Home / ubuntu / Questions / 29254
In Process
albert green
Asked: 2011-03-07 06:07:58 +0800 CST

Ubuntu 10.10 freezes

  • 772

I have the following configuration:

  • CPU: amd athlon 64bit
  • Motherboard: Phoenix with awardBIOS v6.0 APIC mode = disabled
  • Video card: GeForce 5500
  • Sound card: soundblaster live 24bit
  • RAM: 1.5GB

Partitions:

  • ext3 32GB where I installed Ubuntu.
  • Swap 500MB.
  • 180GB Fat32 unmounted. contains data only.

I installed Ubuntu 10.10 and used the "Additional driver" program to get the nVidia proprietary drivers.

The system works for sometime and randomly freezes. The mouse and keyboard are not responding and I am not able to do a SSH. The only solution is pressing the power button.

I tried Kubuntu 10.10 and 32/64-bits versions as well.

There is nothing in the logs to suggest what the reason might be.

Any help will be appreciated. Thanks in advance.

here are the logs:

10.10

1 Answers

  1. After I tried many things I finally think that I discovered the problem. Actually in the logs I noticed the following lines. 

    Mar  6 23:31:11 ubuntu kernel: [  148.400120] Marking TSC unstable due to cpufreq changes
Mar  6 23:31:11 ubuntu kernel: [  148.400194] Switching to clocksource acpi_pm

    Since I have an old motherboard with an old bios, I though maybe the power management was not working correctly. I deactivated everything related to that in my bios, and found this :

    http://ubuntuforums.org/showthread.php?t=211138

    so I added the acpi=off when booting from the liveCD in order to be able to complete the installation. It worked. Then I added acpi=off in grub. I used a Kubuntu 10.10 installation, and Kubuntu doesn't have a rc.conf, so setting this value is done like this:

    edit the /etc/default/grub file and add acpi=off like this:

    GRUB_CMDLINE_LINUX_DEFAULT="**acpi=off** quiet splash"

    Must be edited as root.

    Then run:

    sudo update-grub

    Then reboot.

    At the moment of this writing, the system has an uptime of 15 hourrs without freezing. I run stress tests, videos, audios and everything looks fine.

    The logs do not contain the strings like before.

    • 3