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• USB 3.0 randomly disconnecting and reconnecting

  - by user1624552

  I had an old laptop that died so I have bought a new one. I have taken the 2.5 SATA hard drive from the old laptop and I have put it into an external 2.5 SATA enclosure usb 3.0 and I connect it to the new laptop. My new laptop has Windows 8 64 bit installed. When I connect the external hard drive to the new laptop throught USB 3.0 port, it gets randomly disconnecting and reconnecting continuously, even when I am not using it. Also happens if I connect to another usb 3.0 port. Also I have observed that If I connect the external hard drive to a USB 2.0 port instead of an USB 3.0 port all work ok, no randomly disconnection and reconnection occurs. It only happens when I connect it to an USB 3.0 port. Some ideas to solve this issue?

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• NO USB devices show in windows 8.1 device manager

  - by collusionbdbh

  Whatever I plug into my USB ports will get power and will charge but will not connect to the computer. I have restarted the computer several times, I re-installed the chipset drivers and still even a USB HDD will not show up under the device manager, not even as an unknown device. I believe this happened because I switched android adb to listen on tcpip rather than USB as this is when the USB ports stopped working. I have set it back to USB but that hasn't seemed to correct the issue. It seems to me that ADB has shut off detection of devices through USB and I am out of ideas and can't find anything useful online. I would prefer not to have to reinstall windows unless I really have to but it is looking like that is exactly what I am going to have to do. I am using windows 8.1. Thanks

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• How to get Bus and Device relationship for a /dev/ttyUSB

  - by Ernesto Campohermoso

  I need to write an script for restart USB dongles. I have all tools but I can't link my /dev/ttyUSBx to physical BUS and DEVICE. An issue is that I have three dongles with the same id vendor and id product. If I do lsusb the output is: Bus 001 Device 004: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem Bus 001 Device 006: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem Bus 001 Device 007: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem Bus 001 Device 002: ID 80ee:0021 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub And I have attached it to: /dev/ttyUSB0 /dev/ttyUSB3 /dev/ttyUSB5 But I want to know which device is related with which Bus Device. By example I need to get the following: /dev/ttyUSB0 -> Bus 001 Device 006 /dev/ttyUSB3 -> Bus 001 Device 004 /dev/ttyUSB5 -> Bus 001 Device 007 I'm using Ubuntu Server 10.04 and I tested the tools: lsusb hal lsmod But I can't get the relationship.

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• Can't access external hard drives or thumb drives

  - by calden

  I am not a complete linux noob but I don't know a lot either and would greatly appreciate some help with this. I just installed Ubuntu 10.10 onto my laptop. Everything is working great however USB devices such as thumb drives and external hard drives wont show up. I have been looking around a bit and when I run sudo fdisk -l it displays this: Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00065684 Device Boot Start End Blocks Id System /dev/sda1 * 1 29255 234983424 83 Linux /dev/sda2 29255 30402 9212929 5 Extended /dev/sda5 29255 30402 9212928 82 Linux swap / Solaris Disk /dev/sdb: 16.0 GB, 16026435072 bytes 64 heads, 32 sectors/track, 15283 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000df90d Device Boot Start End Blocks Id System /dev/sdb1 * 1 15283 15649776 7 HPFS/NTFS It does seem to display my 16 gig thumb drive but other then seeing it here I cant access it to read and write files to it. It does the same with my external hard drive. I know those devices work as I have tried them on my other computer and they are working fine. Also this is what is in fstab if this will help anybody help me: proc /proc proc nodev,noexec,nosuid 0 0 /dev/sdb1 / ext4 errors=remount-ro 0 1 /dev/sdb5 none swap sw 0 0 Thank you very much for the help everyone.

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• Very Slow DSL (ethernet) speed

  - by Abhijit

  I 'was' on opensuse 12.2 when my dsl speed was normal. Yesterday I switched from opensuse to ubuntu 12.04 and speed decreased. It came to range of 7-10-13-20-25-kbps. Then I switch to linux mint, and then to fedora. Still slow speed. When I was in ubuntu I disabled ipv6 but still no luck. Now I am in fedora but this time with DIFFERENT ISP. And still I am getting very slow sped. So my guess is this is nothing to do with os. What can be wrong? Is this problem of NIC? Does NIC speed decreases over time? Does NIC life ends over time as with keyboard or mouse? Help please All the os I used are 64 bit and my laptop is Compaq Presario A965Tu Intel Centrino DUal Core. Interesting thing to notice is I get normal speed while downloading torrent inside torrent client softwares. This slow speed issue applied to download from any web browser or installing software using terminal.

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• Cannot update grub with paramters on live USB

  - by Nanne

  I have booted from a live USB ("Try Ubuntu"), that also has a persistent option set (I used LiLi to create one) to do some tests for this pcie hotplug issue I'm having. I'm trying to test some boot paramaters (like in this question) by doing this sudo nano /etc/default/grub sudo update-grub The problem is that that last command gives me this: /usr/sbin/grub-probe: error: failed to get canonical path of /cow. It looks like /cow is the file-system that is mounted on /, according to: :~# df Filesystem 1K-blocks Used Available Use% Mounted on /cow 4056896 2840204 1007284 74% / udev 1525912 4 1525908 1% /dev tmpfs 613768 844 612924 1% /run .... Is there a way for me to run update-grub?

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• How can I transfer files to a Kindle Fire with a Micro-USB cable?

  - by Jeff

  I'm running Ubuntu 11.10, and when I connect my Kindle Fire to my computer via micro usb, it is not recognized automatically. Other usb devices, such as my ipod and digital camera, are recognized just fine. It does not appear to be a usb power issue, since the Kindle Fire wakes up from sleeping when it is plugged in. I never get the message on the Kindle telling me it is ready to accept files from the computer, though. Here are the last 15 lines of dmesg after plugging the kindle in: jeff@prime:~$ dmesg | tail -n 15 [45918.269671] ieee80211 phy0: wl_ops_bss_info_changed: arp filtering: enabled true, count 1 (implement) [45929.072149] wlan0: no IPv6 routers present [46743.224217] usb 1-1: new high speed USB device number 5 using ehci_hcd [46743.364623] scsi8 : usb-storage 1-1:1.0 [46744.366102] scsi 8:0:0:0: Direct-Access Amazon Kindle 0001 PQ: 0 ANSI: 2 [46744.366356] scsi: killing requests for dead queue [46744.372494] scsi: killing requests for dead queue [46744.384510] scsi: killing requests for dead queue [46744.392348] scsi: killing requests for dead queue [46744.392731] scsi: killing requests for dead queue [46744.396853] scsi: killing requests for dead queue [46744.397214] scsi: killing requests for dead queue [46744.400795] scsi: killing requests for dead queue [46744.401589] sd 8:0:0:0: Attached scsi generic sg2 type 0 [46744.407520] sd 8:0:0:0: [sdb] Attached SCSI removable disk And here are my mounted filesystems: jeff@prime:~$ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 298594984 174663712 108763480 62% / udev 1407684 4 1407680 1% /dev tmpfs 566924 896 566028 1% /run none 5120 0 5120 0% /run/lock none 1417308 300 1417008 1% /run/shm /home/jeff/.Private 298594984 174663712 108763480 62% /home/jeff I should note that, since I got Dropbox working on my Kindle, the usb is no longer strictly necessary, but as a matter of principle I'd love to get it working.

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• Unable to format 16Gb Usb Disk

  - by akshay.is.gr8

  Whenever i try to format my 16 GB usb disk using gparted it does to formating and when it refreshes then show unknown. tried disk utility as well. disk utility was able to format it into FAT but files vanish web the disk is removed and attached again. edit: the disk format completes every time but when using gparted it immediately show Unknown type file system and disk utility show FAT but when the Disk is unplugged and then connected the files are not there. either way it is unusable.

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• Does Google include the time to load images, for a single page, as part of the page speed?

  - by Pure.Krome

  we all know that Google's affects your page rank with the load time of a page. How? That's part of the secret sauce. But we know that page speed is a serious factor. So - what is considered the speed of a page? Is it just the first (and main) html file which the GET receives? Or does it also include loading of images as part of that speed. so for example... GET /index.htm <- takes 0.45 seconds to retrieve (including DNS lookup before). robot parses page.. see's there's a single main image.... GET /img/main.png <- takes 5 seconds to download. is the page speed for that resource, 0.45 seconds OR 5.45 seconds? I understand Javascript is not fired .. but are any of these external resources all downloaded and part of the page speed?

