Find the answer to your Linux question:
Results 1 to 3 of 3
Hi, Just wondering if anyone else is having issues with cpu scaling on intel core 2 cpu's? I have only recently bought an Intel core 2 (E4600) as a trial ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Just Joined!
    Join Date
    Mar 2006
    Posts
    3

    Fedora Core 9 CPU frequency scaling unsupported


    Hi,

    Just wondering if anyone else is having issues with cpu scaling on intel core 2 cpu's? I have only recently bought an Intel core 2 (E4600) as a trial and I am finding the cpu scaling a bugger to get working.

    I have tried both Ubuntu and FC9 (currently running FC9).

    I have supplied cpuinfo, lsmod and packages installed.

    /var/log messages does not seem to give me any indication of where else to check.

    Any assistance would be appreciated.

    Thanks in advance

    ----------------------------
    $ sudo rpm -qa |grep cpu
    cpuspeed-1.2.1-5.fc9.x86_64
    cpufreq-utils-002-1.1.42.fc9.x86_64
    ----------------------------
    cpufreq-selector -g
    Missing argument for -g
    ----> No cpufreq support
    -----------------------------
    cat /proc/cpuinfo
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 6
    model : 15
    model name : Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz
    stepping : 13
    cpu MHz : 2399.996
    cache size : 2048 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 nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl est tm2 ssse3 cx16 xtpr lahf_lm
    bogomips : 4803.06
    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 E4600 @ 2.40GHz
    stepping : 13
    cpu MHz : 2399.996
    cache size : 2048 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 nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl est tm2 ssse3 cx16 xtpr lahf_lm
    bogomips : 4799.69
    clflush size : 64
    cache_alignment : 64
    address sizes : 36 bits physical, 48 bits virtual
    power management:
    ---------------------------------------------------
    sudo /sbin/lsmod
    Module Size Used by
    freq_table 13440 0
    bridge 59304 0
    bnep 21632 2
    rfcomm 44448 4
    l2cap 29312 16 bnep,rfcomm
    bluetooth 59044 5 bnep,rfcomm,l2cap
    fuse 51008 5
    sunrpc 185000 3
    ipt_REJECT 11776 2
    nf_conntrack_ipv4 17416 3
    iptable_filter 11392 1
    ip_tables 25232 1 iptable_filter
    ip6t_REJECT 12544 2
    xt_tcpudp 11648 4
    nf_conntrack_ipv6 22984 3
    xt_state 10752 6
    nf_conntrack 64528 3 nf_conntrack_ipv4,nf_conntrack_ipv6,xt_state
    ip6table_filter 11264 1
    ip6_tables 26640 1 ip6table_filter
    x_tables 26248 6 ipt_REJECT,ip_tables,ip6t_REJECT,xt_tcpudp,xt_stat e,ip6_tables
    dm_mirror 32004 0
    dm_multipath 24976 0
    dm_mod 62104 2 dm_mirror,dm_multipath
    ipv6 276232 52 ip6t_REJECT,nf_conntrack_ipv6
    sr_mod 23732 0
    cdrom 40616 1 sr_mod
    snd_hda_intel 457780 3
    snd_seq_dummy 11524 0
    snd_seq_oss 39232 0
    snd_seq_midi_event 15104 1 snd_seq_oss
    ppdev 15624 0
    snd_seq 61840 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
    snd_seq_device 15508 3 snd_seq_dummy,snd_seq_oss,snd_seq
    snd_pcm_oss 52096 0
    snd_mixer_oss 23296 1 snd_pcm_oss
    snd_pcm 86024 2 snd_hda_intel,snd_pcm_oss
    snd_timer 29584 2 snd_seq,snd_pcm
    parport_pc 33816 0
    nvidia 8108528 24
    snd_page_alloc 16912 2 snd_hda_intel,snd_pcm
    aic7xxx 132924 0
    parport 42784 2 ppdev,parport_pc
    snd_hwdep 16520 1 snd_hda_intel
    pcspkr 11136 0
    snd 66808 16 snd_hda_intel,snd_seq_dummy,snd_seq_oss,snd_seq,sn d_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd _timer,snd_hwdep
    scsi_transport_spi 32640 1 aic7xxx
    iTCO_wdt 19920 0
    i2c_i801 17692 0
    r8169 35844 0
    i2c_core 28448 2 nvidia,i2c_i801
    button 15776 0
    soundcore 14864 1 snd
    pata_jmicron 13056 0
    ahci 35976 0
    iTCO_vendor_support 11780 1 iTCO_wdt
    sg 40528 0
    pata_acpi 13824 0
    ata_piix 29188 6
    ata_generic 14596 0
    libata 149024 5 pata_jmicron,ahci,pata_acpi,ata_piix,ata_generic
    sd_mod 33200 9
    scsi_mod 150232 6 sr_mod,aic7xxx,scsi_transport_spi,sg,libata,sd_mod
    ext3 129808 4
    jbd 52904 1 ext3
    mbcache 15876 1 ext3
    uhci_hcd 29984 0
    ohci_hcd 29060 0
    ehci_hcd 40460 0

  2. #2
    Linux Guru
    Join Date
    Nov 2004
    Posts
    6,110
    Have you enabled it in your BIOS? I found the same problem with two recent Intels and only later realised that the motherboard had it disabled by default. After that it's automatic and should be OS independant, it's based on usage rather than explicit instructions as far as I'm aware.

  3. #3
    Just Joined!
    Join Date
    Mar 2006
    Posts
    3

    Bios cpu enhanced halt (c1e) turned on

    I have definitely got c1e turned on in the bios and updated to the most current version of the bios from gigabyte my MB is a GA-P35-DS3.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •