Toshiba Laptop heats up

[yogeshp08]

Hello,

I recently installed Ubuntu 10.10 on my Toshiba L505-S5971.
I dual boot Ubuntu with Windows 7.

I have been using Ubuntu all the time. And for no reason the systems heats up on Ubuntu. It never did the same on Windows. I cannot figure out why. What might be wrong?

Please help. Thanks

[agnibhu]

Hi,

I also have this problem.
I'm using Dell 1440.
uname -a
Linux dell 2.6.35-28-generic #49-Ubuntu SMP Tue Mar 1 14:40:58 UTC 2011 i686 GNU/Linux

less /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU T6500 @ 2.10GHz
stepping : 10
cpu MHz : 1200.000
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 : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic 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 est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dts
bogomips : 4188.93
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 : Intel(R) Core(TM)2 Duo CPU T6500 @ 2.10GHz
stepping : 10
cpu MHz : 1200.000
cache size : 2048 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 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 est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dts
bogomips : 4189.45
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:


I'm not sure what to do .
Is there any generic way we can tackle this issue. I'm ready to invest some time on this. If some one can guide me I can try to figure it out.

[scorpio2002]

I an unlucky onwer of a Toshiba laptop (U500-10V). I've always had overheating issues since I bought it. I have recently found out that this is due to a buggy Windows-specific BIOS table that they install on their laptops.

I don't know if that is your specific problem, but it is clear to me that Toshiba wants to prevent Linux users from using their laptops.

I'm currently looking for a new laptop because I'm fed up with Toshiba!

[agnibhu]

Hi,

I wonder why nobody seems to be care about these issues. What is the need of releasing new versions of ubuntu without solving these basic needs. I'm myself a software engineer. I can try to solve this issue if some one guides me.

Actually I like Ubuntu very much, thats why I stick to this even after this heating problem persists. But we solve it right ?

I think we should focus more about these issues than making the ubuntu more fancier or some thing like that.

[rvchari]

Hi,

I wonder why nobody seems to be care about these issues. What is the need of releasing new versions of ubuntu without solving these basic needs. I'm myself a software engineer. I can try to solve this issue if some one guides me.

Actually I like Ubuntu very much, thats why I stick to this even after this heating problem persists. But we solve it right ?

I think we should focus more about these issues than making the ubuntu more fancier or some thing like that.

some processes in ubuntu seem to be behaving like a runnaway processes... my laptop heats up whenever i run some specific process.
one of them is as simple as gnome appearance that has to be always tracked by pid using top or conky (i use conky exclusively for this !) and then kill the runnaway pid (one pid is used by gnome appearance and another is paralelly created with pid number as (pid)+1. i have to kill the +1 process to bring the laptop temp back to normal.

another one is when i use clamtk to scan my pendrive or something like that...

does ubuntu forum staff notice these things ? or is it a bug only i am facing ?

i am using t500 lenovo laptop and i havent had these issues since i started using it exhaustively... but such bugs started since past few months.... which i keep track and kill the process to control the temp in normal.

abnormality is so high that a laptop running at 40 to 45 deg C shoots up beyond 80 in just a few seconds !!! i have to be really fast to kill the process to protect my laptop !
the instant i do my bit, temp is brought in control in another few seconds !

[agnibhu]

thanks rvchari for a quick response.
But I couldn't understand the 'top technique'. I've pasted the output of the top command on my machine. Can you figure out anything reasonable ?

Thanks and Regards......


top - 20:39:21 up 12 min, 2 users, load average: 0.05, 0.18, 0.16
Tasks: 175 total, 1 running, 174 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.6%us, 1.6%sy, 0.0%ni, 96.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3060500k total, 896568k used, 2163932k free, 75348k buffers
Swap: 2047996k total, 0k used, 2047996k free, 398120k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1381 root 20 0 73992 30m 12m S 2 1.0 0:21.91 Xorg
2167 deepud 20 0 341m 78m 31m S 1 2.6 0:35.34 firefox-bin
2287 deepud 20 0 93948 13m 10m S 1 0.5 0:01.80 gnome-terminal
2311 deepud 20 0 176m 62m 35m S 1 2.1 0:14.44 software-center
57 root 20 0 0 0 0 S 0 0.0 0:00.40 kondemand/0
1802 deepud 20 0 99740 11m 8592 S 0 0.4 0:00.55 gnome-settings-
1822 deepud 20 0 73456 26m 9732 S 0 0.9 0:05.23 compiz
1889 deepud 20 0 3908 916 732 S 0 0.0 0:00.33 syndaemon
1935 deepud 20 0 76692 12m 9.8m S 0 0.4 0:02.43 sensors-applet
2395 deepud 20 0 2620 1144 840 R 0 0.0 0:00.06 top
1 root 20 0 2888 1708 1244 S 0 0.1 0:00.74 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 0:00.08 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0
6 root RT 0 0 0 0 S 0 0.0 0:00.70 migration/1
7 root 20 0 0 0 0 S 0 0.0 0:00.03 ksoftirqd/1
8 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1
9 root 20 0 0 0 0 S 0 0.0 0:00.07 events/0
10 root 20 0 0 0 0 S 0 0.0 0:00.01 events/1
11 root 20 0 0 0 0 S 0 0.0 0:00.00 cpuset
12 root 20 0 0 0 0 S 0 0.0 0:00.00 khelper
13 root 20 0 0 0 0 S 0 0.0 0:00.00 netns
14 root 20 0 0 0 0 S 0 0.0 0:00.00 async/mgr
15 root 20 0 0 0 0 S 0 0.0 0:00.00 pm
17 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers
18 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default

[rvchari]

thanks rvchari for a quick response.
But I couldn't understand the 'top technique'. I've pasted the output of the top command on my machine. Can you figure out anything reasonable ?

