On a potato box, P133, with a sound blaster 16 sound card, I can get a hard lockup on the box, requiring a hard reset.
If I logout to kdm, do a shutdown - reboot, the system goes down normally. Then reboots to kdm, I select my account and log in. The splash does its thing, gets to peripheral init, then locks hard. If I come from a hard reset, or login from another account, no problem. I did a login, then switched to another console and ran top. As it updated, it ran artsd then locked. I think the sound card is not reset, and locks on initialization. Any ideas? Who should I log this bug to? Derek