Public bug reported:
Laptop system,
manifacturer: HP
model: dv2699el (dv2500 series)
bios: F.21 (latest)
CPU data:
[EMAIL PROTECTED]:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
stepping : 11
cpu MHz : 2194.736
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm
constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4393.94
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
(same for Processor 1 - the second core)
this is when I try to load acpi-cpufreq
[EMAIL PROTECTED]:~$ sudo modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq
(/lib/modules/2.6.22-14-generic/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko):
No such device
[EMAIL PROTECTED]:~$ ls /sys/devices/system/cpu/
cpu0 cpu1 sched_mc_power_savings
[EMAIL PROTECTED]:~$ lsmod | grep -i cpufreq_stats
cpufreq_stats 8160 0
freq_table 6464 2 cpufreq_stats,cpufreq_ondemand
I also get this errors about ACPI when loading acpi-cpufreq:
[ 1008.017253] ACPI Error (psargs-0355): [\_PR_.CPU0._PSS] Namespace lookup
failure, AE_NOT_FOUND
[ 1008.017259] ACPI Error (psparse-0551): Method parse/execution failed
[\_PR_.CPU1._PSS] (Node ffff81007cf59de0), AE_NOT_FOUND
[ 1008.017293] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND,
Evaluating _PSS [20070126]
This problem is quite annoying since when CPU runs at 100% for long time
I get temps about 70-80°C and the laptop gets quite hot.
** Affects: ubuntu
Importance: Undecided
Status: New
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ACPI Error [...] AE_NOT_FOUND -> Frequency scaling not working at all on C2D
T7500
https://bugs.launchpad.net/bugs/176311
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