> From the past couple of days, it has developed a strange problem. > After running for around half an hour to about 45 mins, it suddenly > becomes non-responsive. Nothing works, even the mouse pointer doesn't > move a bit. The only thing that happens is that the Caps Lock and > Scroll Lock keys start blinking.
Classic indicator that your kernel crashed (kernel panic). Look at the logs in /var/log to identify what was the reason. > The only resort then for me is to hold down the power key to switch it > off. It then fails to start if I try to switch it on again. If I leave > it for about an hour, I am able to boot it again but again after about > 45 mins of usage, the same thing happens. Possibly heating as indicated by Nilesh already. See if your fan is working. Within /proc/acpi/thermal_zone , you should be able to see the temperature of the CPU (use cat temperature). A cleaning might be in order. Sharad -- Mailing list guidelines and other related articles: http://lug-iitd.org/Footer
