disk controller problem?

[Tony Alfrey]

Hi list;

OK, still trying to first diagnose my mysterious disk controller (?) 
problem.
Here is the behavior.
a)  Leave the computer with idle applications (text editor, console, 
konqueror) on the screen and leave it overnight.
b) Come back in the morning.  Screensaver is running.
c) Move the mouse and a 'broken' desktop appears, mostly just a blank 
screen, and the computer (mouse, keyboard) is frozen.
d) Press the 'reset' button to reboot (but leave the computer power on).
e) On reboot, one or more SCSI disks are not recognized.  That is, the 
SCSI ID that is jumper selected on the drive is not seen at all, as if 
the device were not even plugged into the SCSI cable. Additionally, 
even if a bootable drive is actually recognized, the mbr seems to be 
unreadable.
f) Ctrl-Alt-Del yields the same results.
g)  Finally, a full power off reboot fixes the problem.

BTW, early in the morning before I check the computer, the cron 
processes usually run so at least the mounted drive gets scanned at 
that time.

-- 
Tony Alfrey
tonyalfrey at earthlink.net
"I'd Rather Be Sailing"