I have a relatively ancient P75 that I'm running as a gateway machine. When running with Linux (either SuSE 6.2 or Redhat 6.1, I've tried both) the machine goes into a sleep mode from which it will not awake. It does several hours for this lockup to occur although the screen will blank out in a few minutes. I first thought it might be the Automatic Power Management function (apmd) under Linux but I disabled that in the startup and later read that apm doesn't have anything to do with 'green' screens or putting your machine into sleep mode. This seems to occur regardless of the power management settings in the BIOS. It occurs whether or not X is running. The machine doesn't suffer from the same fate when running under Windoze or DOS. /var/log/messages doesn't seem to contain what I would consider to be an error or telltale evidence of anything strange occuring on the machine. Has anyone ever seen this problem before? Any ideas on where I should starting looking to attack this problem? Something in the kernel perhaps? Could a piece of hardware cause this? Any ideas are appreciated. regs, -jrp <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HEAD> <META content="text/html; charset=iso-8859-1" http-equiv=Content-Type> <META content="MSHTML 5.00.2722.2800" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial>I have a relatively ancient P75 that I'm running as a gateway machine. When running with Linux (either SuSE 6.2 or Redhat 6.1, I've tried both) the machine goes into a sleep mode from which it will not awake. It does several hours for this lockup to occur although the screen will blank out in a few minutes. I first thought it might be the Automatic Power Management function (apmd) under Linux but I disabled that in the startup and later read that apm doesn't have anything to do with 'green' screens or putting your machine into sleep mode. This seems to occur regardless of the power management settings in the BIOS. It occurs whether or not X is running. The machine doesn't suffer from the same fate when running under Windoze or DOS. /var/log/messages doesn't seem to contain what I would consider to be an error or telltale evidence of anything strange occuring on the machine.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial>Has anyone ever seen this problem before? Any ideas on where I should starting looking to attack this problem? Something in the kernel perhaps? Could a piece of hardware cause this? Any ideas are appreciated.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial>regs,</FONT></DIV> <DIV><FONT face=Arial>-jrp</FONT></DIV></BODY>