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On 2007-11-28T23:47:15+00:00 Ryan wrote:

>From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.9) Gecko/20071105 
Fedora/2.0.0.9-1.fc9 Firefox/2.0.0.9

Description of problem:
On my Santa Rosa based Fujitsu T4220 notebook the CPU frequency is permanently 
stuck at 800MHz (actual max is 2GHz) no matter what the load. This occurs no 
matter which governor is selected (userspace, ondemand, performance etc..).

On resume from suspend to ram, the frequency fluctuates between 800MHz
and 1.6GHz for approx. a minute, and then goes back to being stuck at
800MHz.

Version-Release number of selected component (if applicable):
kernel-2.6.24-0.42.rc3.git1.fc9

How reproducible:
Always


Steps to Reproduce:
1. boot into fedora
2. check /cat/proc/cpuinfo ( will be 800MHz )
3. run something cpu intensive
3. check cpuinfo (still stuck at 800MHz)

Actual Results:
The CPU frequency doesn't change

Expected Results:
The frequency should increase to max if needed and go back to min when not.

Additional info:

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/0

------------------------------------------------------------------------
On 2007-11-28T23:48:38+00:00 Ryan wrote:

Created attachment 271951
lspci -vv output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/1

------------------------------------------------------------------------
On 2007-11-28T23:49:31+00:00 Ryan wrote:

Created attachment 271961
lspci -vvn output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/2

------------------------------------------------------------------------
On 2007-11-28T23:50:05+00:00 Ryan wrote:

Created attachment 271971
dmidecode output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/3

------------------------------------------------------------------------
On 2007-11-28T23:57:42+00:00 Ryan wrote:

[ryan@tablet ~]$ ls /sys/devices/system/cpu/cpu0/cpufreq/
affected_cpus     scaling_available_frequencies  scaling_governor
cpuinfo_cur_freq  scaling_available_governors    scaling_max_freq
cpuinfo_max_freq  scaling_cur_freq               scaling_min_freq
cpuinfo_min_freq  scaling_driver                 scaling_setspeed

[root@tablet ryan]# cat /sys/devices/system/cpu/cpu0/cpufreq/*
0 1
800000
2001000
800000
2001000 2000000 1600000 1200000 800000 
userspace performance 
800000
acpi-cpufreq
performance
800000
800000

Also, I am not sure how relevant this is, but
/proc/acpi/processor/CPU0/throttling outputs "<not supported>".

I have the same problems on every linux distro I have tried on this
laptop

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/4

------------------------------------------------------------------------
On 2007-12-01T00:48:49+00:00 Ryan wrote:

Created attachment 274581
dmesg output

Here's my dmesg

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/5

------------------------------------------------------------------------
On 2007-12-10T20:54:09+00:00 Jaakko wrote:

On updated Fedora 8, on Dell Inspiron 9300 laptop, I have the same problem. 
Frequency policy is stuck at 800 MHz.  Scaling worked in the past on some
earlier FC, not sure if I paid attention so much on FC7.

# cpufreq-info 
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to li...@brodo.de, please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which need to switch frequency at the same time: 0
  hardware limits: 800 MHz - 1.73 GHz
  available frequency steps: 1.73 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: frequency should be within 800 MHz and 800 MHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.

# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.73GHz
stepping        : 8
cpu MHz         : 800.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up bts est tm2
bogomips        : 1597.42
clflush size    : 64

# cat /proc/acpi/processor/CPU0/throttling 
state count:             8
active state:            T0
state available: T0 to T7
states:
   *T0:                  00%
    T1:                  12%
    T2:                  25%
    T3:                  37%
    T4:                  50%
    T5:                  62%
    T6:                  75%
    T7:                  87%


Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/6

------------------------------------------------------------------------
On 2007-12-10T21:59:41+00:00 Chuck wrote:

(In reply to comment #4)
> [ryan@tablet ~]$ ls /sys/devices/system/cpu/cpu0/cpufreq/
> affected_cpus     scaling_available_frequencies  scaling_governor
> cpuinfo_cur_freq  scaling_available_governors    scaling_max_freq
> cpuinfo_max_freq  scaling_cur_freq               scaling_min_freq
> cpuinfo_min_freq  scaling_driver                 scaling_setspeed
> 
> [root@tablet ryan]# cat /sys/devices/system/cpu/cpu0/cpufreq/*
> 0 1
> 800000
> 2001000
> 800000
> 2001000 2000000 1600000 1200000 800000 

That 2001000 doesn't look right...

Try:

# echo "2000000" >scaling_max_freq


Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/7

------------------------------------------------------------------------
On 2007-12-10T22:34:35+00:00 Ryan wrote:

(In reply to comment #7)
> (In reply to comment #4)
> > [ryan@tablet ~]$ ls /sys/devices/system/cpu/cpu0/cpufreq/
> > affected_cpus     scaling_available_frequencies  scaling_governor
> > cpuinfo_cur_freq  scaling_available_governors    scaling_max_freq
> > cpuinfo_max_freq  scaling_cur_freq               scaling_min_freq
> > cpuinfo_min_freq  scaling_driver                 scaling_setspeed
> > 
> > [root@tablet ryan]# cat /sys/devices/system/cpu/cpu0/cpufreq/*
> > 0 1
> > 800000
> > 2001000
> > 800000
> > 2001000 2000000 1600000 1200000 800000 
> 
> That 2001000 doesn't look right...

Yeah, I'm not sure about that either.

> 
> Try:
> 
> # echo "2000000" >scaling_max_freq
> 

I've tried that before and it has no effect. I can try echoing anything into
that file as root and it will not change from '800000'

I've noticed a few other people with Fujitsu laptops (not just T4220's) with the
same problem as me. All the machines have the following in their dmesg output:

ACPI: EC: Look up EC in DSDT
ACPI Error (tbinstal-0134): Table has invalid signature [    ], must be SSDT,
PSDT or OEMx [20070126]
ACPI Error (psparse-0537): Method parse/execution failed [\_SB_._INI] (Node
f7801440), AE_BAD_SIGNATURE

I don't know enough about how ACPI works to say whether that has anything to do
with /proc/acpi/processor/CPU0/throttling saying  "<not supported>", or if it is
even relevant, but it seems to be a common theme.


Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/8

------------------------------------------------------------------------
On 2007-12-17T19:57:32+00:00 Jaakko wrote:

Created attachment 289802
dmesg output of booting with cpufreq.debug=7 option

Line 443 says
"freq-table: verification lead to (800000 - 1733000 kHz) for cpu 0"
which is correct, but line 446 says
"freq-table: verification lead to (800000 - 800000 kHz) for cpu 0"
and cpu remains stuck at 800MHz for me.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/9

------------------------------------------------------------------------
On 2008-03-18T14:42:37+00:00 Łukasz wrote:

Created attachment 298400
dmesg with options acpi=debug cpufreq.debug=7

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/27

------------------------------------------------------------------------
On 2008-03-18T14:46:11+00:00 Łukasz wrote:

Comment on attachment 298400
dmesg with options acpi=debug cpufreq.debug=7

I have the same problem on a Thinkpad R61i with an up-to-date Fedora 8.

I don't get any of the ACPI errors mentioned earlier but scaling_max_frequency
is also stuck at 800000.
$ echo 1467000 >  /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
 doesn't change it.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/28

------------------------------------------------------------------------
On 2008-03-18T19:55:51+00:00 Jaakko wrote:

About my case, comment #9.  This was caused by dust that prevented
the GPU fan from spinning.  Works now fine.  The root cause was hinted
by running the Dell Diagnostics software that came with the computer.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/29

------------------------------------------------------------------------
On 2008-03-21T15:47:58+00:00 Łukasz wrote:

It looks like removing both the battery and AC connector had fixed the problem
in my case.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/30

------------------------------------------------------------------------
On 2008-05-14T04:03:21+00:00 Bug wrote:

Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/31

------------------------------------------------------------------------
On 2009-06-02T10:53:43+00:00 Jay wrote:

I believe that I am seeing the same type of behaviour in Fedora 11
x86_64. I have a Pentium Dual Core E2180 running on an abit ab9 pro
motherboard. The first core (CPU0) does not seem to scale ever.

# cat /proc/cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Pentium(R) Dual  CPU  E2180  @ 2.00GHz
stepping        : 13
cpu MHz         : 1224.000
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
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 pat 
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm 
constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor ds_cpl est tm2 
ssse3 cx16 xtpr pdcm lahf_lm
bogomips        : 4079.98
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Pentium(R) Dual  CPU  E2180  @ 2.00GHz
stepping        : 13
cpu MHz         : 1224.000
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
apicid          : 1
initial apicid  : 1
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 pat 
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm 
constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor ds_cpl est tm2 
ssse3 cx16 xtpr pdcm lahf_lm
bogomips        : 4079.40
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

# cpufreq-info 
cpufrequtils 005: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which need to switch frequency at the same time: 0
  hardware limits: 1.22 GHz - 2.04 GHz
  available frequency steps: 2.04 GHz, 1.63 GHz, 1.22 GHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: frequency should be within 1.22 GHz and 1.22 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 1.22 GHz (asserted by call to hardware).
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which need to switch frequency at the same time: 1
  hardware limits: 1.22 GHz - 2.04 GHz
  available frequency steps: 2.04 GHz, 1.63 GHz, 1.22 GHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: frequency should be within 1.22 GHz and 2.04 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 1.22 GHz (asserted by call to hardware).