Thanks and Regards......


top - 20:39:21 up 12 min, 2 users, load average: 0.05, 0.18, 0.16
Tasks: 175 total, 1 running, 174 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.6%us, 1.6%sy, 0.0%ni, 96.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3060500k total, 896568k used, 2163932k free, 75348k buffers
Swap: 2047996k total, 0k used, 2047996k free, 398120k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1381 root 20 0 73992 30m 12m S 2 1.0 0:21.91 Xorg
2167 deepud 20 0 341m 78m 31m S 1 2.6 0:35.34 firefox-bin
2287 deepud 20 0 93948 13m 10m S 1 0.5 0:01.80 gnome-terminal
2311 deepud 20 0 176m 62m 35m S 1 2.1 0:14.44 software-center
57 root 20 0 0 0 0 S 0 0.0 0:00.40 kondemand/0
1802 deepud 20 0 99740 11m 8592 S 0 0.4 0:00.55 gnome-settings-
1822 deepud 20 0 73456 26m 9732 S 0 0.9 0:05.23 compiz
1889 deepud 20 0 3908 916 732 S 0 0.0 0:00.33 syndaemon
1935 deepud 20 0 76692 12m 9.8m S 0 0.4 0:02.43 sensors-applet
2395 deepud 20 0 2620 1144 840 R 0 0.0 0:00.06 top
1 root 20 0 2888 1708 1244 S 0 0.1 0:00.74 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 0:00.08 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0
6 root RT 0 0 0 0 S 0 0.0 0:00.70 migration/1
7 root 20 0 0 0 0 S 0 0.0 0:00.03 ksoftirqd/1
8 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1
9 root 20 0 0 0 0 S 0 0.0 0:00.07 events/0
10 root 20 0 0 0 0 S 0 0.0 0:00.01 events/1
11 root 20 0 0 0 0 S 0 0.0 0:00.00 cpuset
12 root 20 0 0 0 0 S 0 0.0 0:00.00 khelper
13 root 20 0 0 0 0 S 0 0.0 0:00.00 netns
14 root 20 0 0 0 0 S 0 0.0 0:00.00 async/mgr
15 root 20 0 0 0 0 S 0 0.0 0:00.00 pm
17 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers
18 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default

in a nut shell, (eventhough i am not a linux guru or for that matter an ubuntu geek) i observed that the top command lists the processes in decending order (highest mem / cpu % usage is listed topmost. i note down the pid and spent some time to read on. notice the sequence. in ur case its Xorg on top listed as of time you copied / pasted.

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1381 root 20 0 73992 30m 12m S 2 1.0 0:21.91 Xorg

i cant decipher whats PR, NI, VIRT, RES, SHR, S
i notice the pid which is 1381, %CPU2, %MEM is 1.0 and name (command) thats Xorg.
you cant do anything to this as this is essential process to run X

in my case whenever the runaway processes occur, it shoots upwards to top place (but natural, user will be me and not root) and % MEM shoots up which inturn burns up the laptop by increasing the temp.

i issue the command "kill PID" without quotes in the terminal where PID is the number (1381 in the above example). once i issue this command... fan comes to normal speed, temp is restored to normalcy and i can work....

the latest bug i found is this.... apt-get command starts whenever it thinks to screw my temp and shoots up... i have to issue "sudo kill PID" in terminal as apt-get isnt controled by user.... why this ? when i never touch that command unless and until i wish to remove or install a package ? or update or upgrade ? funny but this is happening....

still i am happy that ubuntu helps me identify the black sheep and bring things back to normal... (i had been using windows and windows at times used to hang... was this case occuring there too ? i dont know coz i dont have any idea on how to identify ! so i quit using windows and am a happy ubuntuer... since jaunty !)

[rvchari]

i forgot to add that in my case, gnome-appearanc and apt-get are the two black sheep that shoots up the temp beyond 70 and 80 ( in gnome-appearanc case, i dont let it go beyond 50 as i keep the kill command ready ) in apt-get case, i notice only if i track the temp (which is displayed b conky)

[timesarehard4dreamers]

For those with Toshiba laptops, try using toshset commands to enable fan use in Ubuntu.

[Yellow Pasque]

I wonder why nobody seems to be care about these issues.

Ubuntu can't fix mobo/system manufacturers' buggy BIOS implementations. You're better off voicing your need for Linux support to them than Canonical. Or better yet, support Linux vendors like System76.

Side note: I kind of feel guilty about getting an HP laptop, even though they're one of the better manufacturers when it comes to stuff working in Linux. I did get a great deal on it though, and I needed a laptop in a pinch while I was living in my car (LOL @ my priorities).