[Bug 43732] Re: System freezes randomly from Dapper live install and dist-upgrade unless booted with "acpi=off"

[JR Ferrer Paris]

Hi, I recently upgraded from Breezy to Dapper on my Sony PCG-Z1VA and I have the same problem, my system freezes apparently with no specific pattern; my first guess was a problem with the network connection, but it also froze once when I was not connected. I have been looking all log files, but I can not find any specific message from the moment of freezing, it all just seems  fine and then stops logging...
Any suggestions?

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System freezes randomly from Dapper live install and dist-upgrade unless booted with "acpi=off"
https://launchpad.net/bugs/43732