7

Every USB port has stopped working on my laptop running Ubuntu 16.04 LTS. I executed lsusb in terminal and was prompted with the following:

Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I'm not sure what I'm doing. How can I fix this?

David
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Jmeehan
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  • Have a look in the BIOS / set-up, sometimes there is an option to disable USB ports - make sure it's off. – Jonas Czech Sep 13 '16 at 16:11
  • What's the output of lspci -nnk | grep -A2 USB and sudo dmesg | grep -i -e '[uoex]hci' -e usb? See How do I save terminal output to a file? if you don't know how. And could you please [edit] your post, when you want to add information? Especially file or program output listings (with the help of the {} button in the editor toolbar) are much more readable there; alternatively you can use a pastie service for longer listings and include the link of your pastie in your question. – David Foerster Sep 13 '16 at 17:10

2 Answers2

7

Maybe it will help you:
Open terminal, type:

sudo -H gedit /etc/default/grub 

Change the line

GRUB_CMDLINE_LINUX=""

To

GRUB_CMDLINE_LINUX="acpi=force irqpoll"

Save and close the file.

sudo update-grub

Reboot.

Source on ubuntugeek.com

Zanna
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Benny
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0

For GIGABYTE-970A-UD3P I had to do something similar what ozcyto recommended in this thread:

sudo nano /etc/default/grub

Change GRUB_CMDLINE_LINUX line to:

GRUB_CMDLINE_LINUX="iommu=soft"

Then (preferably in a new terminal window) run this:

sudo update-grub

Restart your PC and it should work.

totymedli
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