architecture:          i686
CPU(s):                2
Thread(s) per core:    1
Core(s) per socket:    2
CPU socket(s):         1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 14
Stepping:              8
CPU MHz:               1000.000
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              2048K

CPU not detected on a Compaq Proliant 3000 dual P II 400 Mhz
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