This looks to be a bug in the acpi-cpufreq driver as I also see the same issue 
in Ubuntu (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/324211)

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/35

------------------------------------------------------------------------
On 2009-06-02T11:30:57+00:00 Jay wrote:

Created attachment 346232
jay's lscpi -vv output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/36

------------------------------------------------------------------------
On 2009-06-02T11:31:40+00:00 Jay wrote:

Created attachment 346233
lspci -vvn output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/37

------------------------------------------------------------------------
On 2009-06-02T11:32:06+00:00 Jay wrote:

Created attachment 346234
jay's lsmod output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/38

------------------------------------------------------------------------
On 2009-06-02T11:32:51+00:00 Jay wrote:

Created attachment 346235
jay's dmidecode output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/39

------------------------------------------------------------------------
On 2009-06-02T11:33:17+00:00 Jay wrote:

Created attachment 346236
jay's dmesg output

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/40

------------------------------------------------------------------------
On 2009-06-09T23:14:30+00:00 Bug wrote:


This message is a reminder that Fedora 9 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 9.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '9'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 9's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 9 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/41

------------------------------------------------------------------------
On 2009-07-14T15:40:09+00:00 Bug wrote:


Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/comments/42


** Changed in: linux (Fedora)
   Importance: Unknown => Medium

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/177076

Title:
  acpi-cpufreq doesn't allow >800Mhz on Fujistu T4220

Status in linux package in Ubuntu:
  Won't Fix
Status in linux source package in Hardy:
  Won't Fix
Status in linux package in Fedora:
  Won't Fix

Bug description:
  Binary package hint: linux-source-2.6.24

  If the machine (Fujitsu T4220) is booted without any cpufreq modules it runs 
at 2Ghz.
  Soon after I run 'modprobe acpi-cpufreq' the speed drops to 800Mhz
  When I load the acpi-cpufreq module at first it reports 2001000 for 
cpuinfo_cur_freq but drops through each of the available frequencies at a rate 
of about 1 step per second.
  After this no matter what I do I can't increase this (regardless of cpufreq 
governor used)
  According to /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_max_freq the max 
speed is 2001000 but scaling_max_freq is set to 800000 and can not be changed. 
I have tried "echo 2001000 > scaling_max_freq" but no change is made.

  Below is data I hope is useful

  # uname -a
  Linux fugue 2.6.24-2-generic #1 SMP Thu Dec 13 23:21:19 GMT 2007 x86_64 
GNU/Linux

  root@fugue:/sys/devices/system/cpu/cpu0/cpufreq# grep "." *
  affected_cpus:0 1
  cpuinfo_cur_freq:800000
  cpuinfo_max_freq:2001000
  cpuinfo_min_freq:800000
  scaling_available_frequencies:2001000 2000000 1600000 1200000 800000 
  scaling_available_governors:userspace performance 
  scaling_cur_freq:800000
  scaling_driver:acpi-cpufreq
  scaling_governor:userspace
  scaling_max_freq:800000
  scaling_min_freq:800000
  scaling_setspeed:800000

  # cat /proc/cpuinfo 
  processor     : 0
  vendor_id     : GenuineIntel
  cpu family    : 6
  model         : 15
  model name    : Intel(R) Core(TM)2 Duo CPU     T7300  @ 2.00GHz
  stepping      : 10
  cpu MHz               : 800.000
  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 pbe syscall lm 
constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 
ssse3 cx16 xtpr lahf_lm ida
  bogomips      : 3994.31
  clflush size  : 64
  cache_alignment       : 64
  address sizes : 36 bits physical, 48 bits virtual
  power management:

  processor     : 1
  vendor_id     : GenuineIntel
  cpu family    : 6
  model         : 15
  model name    : Intel(R) Core(TM)2 Duo CPU     T7300  @ 2.00GHz
  stepping      : 10
  cpu MHz               : 800.000
  cache size    : 4096 KB
  physical id   : 0
  siblings      : 2
  core id               : 1
  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 pbe syscall lm 
constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 
ssse3 cx16 xtpr lahf_lm ida
  bogomips      : 3989.97
  clflush size  : 64
  cache_alignment       : 64
  address sizes : 36 bits physical, 48 bits virtual
  power management:

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