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.

learn more… | top users | synonyms

0
votes
1answer
28 views

Need help with USB Speakers. Logitech S100, Ubuntu 15.04, USB 1.1

I am a first time user of Ubuntu. I recently installed it as a dualboot with Windows 7. I have Logitech S100 USB speakers which work fine in Windows. However, I can't get any audio to play in Ubuntu. ...
0
votes
0answers
26 views

Why does wifi USB dongle slow down USB stick file copy/transfer?

I am on Ubuntu 15.04 but my problem has been around for a long time in previous releases - I have a PC with a Belkin wifi USB dongle attached using the r8712u driver. Every time I copy a file, ...
0
votes
0answers
18 views

How to fix modprobe?

I followed some instructions, like a typical noob, in trying to assign a tty/USB0 to my la crosse technology USB device. Instead, I guess I was installing a modprobe for an "ipaq" (I thought it was a ...
0
votes
1answer
45 views

Why writing speed is not high as reading speed in usb 3?

I have attached the benchmark test finding for my new computer. The test is for USB 3, and in the result the writing speed is only 23.8 Mb/s but the reading speed is ok as expected for usb 3. Can any ...
1
vote
0answers
33 views

Do I have to install any additional driver for my usb 3 port in ubuntu 14.04 LTS?

I installed ubuntu 14.04 lts in my new laptop (HP 250 G3 Notebook). It has a usb 3 port with it, but surprisingly the speed of usb 3 and usb 2 is same. I have attached the output of lsusb Bus 001 ...
1
vote
1answer
35 views

Which version should i use? [duplicate]

I have an old netbook and I wanna use it again. It's a Positivo Mobile, MOBO M900. Netbook setup: 1.2ghz processor 512 mb ram 4gb hd winXP Is there any linux distro that I can use? I have an ...
0
votes
0answers
16 views

Problem restoring disk image to external hard drive

The image I am trying to restore is an image of a usb stick that I installed Ubuntu onto (not a live usb) I created a disk image from the usb stick using the Disks utility, and saved it to my ...
1
vote
0answers
85 views

Blue Snowball iCE Microphone not working on Ubuntu 14.04 LTS

I recently purchased a Blue Snowball iCE microphone. It seems like this person and this person had success using this on earlier versions of Ubuntu. When I plug in this microphone, it's not recognized ...
0
votes
1answer
23 views

usb read-only in gui, but works fine from terminal (12.04)

From all that I've read on-line, it appears I have a new twist on the usb-read-only problem. When I first tried a new usb drive, whenever I tried to drag-drop a file into it, I got the error message ...
0
votes
0answers
80 views

USB devices keep asking for password - polkit makes no difference

I was trying to make a live USB using 14.04 Ubuntu dual boot on a Chromebook. I used startup usb creator, but it wouldn't work, kept saying installation failed. It said I didn't have permission to ...
1
vote
1answer
18 views

No sound through USB headset

Running Ubuntu 14.04, clean install with updates. My headset is a Turtle Beach Z300. I've read plenty of solutions for no sound in Ubuntu but nothing has worked yet. Here's what I've done: My ...
1
vote
0answers
8 views

problem with unformatable usb flash

I've a problem with my usb flash, this flash had a bootable sabayon installation on it before, and it worked, but when I write ubuntu 14.10 with startup disk creator on this usb, and tried to install ...
0
votes
0answers
17 views

LUKS encryption + USB dongle keyfile = if not plugged, disallow passphrase prompt?

My laptop is LUKS-encrypted. I put boot & keyfile on a USB dongle: if the dongle is not plugged at boot, you cannot enter linux. But when I dont plug the USB dongle (which contain the keyfile), ...
1
vote
1answer
23 views

USB Ports No Longer Working

A few days back I had tried to plug a cooling fan into one of my USB ports. Much to my dismay, it did not work. I unplugged my mouse and placed the cooling fan's plug into there, and it worked just ...
0
votes
0answers
40 views

installaton of ubuntu 14.04 on dell precision t7810 fails: No boot device found

I want to install ubuntu 14.04 unto a Dell Precision 7810. I created a USB drive using the "Startup Disk Creator". Installation went smoothy. Unfortunately, it failed at boot time with "No boot device ...
0
votes
0answers
14 views

Low speed and problems in USB tether

I have strange mtr result, this is google.com mtr result: DEMON (0.0.0.0) ...
1
vote
0answers
29 views

Inateck USB 3.0 Hub+Gigabit Ethernet Adapter with Acer c720

I'm not sure if this is where I should be asking this, so if this is the wrong place please let me know and I can post elsewhere. I am running HugeGreenBug's Ubuntu 14.10 for Acer c720 with coreboot ...
-2
votes
1answer
51 views

dd: failed to open ‘kali-linux-1.1.0a-amd64.iso’: No such file or directory

I'm trying to create a Kali Bootable USB Drive on Ubuntu 14.04 LTS following these instructions -> http://docs.kali.org/downloading/kali-linux-live-usb-install Everything seemed alright till the ...
0
votes
0answers
22 views

Mobile phone storage device not recognized by Ubuntu

I have a mobile phone about two years old. When I first bought this phone, the internal micro SD card was recognized without the slightest problem. All I had to do was to connect the phone using a USB ...
0
votes
1answer
22 views

I installed Ubuntu on an external UDS HDD. My boot disappeared. Why?

I can't explain why my boot disappeared, after I did it: I plug a pendrive (live Linux Debian) + a virgin HDD-USB, all that on my linux Debian Machine. [usb pendrive live Linux] <=plugged=> My ...
1
vote
1answer
18 views

midi controller issue; unable to enumerate usb devices during boot

I have a lenovo thinkpad with a firewire express adaptor card that I recently setup for recording. I connect my maudio controller either/and via 5 din midi to my audio interface or via usb to my ...
1
vote
3answers
56 views

Serial Port Debugging on Ubuntu

I have a written a C++ program on Ubuntu 14.04 LTS which communicates with a USB2Serial device /dev/ttyUSB0 . I want to know if the connection parameters are set correctly on this file handle, what ...
0
votes
1answer
37 views

Boot Ubuntu from Fully Encrypted USB Stick

As the title says, I would like to be able to install Ubuntu on a USB stick such that I can (a) boot from the USB stick and (b) Ubuntu uses full disk encryption. I was able to put Ubuntu on a USB ...
1
vote
0answers
26 views

Meizu ubuntu / Connect to macbook per USB / Filetransfer

I have a new Meizu MX4 Ubuntu and it is not possible to mount the device on an macbook or imac. How I can transfer my music, photos etc. from/to the Ubuntu phone? I think this I quite very important ...
0
votes
0answers
19 views

How do I enter password via keyboard without using pamUSB?

I installed pamUSB and I have used my USB flash drive to store and enter my password automatically in ubuntu 14.04. But my USB memory is formatted. Therefore, the system shows the following message ...
0
votes
0answers
25 views

Trying to install an USB video capture card, but idk why the driver is not loading

So here is the thing. I'm trying to use this USB video capture card on my linux but I dont know why my linux doesn’t load a driver for it. The card I'm talking about is this one: ...
-1
votes
1answer
52 views

Unable to create bootable drive?

So im not sure if im doing something wrong or if this has to be done in linux itself, but ive been trying for hours with windows to make a bootable usb drive so i can install my other linux OS for my ...
1
vote
0answers
24 views

Cannot unmount USB o write on USB as normal user

I have the following file of rules in /etc/udev/rules.d/ KERNEL!="sd[a-z]*", GOTO="media_by_label_auto_mount_end" # Import FS infos IMPORT{program}="/sbin/blkid -o udev -p %N" # Get a label if ...
0
votes
0answers
9 views

Random shutdowns related to UPS

I'm using 15.04 with a CyberPower CST1300ALU UPS, connected by USB, and after a brief power failure, the computer will shut down after what looks like a USB disconnect. Can anyone help me figure out ...
-1
votes
0answers
20 views

Unable to install external webcam on ubuntu

I've a samsung laptop with an embedded camera, which works fine. However I've a better webcam that would like to use but all software I've used cannot detect it in ubuntu. with lsusb, i can see the ...
0
votes
1answer
50 views

Installing an asus usb-n14. I read similar questions but mine comes with an install dvd w/linux

I downloaded http://dlcdnet.asus.com/pub/ASUS/wireless/USB-N14/DR_USB_N14_261320140102_Linux.zip from How to install Asus USB-N14 Adapter?, My adapter comes with a dvd including a file named ...
0
votes
0answers
13 views

how to get SEC1110 smartcard reader to work on Ubuntu 14.04

I am trying to work with an SEC1110 card reader on my Ubuntu lsusb provides this: Bus 003 Device 004: ID 0424:1104 Standard Microsystems Corp. I have installed the following: libusb pcsc-tools ...
1
vote
0answers
35 views

USB Huawei LTE modem - after restart USB isn't connecting

the thing I'm trying to do is to restart LTE modem: Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard which I do with simple script: #!/bin/bash echo -n "0000:00:1a.0" | tee ...
1
vote
0answers
34 views

How can I boot Ubuntu trial from USB drive on Windows 8.1 PC with SSD?

I've recently installed Ubuntu 14.04.2 LTS onto a USB drive using the Universal USB Installer. Everything up until this point was fine. I then restarted the computer, and tried to access the boot ...
0
votes
0answers
26 views

Ubuntu for Arm on AOC All in One Android Monitor

I would like to install Ubuntu for Arm on an AOC A2272PW4T, a 22" All in One mointor that can act as a display as well as a giant 22" android tablet. I had a slight issue where I got locked out of ...
0
votes
0answers
60 views

How to install Ubuntu 15.04 over my old Windows XP with a USB stick?

I'm totally new to Ubuntu, but very keen to learn a lot. And here I start. I have my old computer running on Windows XP, and I would like to install Ubuntu 15.04 over it, in other words, just have ...
1
vote
1answer
51 views

How to install a USB TV tuner?

I have a USB TV tuner from here. It works fine with Windows, but Ubuntu 14.04 doesn't seem to recognise it... When typing lsusb in the terminal I'm getting the following output: Bus 002 Device ...
-1
votes
0answers
22 views

Unable to re-install Ubuntu 14.04LTS dual boot from USB. Minimal bash-like line problem

Yesterday I formatted the Windows F drive where Ubuntu 14.04 was installed (from a USB) because of some problem. Now when I am re-installing the same version of Ubuntu by the same USB, I could not ...
0
votes
0answers
17 views

driver problem or something

yesterday i installed ubuntu 14.04 but this morning something strange began to happen i dont know how to explain, so... i have a mouse and a Xbox 360 usb wired controller, when i use scroll (up or ...
0
votes
1answer
135 views

“i8042 no controller found” error while trying to install ubuntu on Mac Book Pro early 2011

Trying to install ubuntu with rEFInd on a mac book pro 15 early 2011 model. "i8042 no controller found" error comes up and prevents installation. I have read the other answers regarding the topic but ...
0
votes
0answers
9 views

I cant connect my yoga tab 8(ANDROID 4.4.2) to ubuntu 14.04

When is connect it first shows up and works perfectly but when i try to copy or delete something it shows that file location missing or libmtp error . I tried the sudo apt-get install mtpfs command ...
0
votes
2answers
37 views

Unable to boot ubuntu 14.4 from usb on dell inspirton 15 3537

So I recently installed windows 10 on my computer. Before that I had a dual boot windows 7/ubuntu 14.4. Now I wanted to boot ubuntu from a usb. I created a live usb using unetbootin. After that I ...
1
vote
1answer
33 views

Create a bootable ubuntu Usb stick on Mac [duplicate]

I have followed the instructions from various posts at the forum and I when I execute in the terminal sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m then it requires the password but ...
0
votes
1answer
35 views

Wireless adapter not working Realtek

I bought a Realtek semiconducter Corp. RTL8192CU 802.11n wireless LAN Adapter for my Vostro 200 Desktop, as it doesn't come equipped with a PCI card, i went to my grandfathers house as he has the ...
0
votes
0answers
14 views

Gparted Recognizes Usb but not Ubuntu 15.04 or the file manager

I plugged in my usb today and expected to be able to find it in the manager,to my surprise it did not show up so i plugged and re plugged in various areas, so i went to gparted and formatted correctly ...
2
votes
1answer
95 views

Ubuntu 14.04 USB installation drive not recognized during boot(Dell Latitude D630)

Ubuntu 14.04 USB flash drive isn't recognized during boot. I have had a bunch of hardware failures this week and I am down to a hybrid image laptop harddrive with mint 12 installed on it to boot as ...
0
votes
0answers
16 views

Logitech R400 on Lenovo T440s, Ubuntu 14.04 not properly recognized

I would like to use a logitech R400 pointer with my Lenovo T440s running on Ubuntu 14.04 64bit. There is a problem with the keys so that forward and backward buttons result in jumping at 1st or last ...
0
votes
0answers
54 views

Android phone MTP - create a mount point

I need to use dd command to create a image of the internal memory of my phone (Samsung Galaxy Grand Neo). To use dd I need to know the if source (e.g. /dev/sd1) but right now I just can access my ...
0
votes
0answers
44 views

USB 3.0 PCI-e card not working

I looked around but I couldn't really find a fix for this. I have this pci-e card, it works perfectly fine in Windows 8.1 (which I am dual booting with Ubuntu 15.04 -both are 64bit-). However in ...
1
vote
1answer
59 views

I have a Ralink Wireless Lan USB Adapter that I can't get to work no matter what I try

I am new to linux so there are many things that I may or may not have done correctly, but I have gone through many solutions on installing this driver for the USB adapter, however, I never have the ...