[ltp] T60 lockups (ACPI?)

[Richard Neill]

Dear All,

I wonder whether anyone has seen the following weird symptoms before:

The machine is a T60p, which has been running Ubuntu Feisty fairly 
reliably for 6 months. (I'm using the VESA driver, so no weird 
proprietary things either)

A few months ago, I experienced several complete lockups of the machine, 
which were really weird - it wouldn't boot much past grub - it hangs at 
the first mention of ACPI. Memtest ran fine, and XP would also not 
start. I found that booting with
   acpi=off noapic nolapic
would make the machine come up reliably (though without any 
power-management).  Sometimes, the trackpoint would be dead, and 
sometimes I get the message "ata1: port is slow to respond" during boot.

This problem went away, and all worked fine for a while, but now it's 
back. The machine crashed hard a few minutes ago for no particularly 
good reason (I wasn't even doing anything strenuous, just moving a few 
files around in bash). I had to do a hard-reset, and I have had to make 
multiple attempts at booting to get it to come up. The "noacpi noapic 
nolapic" trick worked again.

Any thoughts? Do I have dodgy hardware?

Thanks,

Richard