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Thread: Laptop running hot :/

  1. #1
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Laptop running hot :/

    First I wanna say that I am relatively new to the whole linux deal as well as Ubuntu forums, I know enough to get around it but that's about it. I've recently installed Xubuntu on my older Sony Vaio laptop. I'm running the LXDE desktop environment. While idling it will get hot enough to burn my legs, causing me to have to find a pillow or something to set it on. I can't hear my fan working, but so far, my comp hasn't gotten hot enough to shut off. I've googled around looking to see if this would be normal. I apologize if this post is in the wrong section.

    So questions are:

    1. Is my comp temp normal?
    2. Is there a way short of hearing it that i can tell if my fan is working?
    3. If not, how do I go about fixing it?

    Kernel version: 2.6.38-11-generic

    less /proc/cpuinfo
    Code:
    processor       : 0
    vendor_id       : GenuineIntel
    cpu family      : 6
    model           : 15
    model name      : Intel(R) Core(TM)2 CPU         T5500  @ 1.66GHz
    stepping        : 6
    cpu MHz         : 1000.000
    cache size      : 2048 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     : 10
    /proc/cpuinfo
    sudo top
    Code:
    top - 04:43:23 up 28 min,  4 users,  load average: 0.01, 0.04, 0.06
    Tasks: 127 total,   1 running, 126 sleeping,   0 stopped,   0 zombie
    Cpu(s):  1.3%us,  1.3%sy,  0.5%ni, 95.2%id,  1.7%wa,  0.0%hi,  0.0%si,  0.0%st
    Mem:   2050904k total,   618588k used,  1432316k free,    55144k buffers
    Swap:  2085884k total,        0k used,  2085884k free,   323960k cached
    
      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
     1130 root      20   0 65484  15m 9420 S    3  0.8   0:23.41 Xorg               
     1799 lobos     20   0 94988  13m  10m S    3  0.7   0:01.73 xfce4-terminal     
     1610 lobos     20   0  321m  59m  31m S    1  3.0   0:48.03 chromium-browse    
     2183 lobos     20   0  146m  34m  21m S    1  1.7   0:23.08 chromium-browse    
     2068 lobos     20   0  142m  29m  18m S    1  1.5   0:20.33 chromium-browse    
     2204 lobos     25   5  153m  41m  19m S    1  2.1   0:04.80 chromium-browse    
     2291 root      20   0  2632 1136  860 R    1  0.1   0:00.14 top                
     1634 lobos     25   5  142m  27m  16m S    0  1.4   0:06.05 chromium-browse    
     1637 lobos     25   5  181m  67m  18m S    0  3.4   0:24.54 chromium-browse    
        1 root      20   0  3048 1816 1252 S    0  0.1   0:00.59 init               
        2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd           
        3 root      20   0     0    0    0 S    0  0.0   0:00.05 ksoftirqd/0        
        5 root      20   0     0    0    0 S    0  0.0   0:00.44 kworker/u:0        
        6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0        
        7 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1
    sudo sensors (while idle)
    Code:
    acpitz-virtual-0
    Adapter: Virtual device
    temp1:       +70.0°C  (crit = +105.0°C)                  
    temp2:       +70.0°C  (crit = +105.0°C)                  
    
    coretemp-isa-0000
    Adapter: ISA adapter
    Core 0:      +71.0°C  (high = +100.0°C, crit = +100.0°C)  
    
    coretemp-isa-0001
    Adapter: ISA adapter
    Core 1:      +69.0°C  (high = +100.0°C, crit = +100.0°C)
    sudo sensors (while using around 70% of the CPU)
    Code:
    acpitz-virtual-0
    Adapter: Virtual device
    temp1:       +91.0°C  (crit = +105.0°C)                  
    temp2:       +91.0°C  (crit = +105.0°C)                  
    
    coretemp-isa-0000
    Adapter: ISA adapter
    Core 0:      +91.0°C  (high = +100.0°C, crit = +100.0°C)  
    
    coretemp-isa-0001
    Adapter: ISA adapter
    Core 1:      +92.0°C  (high = +100.0°C, crit = +100.0°C)
    My apologies if the post is a little long, just wanted to include all the info that may be needed. Thank you everyone in advance for any help.

  2. #2
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Re: Laptop running hot :/

    Note: the second sensors command was after about 1 min of CPU usage. Still couldn't hear the fan.

  3. #3
    Join Date
    Oct 2009
    Beans
    151
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: Laptop running hot :/

    No, it's not normal. You need the fan.

    And don't use a pillow under it. You are closing the vents under the laptop. Try a hard surface.

  4. #4
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Re: Laptop running hot :/

    Sitting it on the table helped a bit. Down to 55 Celsius. I could get one of the cooling pads you set your laptop on, but that would seem to be in vain if my fan isn't spinning. Appreciate the suggestion though.

  5. #5
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Re: Laptop running hot :/

    Still no fan, still runs hot. Gonna keep searching the net. I have found supposed ways to control the fan speed, but none of them seem to work. (or I'm doing something wrong, yeah probably that) as always, any suggestions are welcome. This has been an official bump.

  6. #6
    Join Date
    Jun 2009
    Location
    NY
    Beans
    570
    Distro
    Kubuntu Development Release

    Re: Laptop running hot :/

    Hey take a look at this:

    https://wiki.ubuntu.com/DebuggingACPI

    Specifically, the debug section about fan issues and report back with what you've seen.

    - Red
    Everything in the future is a wave, everything in the past is a particle. -Lawrence Bragg

    Parabola: https://parabolagnulinux.org/
    Completely freed... Libre GNU/Linux !!!

  7. #7
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Re: Laptop running hot :/

    Sweet, a lead. I will definitely check this out and report back. Just looking at it, my /proc/acpi has
    Code:
    lobos@Taquito:~$ cd /proc/acpi/
    ac_adapter/ battery/    button/     
    lobos@Taquito:~$ cd /proc/acpi/
    So I believe this may be the issue.

  8. #8
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Re: Laptop running hot :/

    BIOS is up to date.

  9. #9
    Join Date
    Sep 2011
    Location
    Salem, IL
    Beans
    102

    Re: Laptop running hot :/

    this was part of the output when i entered dmesg | grep ACPI
    Don't honestly know if this has something to do with it, but i have a feeling it does.

    Code:
    [    0.571846] ACPI: Invalid active0 threshold
    [    0.572555] ACPI: Thermal Zone [TZ00] (77 C)
    [    0.573497] ACPI: Invalid active0 threshold
    [    0.574364] ACPI: Thermal Zone [TZ01] (77 C)

  10. #10
    Join Date
    Jun 2009
    Location
    NY
    Beans
    570
    Distro
    Kubuntu Development Release

    Re: Laptop running hot :/

    Hey can you run this command and post the output?

    Code:
    dmesg | grep -i acpi
    Also can you burn or usb bootable a newer version of the buntu you have and run it in live mode to see if the fan turns on? I think it's a kernel problem and newer buntu's have newer kernels. Also see if you can use the previous acpi command in the live mode.

    -Red
    Everything in the future is a wave, everything in the past is a particle. -Lawrence Bragg

    Parabola: https://parabolagnulinux.org/
    Completely freed... Libre GNU/Linux !!!

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