Hey Andy sounds like you have a heap of fail on your hands.   I have
had a patch for a few weeks now.  Ubuntu's fan speed is too slow, and
this is the cause of 99% of the 100 posts on this thread. You probalby
can't reproduce the issue because your laptops are not powerful
enough.  I can't even run VMWare on my intel dual 2.4ghz dell for more
than 20 min without speeding up the fan.   For me its not a matter of
reproducing this,  it is a huge barrier that i faced every day until I
fixed it.   People are really pissed off,  and i was one of them.

peace

On Thu, Jul 9, 2009 at 2:28 AM, Andy Whitcroft<a...@canonical.com> wrote:
> @Michael -- there are many bugs reported against the kernel.  This one
> came to our attention as there were a number of duplicates which raises
> its profile and its priority for attention.  I actually said that I had
> tested it on all the kit I had here and had not been able to reproduce
> it.  That included on two laptops neither of which show the issue.  This
> is not an issue affecting every laptop therefore not trivial to isolate.
> We have now since found one person who has a reproducible trigger for
> what appears to be this behaviour and they are attempting to bisect the
> kernel to find the cause.  The problem is looking like it is in mainline
> also, and likely was introduced in the 2.6.28 release, and so you may
> well hit the issue in any distro.
>
> For those of you who have experienced thermal shutdowns could we get your 
> acpidump and dmidecode output attached to this bug, run the two commands 
> below and attach the result to this bug:
>    sudo acpidump -o acpidump.txt
>    sudo dmidecode >dmidecode.txt
>
> For those of you comfortable testing kernels we currently suspect the
> problem was introduced in v2.6.28 mainline, you might test the v2.6.27
> and v2.6.28 kernels from the Mainline Kernel repository to confirm it is
> not present in v2.6.27 and is in v2.6.28. Those kernel can be found
> here:
>
>    http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.27/
>    http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.28/
>
> and instructions found here:
>
>    https://wiki.ubuntu.com/KernelTeam/MainlineBuilds
>
> If the problem is found to be in v2.6.28 and not in v2.6.27 then it
> would also be worth testing the following stable updates kernels also:
>
>    http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.27.23/
>    http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.27.12/
>
> In all cases please report your testing results back here.  Thanks.
>
> --
> Ubuntu 9.04 laptop overheat and shutdown
> https://bugs.launchpad.net/bugs/370173
> You received this bug notification because you are a direct subscriber
> of a duplicate bug.
>
> Status in “linux” package in Ubuntu: In Progress
>
> Bug description:
> Ubuntu 9.04, fresh install on Acer Aspire 5005.
> Not sure about package, but it seems the problem is with CPU frequency 
> adjustment or fan control.
> Laptop shuts down right in the middle of CPU-greedy operation overheated. I 
> haven't seen it before (since 7.10).
> The issue is discussed at several forums (eg. 
> http://ubuntuforums.org/showthread.php?t=1130450)
>
> ----
>     *-cpu
>          product: AMD Turion(tm) 64 Mobile Technology ML-37
>          vendor: Advanced Micro Devices [AMD]
>          physical id: 1
>          bus info: c...@0
>          version: 15.4.2
>          size: 2GHz
>          capacity: 2GHz
>          width: 64 bits
>          capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 
> apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx 
> mmxext fxsr_opt x86-64 3dnowext 3dnow up pni lahf_lm cpufreq
>

-- 
Ubuntu 9.04 laptop overheat and shutdown
https://bugs.launchpad.net/bugs/370173
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

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