Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I recently got one Gigabyte gaming PC. It has high end AMD 8 core processor on Gigabyte-990XA-UD3 Ver 3.0 Motherboard. Unfortunately installation of Linux failed to start the ethernet(wired and wireless). I would like to know if someone has experienced anything similar (may be on some other Gigabyte AMD board) and can provide me directions on how to fix it? Currently board boots with Ubuntu 12.04LTS, but it does not have ethernet (Both wired, and add-on card for Wifi do not gets enabled).

PS : Please redirect if this is not the correct forum for it!


share|improve this question
post result of lspci and sudo lshw -c network – Web-E Jan 5 '13 at 19:01
possible fix for nic:… Old but might be worth a try. – Rinzwind Jan 5 '13 at 19:09
@web-E, I am unable to transfer anything from the board. now only is Ethernet not working, so is usb. lspci showed AMD family 15th processor, lshw showed RTL8111/8168B PCI Express gigabit eth controller and AR9300 wireless LAN adaptor(Atheros) – Sandeep Jan 6 '13 at 6:49

Go into the BIOS and turn 'IOMMU' to "enabled" F10 to save/exit/reboot. I had the same problem, this is what fixed it- credit to the webs (search "IOMMU Ubuntu LAN" or something similar to view others' experiences).


share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.