Comment 18 for bug 64133

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@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