1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

SpeedStep in Ubuntu

Discussion in 'Linux & Open Source' started by ghgh, 6 Jan 2007.

  1. ghgh

    PermaBanned

    Joined: 27 Aug 2006

    Posts: 758

    Location: bideford/exeter, devon

    Hi

    Ive got ubuntu running on a p4 1800-m laptop and it only runs at 1200MHz due to speedstep not working properly. This is the info I have. I was wondering if there is any way to make it run at 1800MHz, like its meant to. Ive tried googling but can't find anything useful to cure this problem.

    [email protected]:~$ sudo powernowd
    Password:
    powernowd: PowerNow Daemon v0.97, (c) 2003-2006 John Clemens
    powernowd: Found 1 scalable unit: -- 1 'CPU' per scalable unit
    powernowd: cpu0: 1200Mhz - 1800Mhz (2 steps)

    [email protected]:~$ cat /proc/cpuinfo
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz
    stepping : 7
    cpu MHz : 1196.329
    cache size : 512 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 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
    bogomips : 2395.05

    thanks very much for any help.
     
  2. ghgh

    PermaBanned

    Joined: 27 Aug 2006

    Posts: 758

    Location: bideford/exeter, devon

    Ive added the cpu frequency selector to the panel and did
    Code:
    $sudo chmod +s /usr/bin/cpufreq-selector
    like a site said but when I change it to 1.8gig even under 100% load it goes back to 1.2gig most of the time! anyone got any ideas?

    thanks
     
  3. 900I

    Gangster

    Joined: 27 Jul 2003

    Posts: 336

    Location: Wakefield

    Theres an applet called EmiFreq 0.18, can't remember if I got it from an Ubuntu forum link or through Synaptic. When you add it to the panel you can control the cpu speed manually or set it to Auto.
     
  4. M0KUJ1N

    PermaBanned

    Joined: 17 Mar 2004

    Posts: 1,486

    Location: Edinburgh

    What make and model is your laptop? Often laptops have slightly buggy implementations of ACPI, usually to allow extra functions for power saving and the like.

    There may be some hack to get this working properly
     
  5. ghgh

    PermaBanned

    Joined: 27 Aug 2006

    Posts: 758

    Location: bideford/exeter, devon

    thanks for the help

    ive tried to install that applet but one of the depencies isnt there and I downloaded it and it says I have a later one installed, anyone know how I can make the 'libatk1.0-0' dependency use this 'libglib2-0.0' as it wont work with the one I have which is a later version? is there a toolkit I can download that contains all the files needed for the applet?

    the laptop is a dell c840 with a p4-m 1800 and 768MB memory.

    cheers,
    ghgh
     
  6. M0KUJ1N

    PermaBanned

    Joined: 17 Mar 2004

    Posts: 1,486

    Location: Edinburgh

  7. ghgh

    PermaBanned

    Joined: 27 Aug 2006

    Posts: 758

    Location: bideford/exeter, devon

    Thanks for the link

    I think i'll leave it how it is if it means recompiling the kernel as im very new to linux and would probably mess it up, my cd rom drive is dodgy so if this happened i might not even be able to get the os back installed.

    is this probably the only way to get it working at its proper speed?

    cheers
     
  8. ghgh

    PermaBanned

    Joined: 27 Aug 2006

    Posts: 758

    Location: bideford/exeter, devon

    If anyone was wondering I got it sorted...added the cpu frequency monitor panel at the top of the screen then changed it to show the frequency governors menu on the drop down list - this allowed me to set it to 'performance' and now it always stays at 1800MHz once set to 'performance' mode.

    thats all there was to it.

    thanks for all the help.

    ghgh
     
    Last edited: 21 Jan 2007