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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Epson perfection 1670 dont work

I have problem with our scanner, Epson Perfection 1670. On Ubuntu didnt work, when I changed to Kubuntu 14.04 it worked for one day, but after shutdown and few days of rest, it stopped to work... ...
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44 views

Humanity icon instead of Symbolic for USB devices in Nautilus sidebar, Ubuntu 14.04.1

I have Ubuntu 14.04.1 installed. USB devices in Nautilus sidebar are shown in "color", as it was before in 12.04. Screenshot (USB is called TV SHOWS): I think the needed icon is located there: ...
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21 views

USB Stick Write Problems

Ubuntu 14.04 with software up-to-date as of 25 Sep, 2014, System 76 Gazelle Professional laptop, model gazp8, SanDisk Cruzer U 16GB thumb drive. For the past two weeks I have had significant ...
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61 views

Network, usb and unity not working after upgrade to 14.04

I had a dual boot with Ubuntu 12.04 and Windows 7. My update manager started to do weird things a while ago. It didn't get any new updates and it crashed a thousand times when I clicked on "upgrade ...
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54 views

How do I select network mode in Reliance 3g USB dongle

After googling on internet, I didn't find drivers for my zte modem. In my area 3G coverage is low and I am unable to change from 3G to 2G network, neither manufacturer provides it's drivers for ...
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129 views

To Share on samba a External USB Hard Drive on Ubuntu 14.04

I have been looking for one month now and cant find any answers to sharing a external hard drive usb with samba using Ubuntu 14.04, I have read a lot of forums and accessed advice. I always get the ...
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353 views

mounting galaxy s4 ubuntu 14.04

I know this has topic has been touched on a lot, and I have tried just about anything I have read and still have no solution. Be aware, still relatively a noob with linux. The problem is as simple as ...
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111 views

Cannot Find Content in Samsung GT-N8000 (Note 10.1 Kitkat) Connected to Ubuntu 12.04 LTS (Dell)

I am a beginner-level Ubuntu user. My Samsung Note tablet (specs given in Title) connected without issues and showed as an external USB device on the dashbar at first. After a few days, and a lot of ...
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16 views

Why does Ubuntu write to disk when copying files from CD to USB?

My machine has 18GB of main memory. When copying files from a mounted CD to a mounted USB drive there is a lot of HDD activity. Why does Ubuntu write to disk when copying from CD to USB? I assume ...
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278 views

Ubuntu 14.04 doesn't see kindle fire as as mtp device

When I connect my kindle fire to my Ubuntu 14.04 desktop with a micro usb cable, nothing happens. When I check my syslog I get this. tail -f /var/log/syslog Sep 5 16:26:22 ubuntu kernel: ...
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39 views

Can't boot various Macs from USB, “malformed file” error

I have been given a USB by my university with a bootable version of Ubuntu (I am unsure what version) pre-loaded with a bunch of software I need for robotics. Several computers successfully booted ...
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130 views

Lenovo G510 Bluetooth and Usb doesn't work properly

I installed Ubuntu 14.0.1 on My laptop Lenovo G510. Processor 4x Intel(R) Core(TM) i5-4200M CPU @ 2.50GHz Memory 8091MB (797MB used) Operating System Ubuntu 14.04.1 LTS Kernel Linux ...
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60 views

How to fix: USB mouse settings restored to default on each connection?

I'm connecting and disconnecting USB mouse from the notebook. I've noticed that every time default xinput settings is restored, precisely Device Accel Velocity Scaling (271): 10.000000 which drives me ...
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107 views

Cisco AM10 USB wireless adapter not recognized on Ubuntu 14.04

I recently updated (and also tried a fresh install) of the most recent Ubuntu OS for my Dell Optiplex. My USB adapter worked fine before the update. Now the adapter is not working / recognized. ...
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78 views

Problems with external harddrive (USB 2.0)

I recently installed Ubuntu 14.04. LTS on a Compaq Presario CQ 60. After having a few problems, I managed it to run more or less stable (freaking Nvidia problems are more or less resolved by using ...
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144 views

USB can't read configurations, error -71?

