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Hi all. I have trouble with throttling with my cpu, it seems that no module exists for my processor. while the notebook is running the frequency is always 1200 MHz ...
  1. #1
    Just Joined!
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    No CPU Frequency scaling

    Hi all.
    I have trouble with throttling with my cpu, it seems that no module exists for my processor.

    while the notebook is running the frequency is always 1200 MHz and each cpufreq module i've tryed to modprobe says me that there are no supported devices.


    Are there any risk on running always at the top frequency?
    Can i damage the battery?


    I've tryed running windows and the only difference with debian is that throttling is abilited but voltage and temperature are the same i've on linux (~1.2v and ~33C).


    How cpu throttling improve battery life even if core temp and voltage do not change?

    Thanks

  2. #2
    Linux Guru reed9's Avatar
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    What is your CPU? Post the output of
    Code:
    cat /proc/cpuinfo
    Which module did you try loading? Please post the exact commands you tried and their output.

    Also post the output of
    Code:
    lsmod

  3. #3
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    Sorry for answering late.

    Code:
    processor	: 0
    vendor_id	: GenuineIntel
    cpu family	: 6
    model		: 23
    model name	: Genuine Intel(R) CPU           U2300  @ 1.20GHz
    stepping	: 10
    cpu MHz		: 1200.071
    cache size	: 1024 KB
    physical id	: 0
    siblings	: 2
    core id		: 0
    cpu cores	: 2
    apicid		: 0
    initial apicid	: 0
    fdiv_bug	: no
    hlt_bug		: no
    f00f_bug	: no
    coma_bug	: no
    fpu		: yes
    fpu_exception	: yes
    cpuid level	: 13
    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 nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm tpr_shadow vnmi flexpriority
    bogomips	: 2400.14
    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		: 23
    model name	: Genuine Intel(R) CPU           U2300  @ 1.20GHz
    stepping	: 10
    cpu MHz		: 1200.071
    cache size	: 1024 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	: 13
    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 nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm tpr_shadow vnmi flexpriority
    bogomips	: 2399.94
    clflush size	: 64
    cache_alignment	: 64
    address sizes	: 36 bits physical, 48 bits virtual
    power management:

    Code:
    Module                  Size  Used by
    loop                    9753  0 
    rfcomm                 25131  2 
    l2cap                  21677  9 rfcomm
    crc16                   1027  1 l2cap
    bluetooth              36327  4 rfcomm,l2cap
    nf_conntrack_ipv4       7597  1 
    nf_defrag_ipv4           763  1 nf_conntrack_ipv4
    xt_state                 927  1 
    nf_conntrack           37971  2 nf_conntrack_ipv4,xt_state
    iptable_filter          1790  1 
    ip_tables               7690  1 iptable_filter
    x_tables                8335  2 xt_state,ip_tables
    ppdev                   4058  0 
    parport_pc             15787  0 
    lp                      5570  0 
    parport                22554  3 ppdev,parport_pc,lp
    cpufreq_stats           1940  0 
    cpufreq_powersave        602  0 
    cpufreq_conservative     4018  0 
    cpufreq_userspace       1476  0 
    fuse                   43750  7 
    coretemp                3225  0 
    snd_hda_codec_intelhdmi     9027  1 
    arc4                     974  2 
    ecb                     1405  2 
    snd_hda_codec_idt      35245  1 
    snd_hda_intel          15063  0 
    snd_hda_codec          44938  3 snd_hda_codec_intelhdmi,snd_hda_codec_idt,snd_hda_intel
    ac                      1640  0 
    snd_hwdep               4054  1 snd_hda_codec
    snd_pcm_oss            28479  0 
    snd_mixer_oss          10461  1 snd_pcm_oss
    snd_pcm                47362  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
    uvcvideo               45194  0 
    wmi                     3575  0 
    b43                   131236  0 
    videodev               25541  1 uvcvideo
    i915                  216959  0 
    psmouse                32505  0 
    battery                 3782  0 
    evdev                   5609  8 
    v4l1_compat            10250  2 uvcvideo,videodev
    rng_core                2178  1 b43
    drm_kms_helper         17239  1 i915
    drm                   107536  2 i915,drm_kms_helper
    serio_raw               2916  0 
    snd_timer              12258  1 snd_pcm
    i2c_i801                6334  0 
    i2c_algo_bit            3497  1 i915
    intel_agp              20213  1 
    mac80211              121785  1 b43
    processor              25871  2 
    button                  3586  1 i915
    i2c_core               12648  5 videodev,i915,drm,i2c_i801,i2c_algo_bit
    iTCO_wdt                6041  0 
    agpgart                19516  2 drm,intel_agp
    video                  14605  1 i915
    snd                    33587  9 snd_hda_codec_intelhdmi,snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
    cfg80211               87586  2 b43,mac80211
    output                  1204  1 video
    rfkill                 10260  2 bluetooth,cfg80211
    led_class               1757  1 b43
    soundcore               3450  1 snd
    snd_page_alloc          5037  2 snd_hda_intel,snd_pcm
    ext3                   94121  1 
    jbd                    32161  1 ext3
    mbcache                 3762  1 ext3
    sd_mod                 25781  5 
    crc_t10dif              1012  1 sd_mod
    ahci                   26478  4 
    libata                113952  1 ahci
    ssb                    30357  1 b43
    pcmcia                 17442  2 b43,ssb
    r8169                  24680  0 
    mii                     2714  1 r8169
    scsi_mod              101264  2 sd_mod,libata
    pcmcia_core            20438  3 b43,ssb,pcmcia
    uhci_hcd               16013  0 
    ehci_hcd               27450  0 
    usbcore                97974  4 uvcvideo,uhci_hcd,ehci_hcd
    nls_base                4541  1 usbcore
    thermal                 9206  0 
    fan                     2586  0 
    thermal_sys             9378  4 processor,video,thermal,fan
    I'm using linux-image-2.6.32

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