[Bug 29368] Re: gdm locks up system in few seconds after load

[cruiseoveride]

I dont have the G5 anymore, but i remember that even if i booted the machine to  init 3, and worked on the console, the machine would hang up, after a few mins. If you hold down a few keys together the machine freezes, if you type too fast the machine freezes, but on the native keyboard only. 
If u ssh into the machine, u can work on it forever without any issues.
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gdm locks up system in few seconds after load
https://launchpad.net/malone/bugs/29368