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• Diabetic trying to use Ubuntu with Medtronic Carelink insulin pump support USB device

  - by Gary C.

  I am taking a wild shot here: I am a type 1 diabetic who is going on the Insulin pump. Unfortunately, the Medtronic Carelink USB device that uploads data from the pump online only has windows drivers. Has anybody managed to get this working under Ubuntu using Wine or by any other method: lsusb yields: Bus 001 Device 014: ID 0a21:8001 Medtronic Physio Control Corp. MMT-7305WW [Medtronic Minimed CareLink] I really don't want to buy a windows machine just for this, but it's probably one in a million that somebody else has managed to make this work under Linux.

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• Help me with CDMA usb modem (How to change storage mode to modem mode)

  - by user98698

  My modem isn't in the device list of usb_modeswitch.... so I cannot automatically use the modem on the ubuntu.... I found the way to change the modem from usb storage mode to modem mode and I can use my modem. But I forgot the instructions. I don't know the modem's name. It's chinese modem. But here is vendor/product id ....05 Qualcomm, Inc. Mass Storage Device and I think the target vendor/product id is ..... 05. So help me to change. I don't want to replace modem. pls. Sorry for my english....

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• Running UBUNTU from a USB Flash drive on Acer

  - by Byron Blue

  I've made a bootable USB flash drive to run UBUNTU. The drive works fine on MOST laptops/computers I try: It does not want to start on my (favourite) Acer Aspire 5745 (Windows 7 64 bit). The opening screen has SYSLINUX 4.06 EDD 4.06-pre1 (...) and simply sits there. I was using UBUNTU 12.04.1 64 bit until I tried booting to the Acer this morning. I've tried booting to 10.04 as well (saw this as a fix on a discussion) with the same result. I really want to use the Acer for development and do not want to wipe my Windows 7 from the hard disk. Are there any solutions/answers?

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• Using a DisplayLink USB video adapter on Ubuntu 12.10

  - by Jason R

  The line of USB video adapters made by DisplayLink has a somewhat sordid history under Linux. In past Ubuntu releases, the process of getting them to work has been somewhat difficult, inspiring a number of past questions on this site: example 1 example 2 example 3 However, there are some indications that version 3.5 of the Linux kernel (which is used by 12.10) contains better support for these adapters, which should make them easier to use. I currently have a single-GPU machine (it is an Nvidia adapter) with dual monitor outputs. I would like to add the DisplayLink adapter to drive a third external monitor. How can I set this up on Ubuntu 12.10?

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• Ubuntu 12.04.1 LTS USB not being detected after formatting with Startup Disk Creator

  - by Zach

  sudo fdisk -l lists the drive, however, I cannot find it in the file explorer. Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000d871e Device Boot Start End Blocks Id System /dev/sda1 * 2048 486322175 243160064 83 Linux /dev/sda2 486324222 488396799 1036289 5 Extended /dev/sda5 486324224 488396799 1036288 82 Linux swap / Solaris Disk /dev/sdb: 8195 MB, 8195480064 bytes 253 heads, 62 sectors/track, 1020 cylinders, total 16006797 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00027ae4 Device Boot Start End Blocks Id System /dev/sdb1 * 62 15999719 M 7999829 c W95 FAT32 (LBA) Manually mounting it produces this error message :~$ sudo mount -t vfat /dev/sdb1 /media/external -ouiduid=1000,gid=1000,utf8,dmask=027,fmask=137 mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so Is the usb toast?

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• My pc freezes when I connect to the internet with my iburst usb modem

  - by Kevin

  I am quite new to it and I'm having some trouble with iBurst usb modem.I followed the instructions of Graham Inggs here: https://help.ubuntu.com/community/Iburst and now it seems I can connect to the internet, but when I try to connect my whole desktop freezes. When I boot into Ubuntu with my modem connected all is well until I try to open Firefox then my desktop freezes as well.I used Graham Inngs' ibdriver in DKMS fromat solution and it worked apart from the freezing. Graham Inggs made a patch for this problem for older linux versions but I can't seem to find anything compatible with 12.04. Can someone please help?

