After replacing kernel parameters as explained in comment #4 quiet splash with acpi=off
from 18Nov2009 2pm IST to now (20Nov2009 10am IST) no hang after sacrificing acpi features. If hangs I will post. I am using Intel D845GERG2 motherboard in the desktop with 1GB RAM in our computer centre where the issue is solved as above. Dear James Cobban can I please know the motherboard chipset you are using. I will try here in one of my students laptop. Have a nice day -- hang in Karmic Koala https://bugs.launchpad.net/bugs/477918 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs