Gigabyte 970a-d3p after installing Ubuntu USB2.0 can't be used

A PC has just been installed as Ubuntu, using the ISO is UBUNTUKYLIN-15.10-ENHANCED-RELEASE-AMD64. After the installation of the system, USB2.0 interface plug-in mouse keyboard can not be used, inserted in the usb3.0. Search the Internet, adjust the IOMMU option or change the configuration file.

The following is the open IOMMU option to resolve the problem that USB2.0 cannot use

Introduction to the motherboard manual:

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Once this is turned on, the USB2.0 can be used.

The method of modifying the configuration file is not tried, the following is the method of copying from the Internet:

Edit/etc/default/grub Add parameters in Grub_cmdline_linux_default

For example grub_cmdline_linux_default= "Ro quiet splash vt.handoff=7 iommu=soft"

Execute sudo update-grub after saving

Iommu Description: http://mb.yesky.com/312/30171812_2.shtml

This article is from the blog "Write to Yourself", so be sure to keep this source http://zhaodongwei.blog.51cto.com/4233742/1768130

Gigabyte 970a-d3p after installing Ubuntu USB2.0 can't be used