[Bugme-new] [Bug 8980] New: CPU fan

[bugme-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=8980

           Summary: CPU fan
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.20-16
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Power-Fan
        AssignedTo: acpi_power-fan at kernel-bugs.osdl.org
        ReportedBy: skyval at gmail.com


Most recent kernel where this bug did not occur: 

kernel 2.6.20-16-generic

Distribution: Ubuntu 7.04

Hardware Environment:

• CPU Celeron  M processor 430 (1.73GHz, 1MB L2cache)

• Chipset Intel 945GM Express chipset

• LCD 15.4" WXGA (1280x800)

• Memory 512MB (DDR2)

• VGA ATI Radeon Xpress 200M up to 256MB (UMA)
• HDD 60GB SATA (5400rpm)
• Optical storage DVD Super Multi drive DL

• Communications 56K/ LAN/ Wireless LAN (802.11b/g)

• Expansion slots 2x USB 2.0/ PC Card Type II

• Battery Battery life 1:35

Software Environment:
Ubuntu 7.04 

Problem Description:

Hi,
In the past few days i became quite frustrated with my Toshiba Satellite
L30-113a laptop. Thing is i can’t get the ACPI to work. Or should i say it
works partially, the functional keys work, i got the sound and the wireless
working, yet an important thing in the laptop is not working – namely the CPU
fan. I did some research and found that Toshiba are not very Linux friendly,
yet there must be some solution.

So far i have done this:

I turned on Toshiba support in the ACPI at the kernel and compile it.
The ACPI recognized and displayed the battery and the functional keys

#cat /proc/toshiba/ - missing
#cat /proc/acpi/toshiba - missing

#lsmod | grep acpi

pcc_acpi 14080 0
dev_acpi 12292 0
asus_acpi 17308 0

It is clear that toshiba_acpi is missing and the module is not loaded

#sudo modprobe toshiba_acpi

FATAL: Error inserting toshiba_acpi
(/lib/modules/2.6.20-16-generic/kernel/drivers/acpi/toshiba_acpi.ko): No such
device

#find /lib/modules/`uname -r` -name "tosh*"

/lib/modules/2.6.20-16-generic/kernel/drivers/acpi/toshiba_acpi.ko
/lib/modules/2.6.20-16-generic/kernel/drivers/char/toshiba.ko

Yet the module is present but it’s not loaded!

#lsmod | grep cpu

cpufreq_userspace 5408 0
cpufreq_stats 7744 0
freq_table 6048 2 cpufreq_stats,cpufreq_ondemand
cpufreq_powersave 2944 0
cpufreq_ondemand 8876 0
cpufreq_conservative 8712 0

#toshset – says that the module is not loaded

#acpi -V
Battery 1: charged, 100%
Thermal 1: ok, 54.0 degrees C
AC Adapter 1: on-line

#dmesg – nothing suspicious


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