[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=7463





------- Additional Comments From olda.plchot@gmail.com  2007-01-31 06:14 -------
Hello again,
  I think it could be ACPI related problem. Maybe some types of BIOS does not
provide that frequency tables in a correct way. I heard some people resolved
this problem by upgrading BIOS. Maybe we could chceck if we obtained correct
values and if not, we could try values coded in the speedstep-centrino.c, which
are based on the Intel datasheets.

Olda

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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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shaohua.li@intel.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |REJECTED
         Resolution|                            |INVALID




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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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------- Comment #19 from renatoyamane@mandic.com.br  2008-05-28 11:07 -------
I don't have any problem with Kernel available in Debian Lenny or other release
>=2.6.23.16

# hwinfo --bios
01: None 00.0: 10105 BIOS
  [Created at bios.174]
  Unique ID: rdCR.lZF+r4EgHp4
  Hardware Class: bios
  BIOS Keyboard LED Status:
    Scroll Lock: off
    Num Lock: off
    Caps Lock: off
  Base Memory: 639 kB
  PnP BIOS: SST2400
  BIOS: extended read supported
  BIOS32 Service Directory Entry: 0xea7c0
  SMBIOS Version: 2.3
  BIOS Info: #0
    Vendor: "TOSHIBA"
    Version: "Version 2.00"
    Date: "02/07/2006"
    Start Address: 0xeb000
    ROM Size: 512 kB
    Features: 0x02b3000000007f1a9f90
      ISA supported
      PCI supported
      PCMCIA supported
      PnP supported
      APM supported
      BIOS flashable
      BIOS shadowing allowed
      CD boot supported
      BIOS ROM socketed
      EDD spec supported
      1.2MB NEC 9800 Japanese Floppy supported
      720kB Floppy supported
      2.88MB Floppy supported
      Print Screen supported
      8042 Keyboard Services supported
      Serial Services supported
      Printer Services supported
      CGA/Mono Video supported
      ACPI supported
      USB Legacy supported
      LS-120 boot supported
      ATAPI ZIP boot supported
      Smart Battery supported
      F12 Network boot supported

In my case, this bug can be closed.

Best regards,
Renato S. Yamane


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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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------- Comment #18 from linux@brodo.de  2008-05-28 06:08 -------
Can't we close this bug then, if upgrading the BIOS fixes this issue?


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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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------- Comment #17 from olda.plchot@gmail.com  2008-04-18 01:23 -------
Hello,
  since i have upgraded my notebook with a latest beta of available bios,
everything started to work. From then, also acpi_cpufreq works. I think we
would need info from someone whos bios still does not handle the CPU correctly.
I am sorry, I can not post more relevant results.

Thanks a lot,
              Oldrich Plchot


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------- Comment #16 from renatoyamane@mandic.com.br  2008-04-04 08:50 -------
This work fine to me:

grep -i acpi ../linux-2.6.23.16/.config

# Power management options (ACPI, APM)
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_PROC_EVENT=y
CONFIG_ACPI_AC=m
CONFIG_ACPI_BATTERY=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_DOCK=m
CONFIG_ACPI_BAY=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_THERMAL=m
# CONFIG_ACPI_ASUS is not set
CONFIG_ACPI_TOSHIBA=m
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
CONFIG_ACPI_CONTAINER=m
CONFIG_ACPI_SBS=m
CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
CONFIG_PNPACPI=y
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_DEBUG is not set
CONFIG_THINKPAD_ACPI_BAY=y
CONFIG_BLK_DEV_IDEACPI=y
CONFIG_ATA_ACPI=y

Regards,
Renato S. Yamane


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------- Comment #15 from protasnb@gmail.com  2008-04-04 08:45 -------
Oldrich and other reporters, were you able to use acpi_cpufreq? Has the problem
been resolved for you?
Thanks.


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bugzilla.kernel.org@rolf.leggewie.biz changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla.kernel.org@rolf.leg
                   |                            |gewie.biz




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venkatesh.pallipadi@intel.com changed:

           What    |Removed                     |Added
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                 CC|                            |ubuntu@sardion.com




------- Comment #14 from venkatesh.pallipadi@intel.com  2007-10-18 14:08 -------
*** Bug 7607 has been marked as a duplicate of this bug. ***


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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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------- Comment #13 from akpm@osdl.org  2007-10-18 13:44 -------
I asked davej about this and he said:

The only safe way to use scaling on 'dothan' cores is with ACPI.
We just have no way to tell which of the four sets of voltages
is in use.  People keep proposing patches to hardcode a set of
tables for them which "works for them", but could do *anything*
on someone elses system.
Even if we added it as a CONFIG option, I'm worried that
people will turn it on not understanding the consequences
and either plague us with crappy bug reports of flaky kernels (or worse).
(And you guarantee some distros will turn it on to
 "make hardware 'just work'")

All-round crappy situation really, we're between a rock
and a hard place, and ACPI is the best hope we've got.


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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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------- Comment #12 from leszek.tarkowski@gmail.com  2007-10-18 13:01 -------
I have laptop (MAxdata 8100X) with dothan 1.6GHz and no luck - both
speedstep-centrino and acpi-cpufreq (kernel 2.6.22 from gutsy). So there are
STILL some old laptops with are in need for hardcoded freq tables (everyting
was working on old ubuntu kernels with were pathed this way). Please don't
ignore old machines...


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len.brown@intel.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|acpi_power-processor@kernel-|cpufreq@www.linux.org.uk
                   |bugs.osdl.org               |




------- Comment #11 from len.brown@intel.com  2007-08-22 17:51 -------
acpi-cpufreq works on the system at hand,
and so I advocate that this sighting be closed as WILL_NOT_FIX.

Nobody is maintaining speedstep-centrino, and I do not advocate
that it be enhanced.


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akpm@osdl.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Owner|cpufreq@www.linux.org.uk    |acpi_power-processor@kernel-
                   |                            |bugs.osdl.org



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[Bug 7463] CPU frequency scaling(cpufreq) does not work. speedstep-centrino.c problem

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akpm@osdl.org changed:

           What    |Removed                     |Added
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                 CC|                            |akpm@osdl.org,
                   |                            |jeremy@goop.org



------- Additional Comments From akpm@osdl.org  2007-01-31 01:31 -------
Jeremy, could you please take a look, see if we can get a patch out of this?

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akpm@osdl.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Owner|drivers_other@kernel-       |cpufreq@www.linux.org.uk
                   |bugs.osdl.org               |



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