I'm trying to plug a custom development board based on a Beaglebone Black to my Linux PC. The following is the dmesg error I was able to get (running Ubuntu 12.04): [424595.900132] usb 5-2: new ...
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81 views

USB dock for 4TB Seagate HDD only works with less then 2.2TB of data

I have one of those Seagate 4TB HD and everything went fine using GPT, I could use it normally without any problem. I used gparted to format and create the partition table as ext4. Everything changed ...
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165 views

Can not use Wacom Intuos CTL-480 and Touch Tablet on Ubuntu?

I am extremely new to Linux and just recently downloaded Ubuntu to my Chromebook. I really need to install my Wacom Intuos Pen and Touch tablet but the system can not recognize it. I have already ...
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52 views

lsusb failing when I plug in my build light

Just ran into a very strange problem using Ubuntu 14.04. I am running a build light server and the now when I plug in the build light, it flashes every 10 seconds and my program can't access it (hangs ...
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573 views

My USB 3.0 port doesn't work

Something is very wrong with usb support on Ubuntu. So, I have 2 USB 3.0 ports on the motherboard, along with 4 USB 2.0 ports and also 2 USB ports on my front panel. USB 3.0 isn't working and running ...
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87 views

Load .mobileconfig to iPhone from Ubuntu 12.04 LTS

I'm trying to use Ubuntu 12.04 LTS to create and load *.mobileconfig files (normally created with iPhone Configuration Utility) onto an iOS devices via USB cable. I am having 2 problems. I can't ...
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54 views

How to block a virtual part of a USB device with udev?

I've got Microsoft Sculpt Ergonomic Desktop (keyboard+mouse). It's a nice set but it creates problems for me as one of its parts in the system is a virtual joystick js0. I've got an advice to use ...
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57 views

Grub2 cannot see my new external USB hard drive, but sees an older one

I am trying to boot Ubuntu-studio (current version) from a new Seagate 2TB expansion USB drive on an old system (PC) whose BIOS doesn't know how to boot from USB. No problems with either the install ...
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287 views

Setting MediaTek (Ralink) MT7601U USB driver

I have MediaTek (Ralink) MT7601U USB, and with their source, but I am user anyone can help how to run this USB Wifi?
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45 views

Disabling constant RTS and DTR on Serial to usb adapter

I am using a Prolific PL 2303 serial to usb adapter and am using Ubuntu 14.04. The problem I am having is when the USB to serial adapter is connected, RTS and DTR are constantly on. This is a ...
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103 views

Micromax MMX377G G USB Modem not working in UBuntu10.04 and 12.04 32bit

Recently I bought a Micromax MMX377G 3G USB Modem cannot install in Ubuntu10.04 and 12.04 32bit Pls help me
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23 views

can't load a usb key formatted on a windows machine

I'm trying to read files off a usb that was formatted as Fat32 on a windows machine. When I plug it into my usb drive, it says : "Could not mount the following disk: USB DISK". And then in the ...
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38 views

How can I automatically reboot machine after usb pull off?

I have this situation - I've got a boot-able pen-drive with Ubuntu 12.04 for automated installation - when I plug the USB stick in installation begins from it. At the end of installation process I ...
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22 views

Cannot save document to usb

Unable to save any OpenOffice documents to usb. Cannot export any Picasa pictures to external hard-drive either. Message says: Error saving the document..... does not exist. .... is file name
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389 views

What is holding my USB device when I try to use it in VirtualBox?

Ubuntu host, XP guest. When I connect the USB device I want to the virtual machine, I get: Failed to attach the USB device Microchip Technology Inc. PICDEM FS USB Demo Board (C) 2004 to the ...
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2k views

USB Port not working for Ubuntu 14.04 LTS

I have recently installed Ubuntu 14.04 LTS on my system. But the usb port does not seem to be working. When I type lsusb in terminal, following is displayed on the screen: Bus 002 Device 114: ID ...
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129 views

How can I add this USB Printer (`/dev/usb/lp0`) to printer list when print command is given in any application?

I have made a USB thermal printer which generates the /dev/usb/lp0 nod in /dev folder. Printing using echo "Test PrintSlip" /dev/usb/lp0 works fine. I would also want to print from text editors using ...
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92 views

getting rid of dialog box when android phone connected

Since upgrading from 12.04 to 14.04, whenever I connect my Android Galaxy SII to my laptop via USB to charge, I get a dialog box that says Unable to mount SAMSUNG Android Unable to open MTP ...
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161 views

USB recognized, but not usable

I booted my computer today and I don't know what happened, but all my USB devices aren't working anymore (webcam, mouse, keyboard, external drive). I can see them being connected through sudo lsusb, ...
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98 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 ...
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545 views

USB 2.0 ports don't work on Sony VAIO S series laptop

I have a Sony VAIO S-series laptop running Ubuntu 14.04 LTS. My USB 3.0 port works but my two USB 2.0 ports do not work. I've read through this thread but could not find a solution to my problem. All ...
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153 views

3 Modems HUAWEI E220 - Finding diferent data to make permanent USB Ports

I Have 3 Modems Huawei E220 USB connected on the same hub in the back USB Motherboard Ports. After they are connected they work very well - no conflicts. When I restart the system, all USB ports ...
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645 views

Ubuntu 14.04 - I/O error during USB installation

I installed Ubuntu 14.04 on a USB using Universal-USB-Installer-1.9.5.2 and I installed the 64-bit version. I want to put Ubuntu on my mom's laptop. We already had Ubuntu on it (v 14.04) but it was ...
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159 views

Auto-mount usb drive on chromebook to use with dropbox

I have replaced Chrome OS on my Acer C720 with Ubuntu 14.04, so far I'm quite happy besides the limited local storage capasity. To remedy this I have bought a 32 GB USB Drive (SanDisk Cruzer Fit) and ...
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46 views

usb keyboard doesn't work in initrd shell

I'm working on a custom initrd that I'm netbooting and need to break into a shell. Unfortunately the USB keyboard doesn't work once it breaks into the shell. It does however work when I netboot it ...
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115 views

USB ports don't work during installation.

I am a new user and I have Windows 7. I tried to install Ubuntu 14.10, I have done it before with success, but my keyboard, mouse and wifi antenna weren't working. They are all connected in USB ports. ...
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231 views

Asus laptop and faulty USB 3.0

I have weir issue with my asus laptop in have only one usb3.0 and it works, sometimes.. sometimes it just dies. $ dmesg | grep xhci_hcd [ 1.488284] xhci_hcd 0000:04:00.0: xHCI Host Controller [ ...
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456 views

Ubuntu 14.04 usb keyboard shift not working

I am using ubuntu 14.04 Yesterday my shift key on my usb keyboard stopped working. The laptop shift key works fine. I have tried the following things to fix the issue but nothing works. restart ...
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195 views

Print hangs to Dell AIO 926

I have a Dell AIO 926 with Xubuntu 14.04. A quick search reveals it is in fact a rebranded Lexmark x3650. After adding the printer and messing around trying to get it to work, I am at a point where I ...
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391 views

KVM Switch Under Ubuntu 14.04

I'm trying to install a KVM Switch between two computer. The first one runs under Windows XP. The mouse/keyboard/screen works perfectly (the first computer is an ACER Aspire (Lifestyle Line)). When I ...
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52 views

writing to an USB optical mouse

On the internet I find a lot of examples of people reading from the /dev/input/mouseX device the dX, dY and status byte from an USB optical mouse. From some research I found out that such an USB ...
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2k views

Ubuntu 14.04 Virtualbox Guest USB Drive Mounting Works For Some Devices but Not Others

I have a VirtualBox ubuntu guest running on a osx host. I've searched the web and implemented the solution for similar problems, but nothing has helped me resolve my issue. When I connect my phone, ...
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116 views

UEFI, NVRAM, and Portable Installed USB Drives

I would like to know how to create a portable installed Ubuntu system that is bootable in UEFI, as opposed to a persistent live system. I think I am encountering problems with non-volitile RAM. I ...
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37 views

Same external drive and file, different md5sum when connected via USB3 vs USB2

I have an external USB3 HDD with an ext4 partition on it. I've been plagued with file corruption issues for days whilst trying to transfer a large (~200GB) file from the drive, and I've finally ...
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113 views

Mounting and reformatting an hpfs flash drive

A while back I downloaded the Ubuntu 13.10 iso and used Linux Mint to make an install disc. Ubuntu 14 came out, though, and I want to create multiple OS installers on that flash drive. In Windows, ...