[ltp] Re: T60p random hangs (ACPI?)

[Richard Neill]

Rolf Kutz wrote:
> On 26/01/09 22:03 +0000, Richard Neill wrote:
>> Has anyone seen weird symptoms similar to the following:
>>
>> My T60p generally works fine, but after a few hours of use (usually 
>> between 10-30 of uptime), it locks hard, requiring a power-off-reset.
> 
> Sounds like a bad soldering joint or fissure of
> the mainboard or other system part. When the
> System get's warm the mainboard expands and the
> connection get cut.
> 

That was my starting hypothesis too. But I'd expect it to be triggered 
in that case by running burnP6, and it isn't.

>> After the reset, I can get to grub just fine, but the system immediately
>> hangs (black screen, no activity) at the instant that grub exits. 
>> Memtest will run just fine though, as will Linux but ONLY if I add the 
>> acpi=off parameter.
>>
>> Alternatively, allowing the system to "rest" (with or without AC 
>> charging) for an hour will make it happy again, and it then boots OK.
> 
> When it becomes colder, the connection is
> "repaired" until it get's warm again.
> 
>> There doesn't seem to be anything I can do to end the sulk, other than 
>> wait (pulling the battery doesn't help). The machine doesn't seem to 
>> be significantly warm anywhere.
> 
> It doesn't have to be extra hot, just enough to
> break the connection.
> 
> If you're still on warranty contact your service
> center.

Do you know whether the warranty is likely to be 1 year or 3?
If 3, I still have a chance, and that may in fact be the best bet.

Richard



> 
> regards, Rolf