USB is an acronym for Universal Serial Bus. The current USB standard is USB 3.0, which supports transfer speeds of up to 625MB/s. USB devices are plug-and-play.

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+50

How to leave a usb port powered during shutdown for charging mobile?

My Sony VAIO Laptop has a feature which will allow me to keep one USB port powered even when my laptop is shut down. It is given in the manual here. It can be switched on or off from the Vaio software ...
6
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360 views

Ubuntu-touch reverse USB tethering

I'm trying to get internet from my Nexus 4 ubuntu-touch through the usb as described here: https://wiki.archlinux.org/index.php/Android_Tethering (this is for Android) What I cannot accomplish is to ...
4
votes
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530 views

Fujitsu S1300i advances document but doesn't scan

I'm using a Fujitsu ScanSnap S1300i. Using sudo as a temporary workaround to minimise any permissions problems: $ sudo sane-find-scanner found USB scanner (vendor=0x04c5 [FUJITSU], product=0x128d ...
4
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568 views

Conexant Modem running under Ubuntu 12.04 LTS

I've bought a USB 56k Dailup-Modem for using HylaFax later on. The Modem gets recognized by the system via lsusb as follows: Bus 006 Device 002: ID 0572:1329 Conexant Systems (Rockwell), Inc. But ...
3
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27 views

Lenovo T440p Docking Station USB only works half the time

I've recently bought a Lenovo T440p and have realized that usb devices connected via its docking station do not connect if I boot the computer while it's plugged into it. When I boot the laptop when ...
3
votes
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1k views

USB hard drive not showing up under /dev/

I'm running Ubuntu 14.01 on a BeagleBone Black with LXDE. I have a USB hard drive that auto mounts (a prompt comes up in LXDE and I have to enter my password) if I connect it after the computer have ...
3
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0answers
488 views

14.04 - USB microphone speaker device not working anymore

I own a PJP-20UR web conference microphone speaker, I have been using this USB device for ages with Linux, Windows, Mac never ever have had any issues with it. Since I upgraded from Ubuntu ...
3
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1k views

External PCIe USB 3.0 Controller NEC Corporation uPD720200 not recocnized since the upgrade to 14.04

I use an external USB 3.0 PCIe card. It used to work like a charm on 13.10. But ever since the upgrade to 14.04 hot-plug doesn't seem to work any more. It used to work before. Only when this card is ...
3
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2k views

What is the state of the Ubuntu USB 3.0 driver

I have a device, that over USB 3.0 enumerates as a speaker and a microphone (two interfaces, each with a single endpoint) under Windows 7. However, under Ubuntu 13.04, only the speaker shows up. How ...
3
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576 views

xubuntu 13.10: automount usb sticks

I have a freshly installed Xubuntu 13.10 on the Lenovo T520 laptop. In the Settings Manager — Removable Drives and Media I have the Mount removable drives when hot-plugged and Mount removable media ...
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3k views

USB 2.0 port does not work, USB 3.0 ports do work, running Ubuntu 13.04

I have 3 USB3.0 ports and 1 USB2.0 port on my Laptop (w230st clevo). Unfortunately,the USB2.0 port does not work, despite being shown on lookup with lsusb, output shown below. Strange is, that lsusb ...
3
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222 views

Why does an external USB hub show up under different USB bus/port numbers than other devices plugged into the same port?

I'm working on setting up a system where I want to have certain devices always named the same way when they are plugged into certain ports. I originally set up a udev rules file with the devices ...
3
votes
0answers
272 views

Installing Fritz Wireless USB Adapter

How do I install a Fritz USB wireless adapter on Ubuntu so I can access the internet? I have the software required, but I am not sure what to do next. Ubuntu version 13.04. Output of lsusb: ...
3
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696 views

wifi usb dongle detected but no wlan interface

I'm using ubuntu 12.04. When I insert my philips PTA01 usb wifi dongle, in dmesg i can see: [ 1181.535290] usb 2-3: new high-speed USB device number 4 using ehci_hcd [ 1181.684074] usb 2-3: New USB ...
3
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2k views

USB pen drive is detected in Windows but not in Ubuntu

My Sony pen drive gets detected in windows but I cannot find it on my Ubuntu. I formatted the drive with FAT,FAT32 and NTFS but the same problem. I went through FAQs but did not find anything helpful. ...
3
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69 views

cherry st1044 not recognized in ubuntu 12.10

I cannot get Ubuntu 12.10 to recognize my Cherry ST1044 smart terminal reader. The terminal shows the PCSC software is installed but "no service" is also displayed in the terminal.
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2k views

Getting DVI to work through Lenovo USB Port Replicator in 12.10: Instability and getting it to use xorg.conf file

Setup: Computer is a Lenovo Thinkpad SL500 using the USB Port Replicator running LiveCD for Ubuntu 12.10. Computer has USB attachment to port replicator. Port replicator has DVI to HDMI convertor ...
3
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408 views

USB2VGA device not listed as output device

When I type xrandr the usb2vga device "Magic Control Technology Corp. (USB2VGA dongle)" does not show up. A reboot with the device plugged in doesn't change it. The kernel.log shows that it has been ...
3
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0answers
622 views

Unable to connect to the MTS Mblaze usb

PCEH25EN:~$ sudo apt-get install wvdial E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is ...
3
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486 views

How do I share USB VFAT Drive with other users?

I want to share pictures between my wife and me, on an external USB drive. The OS is ubuntu 12.04. The drive is a Western Digital 500 GB and sudo blkid /dev/sdc1 return LABEL="My Book" ...
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384 views

How can I make my ubuntu 12.04 act like an external usb hard drive?

Quick breakdown, I have a Roku 2 XS that has a USB port that you can connect a flash drive or external hard drive to. I also have a box running Ubuntu that is the household media storage center. I ...
3
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974 views

ubuntu 12.04 stopped showing every usb devices

Ubuntu was running perfectly, suddenly my internal HDD partitions (except file system) and partitions of external HDD disappeared. I was able to mount the partitions of internal HDD via disk utility, ...
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13 views

USB device is not recognized on HP laptop with Ubuntu 14.04

I am trying to connect a USB braille cell device to my HP Folio 9470m laptop running Ubuntu 14.04.2 (amd64), but it fails with the following errors (from dmesg): [ 1689.038374] usb 3-2: new ...
2
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29 views

I am not able to install ubuntu using usb?

I downloaded ubuntu 12.04.5 LTS iso file from torrent( size 700+ MB)and copied it in the usb. Then I made my usb drive bootable by running command line instructions (since my GUI is not working) from ...
2
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9 views

custom rule to force FDTI Quad UART FT232r output on specific name

I would like the 4 UARTS that show to be on a name other than /ttyUSB0 because i have many devices that end up on /ttyUSB* I have written a rule which can create a symlink or new name based on the ...
2
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21 views

Prevent usb HDD Sleep mode?

I'm having a problem with my computer running Ubuntu server 12.04, I have an external USB HDD plugged in for samba file sharing but after a few hours not using samba the USB HDD goes to sleep. When I ...
2
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88 views

Live USB doesn't start - GNU GRUB version 2.02

When starting my laptop, the first and only screen I see is "GNU GRUB Version 2.02~ beta 2-9 Minimal BASH-like line ...". I can't access to BIOS, nor use a bootable usb flash drive. It doesn't read ...
2
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28 views

mute/unmute usb headphone with a Mic

I have a logitech h340 (usb headphones) with no mute/unmute button. I was wondering if there was a command line method to mute and unmute / toggle the Mic on my headphone. I tried: amixer set Capture ...
2
votes
0answers
23 views

USB stick breaks the network access

Recently I've got a brand new Sandisk Extreme usb stick. It contains a NTFS file system and a encrypted NTFS folder that I can read/write on a Windows machine without issues. But when I plug it into ...
2
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0answers
33 views

How to allow software access to any USB devices?

I have a libusb-based program that can't open USB devices on a freshly installed Ubuntu because it lacks permissions. This solution will probably work for me, but it requires manually specifying ...
2
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0answers
71 views

How does Ubuntu detect a smartphone without any drivers?

The smartphone in this context is a Samsung Galaxy S i9000. Before when I've tried to transfer files to and from a computer running windows I've always needed drivers for the smartphone to be ...
2
votes
0answers
300 views

How to avoid “hub_port_status failed”error messages?

On startup and on closing Ubuntu (14.04 LTS) displays many lines like [ 14.212517] hub 1-8:1.0: hub_port_status failed (err = -71) Then the computer seems to work ok, although there seems to be ...
2
votes
0answers
3k views

Installing Ubuntu on early 2011 Macbook pro using USB Stick: ''i8042 No Controller''

I have an early 2011 macbook pro. My primary hard drive location has a mac os X yosemite installation. I replaced the optical drive with a secondary hard drive, which has two partitions created with ...
2
votes
0answers
204 views

Can't get wireless dongle DWA 131 to work on Ubuntu 14.04

I recently got a D-link DWA-131 wireless usb dongle to work on my desktop PC. I was in quite a hurry when I chose it, but considering the abundant documentation on how to successfully get it to work ...
2
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0answers
47 views

Double entries for android device in “Available Devices” (Kubuntu 14.10)

I'm running Kubuntu 14.10 and trying to make an MTP connection (over a USB cable) to an LGP705 Android phone. At one time I had the connection working, but no longer. The problem I now have is that ...
2
votes
0answers
37 views

No usb or Ethernet after installation

I'm writing this using mobile phone. I installed Ubuntu latest, but only usb 3.0 ports are working, Ethernet and usb 2.0 seems to be recognized but not functioning, and this also happened on Fedora ...
2
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0answers
31 views

How Do I move an Ubuntu GNOME OS from a USB to an HDD?

I Have Ubuntu GNOME installed on a 32GB SanDisk USB. I am looking at bringing my OS over to an HDD. Not duplicate of How to move 12.04 from USB to HDD? This is my file system: How do I bring ...
2
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0answers
341 views

Xubuntu 14.04 Automount ext4 USB Stick as root

I recently formatted my new Sandisk USB Stick with linux from the default FAT32 to ext4. Unfortunatelly, when Thunar Automounts the stick, it is mounted as root and not as the current user, so if I ...
2
votes
0answers
159 views

Unable to use webcams

I have 3 webcams attached to my laptop for a c++/opencv project and my program crashed. Now it keeps giving warnings that "device or resource busy". I suspect this is a OS level error. Is there any ...
2
votes
0answers
176 views

How to distinguish between identical USB's

I have this system where I have 8 USB RFID readers which I would like to distinguish from one another. Here's a snippet from lsusb Bus 002 Device 011: ID 05fe:1010 Chic Technology Corp. Optical ...
2
votes
0answers
204 views

Possible to “electronically disconnect” the fingerprint sensor on my laptop? // X41 Thinkpad

I'd like to fully disable the fingerprint sensor on my IBM X41 Thinkpad. The first place to look which comes to mind is BIOS (version 2.09, 74ET64WW): I just checked again: as far as I can tell there ...
2
votes
0answers
166 views

Building NAS Server and Need Guidance

I'm building a NAS and using Ubuntu as the OS. I have a few questions and need some guidance on what direction to take. I know I am asking many questions, if you can only answer one of them please ...
2
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0answers
285 views

Wired USB Ethernet Connection disconnecting sporadicly

first, I'm not a Linux Pro, so please forgive me if I write any nonsence :) So I have quite an unusual constellation. I'm running a Ubuntu 14.04 Virtual Machine on my Mac Pro using VMWare Fusion 6. ...
2
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2k views

Ubuntu 14.04 installation crashes with “???” message after selecting drive

The Gist: I have been trying to erase my disk and install Ubuntu 14.04 LTS on my laptop as my sole operating system. I can boot "Try Ubuntu" or "Install Ubuntu" from a USB stick. During the graphical ...
2
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0answers
728 views

Mount usb to serial adapter CANBUS and can-utils ubuntu?

I have this adapter and I'm trying desperately to mount in in Ubuntu so I can use can-utils to monitor the device but I'm failing. I'm trying to communicate with a serial to can-bus adapter in 14.04 ...
2
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0answers
160 views

How can I configure my USB sound card with KDE tools?

I have a USB soundcard which is detected by the system (as output in /proc/asound/cards and by lsusb). However, it is not selectable in KDE settings. It shows up in the list of sound cards, but is ...
2
votes
0answers
147 views

USB Keyboard/Mouse, Networking broken by kernel update

I recently (automatically) updated all the kernel-related packages (linux-image, linux-headers etc) to version 3.13.0-27.50. I'm using the generic kernel for AMD64. After reboot I find that my USB ...
2
votes
0answers
223 views

Getting two USB devices to run on different buses

My objective is to get two webcams streaming simultaneously on my computer. Because of bandwidth limitations of the uvcvideo driver (or see bottom of UVC faq), I need the two webcams to be on ...
2
votes
0answers
199 views

Assigning ehci-pci to an Epson V33 scanner instead of xhci_hcd

I have recently installed Xubuntu 14.04 on two computers. Computer A is a DELL Aptitude E5430 laptop, whereas Computer B is a home-mounted desktop, with an ASUS H87-Plus motherboard. I have been ...
2
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0answers
228 views

Kingston Datatraveler won't mount in ubuntu 14.04

I try and try and try but ubuntu 14.04 is not recognizing my flash drive. It's a Kingston Datatraveler which has never caused me any problems before until now. Anybody know what to do?