1. Disabling USB Power Management

Question

27

Two USB ports stopped working

rated 0 times [ 27] [ 0] / answers: 1 / hits: 46855 / 3 Years ago, sun, august 8, 2021, 1:17:21

I have a HP pavillion g6, running Xubuntu 14.04 64-bit. I have 3 USB ports. For some reason, 2 of them stopped working this morning.

I have xserver-xorg-input-all installed, followed the instructions here which didn't work. My laptop is updated and upgraded to the latest version. lsusb outputs

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 004: ID 0a5c:21e3 Broadcom Corp. HP Portable Valentine

Bus 001 Device 005: ID 2188:0ae1  

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 tried on Manjaro live cd, and all ports are working. Isn't there an error log for usb ports so i can see whats going on?

My /var/log/dpkg.log and /var/log/apt/history.log are here

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

armis

Add To Favorites

Follow

Total Points: 38

Total Questions: 106

Total Answers: 118

Location: Mali

Member since Sat, Feb 12, 2022

2 Years ago

armis questions

1 where is the source code for the which command?

Mon, Apr 17, 23, 10:01, 1 Year ago

1 What are phased updates, and why does Ubuntu use them?

Mon, Aug 2, 21, 00:29, 3 Years ago

1 Screenshot selection in 22.04

Wed, Feb 2, 22, 13:46, 2 Years ago

1 sudo apt-get update fails public key is not available: NO_PUBKEY, sudo gpg --keyserver pgpkeys.mit.edu --recv-key also fails

Fri, Mar 31, 23, 01:07, 1 Year ago

1 Black screen after installing Nvidia driver Ubuntu 20.04.02 LTS, RTX 30 series or ubuntu screen stuck at system logo screen

Fri, May 21, 21, 00:37, 3 Years ago

View All

answered 3 Years ago ainbby · Accepted Answer

Here I got my USB3 ports not working after a while: only a restart fixes the problem.

After some research, I've found that a lot of USB3 ports presents a power management problem In a lot of different hardwares and OSs. You can find people reporting this kind of problem on Windows, Linux, etc.

So, I've disabled USB power management, and now everything is fine.

1. Disabling USB Power Management

For Ubuntu, usbcore module is compiled in the kernel, so we need to change the kernel boot parameters.

Edit the /etc/default/grub file and change the GRUB_CMDLINE_LINUX_DEFAULT line to add the usbcore.autosuspend=-1 option:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"

Note that quit splash were options already present. So keep other options you have too.

Save file and close.

2. Update grub

After save the file, update grub:

sudo update-grub

And reboot.

3. Check autosuspend after reboot

After reboot, check autosuspend value:

cat /sys/module/usbcore/parameters/autosuspend

And it should display -1.