[CentOS] The system is pseudo dead when hang-up system in the centos 5.3 .

[fred smith]

On Fri, Aug 20, 2010 at 08:55:56PM +0800, ganu MailList wrote:
> When I hang-up the system,  then the screem is black.  But the power light
> is brightness.   and the disk light is bright sometimes.
> 
> When I press any key,  the screem is still black.    Only can do is to press
> down power button for several seconds to power off the notebook.   Is there
> the bug of the Centos?

Hard to say. Next time it happens you could try one or more of these steps:
--press CTRL-ALT-BACKSPACE and see if you get back to the GUI login screen.
  if that doesn't work, you could try:
--CTRL-ALT-F1 (or F2 or F3) which (if the machine isn't totally dead)
  should take you to a text mode login screen. if so, you could log in
  from there and do "shutdown -r now" to reboot the system.
--if it is on a LAN and you have another working computer, you could try
  using SSH to log into it and if successful restart as in the item above.
--there are also various recipes for doing a relatively clean shutdown of
  a non-responsive system involving the "magic sysreq" key. I don't happen
  to have the details handy, but some googling for that phrase will surely
  turn up many of them.

Good luck!
-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us ----------------------------
                    Do you not know? Have you not heard? 
    The LORD is the everlasting God, the Creator of the ends of the earth. 
  He will not grow tired or weary, and his understanding no one can fathom.
----------------------------- Isaiah 40:28 (niv) -----------------------------