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• External USB hard drive makes noises when the computer is turned off

  - by Amir Adar

  I have an external USB hard drive of 500GB. I can't tell what model it is exactly, as nothing specific is written on it and I don't have the box anymore. I use it as a backup disk. It works absolutely fine when the computer is turned on: no problems with writing or reading, and everything is done in dead silence. However, if I turn the computer off and the disk is still connected, it stays on and makes clicking noises. For that reason I only connect it when I need to back up or restore. Does that mean there's a problem with the disk, or with some preferences in the system itself? Or something else?

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• Ubuntu Unable to format 16Gb Usb Disk

  - by akshay.is.gr8

  Whenever i try to format my 16 GB usb disk using gparted it does to formating and when it refreshes then show unknown. tried disk utility as well. disk utility was able to format it into FAT but files vanish web the disk is removed and attached again. edit: the disk format completes every time but when using gparted it immediately show Unknown type file system and disk utility show FAT but when the Disk is unplugged and then connected the files are not there. either way it is unusable.

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• How do I consistently activate USB speakers

  - by Andrew.Healy

  I have a pair of Ricco USB speakers. As these are external, I sought to use them with 11.10. They are recognised by 'aplay -l' and Pulseaudio- I have selected them, but, have to reset the volume, every time I log on. I can also only recieve feedback and sound from apps and programs- like Kaffeine- on this boosted volume- I cannot get System Sounds, like logon or logoff. I have tried the alsamixer install that used to work, to no effect. Is their an app that I should be trying or is this feat impossible ? I have tried to delete all the files in .pulse and rebooting or just deletion of the entire .purge directory, as Michael K suggested- neither work as the directory is automatically rewritten on reboot. Ideas?

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• Unable to select iso file when making live usb with Yumi multi boot installer

  - by user169875

  I am trying to make a Live USB of ubuntu 12.04 desktop. I did download it from the site. It shows that its a iso file. I am trying to browse it from multiboot installer(YUMI) but I don't know why Multiboot Installer is unable to detect it as it is a iso file. I tried renaming the file .iso. but nothing worked for me. Please help me I am stuck and frustrated. Trying to get things straight for hours.

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• Unable to mount 1TB USB external HDD - Error

  - by superbDeveloper

  Hi, I'm getting an error when I plug in my 1TB USB external HDD, the wierd thing about this is that it was working fine before and I've been using it for about a couple of months now. yesterday I compressed one of the folders which had about 120GB of data but the compression failed after an hour and I decided to unmount the drive and shut everything down. Today when I tried to plug in the drive I got the following error: Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdc, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so output of cat /proc/partitions below muzikayise@muzikayise-supercom:~$ sudo fdisk -l /dev/sdc Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x39dcba64 Device Boot Start End Blocks Id System please will someone kindly assist with this? thanks in advance,

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• Xubuntu, LXDE, USB Booting

  - by Kosciak

  Welcome, My problem appeared today - I was using Xubuntu for a long time, but find out that LXDE should be faster than Xfce, so I installed it. After installing I followed tutorial for removing Xfce, cause disk in my computer is very small and I wanted to release some free space. I used command from this tutorial: How to remove xubuntu-desktop? but instead of remove I entered purge command… and rebooted at the end. And I uninstalled whole my things. The problem is in installing system again - it's old Sony Vaio laptop (PCG-GR250) and I have broken CD-DVD drive. It's possible to boot from USB? I can access recovery mode, will this help me? Please answer fast, because it's my brother computer, and his going to kill me if I won't fix this fast :(

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• Internet Timeouts with TP-Link TL-WN821N wireless usb stick - existing solutions dont work

  - by Sheena

  I'm running Ubuntu12.04 and I'm trying to get a TP-Link TL-WN821N to work. The solution from Internet Timeouts with TP-Link TL-WN821N v2 wireless usb stick didn't work for me. Neither has anything else... I've installed rtl8192cu as per instructions I found elsewhere to no avail. The symptoms I am experiencing are: When I plug in the device the PC can see and connect to wireless networks fine. The network I'm using has internet access and the signal strength is pretty strong. I can't ping and I can't browse the internet (timeout). Any ideas? I'm not sure what the next step would be or what information would be useful at this point.

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• Wireless USB Adapter driver configuration

  - by Jones

  First I would like agree one thing that this is fully for Ubuntu, not for BackTrack. However I'm posting my BackTrack question here since I find similar problems in backtrack forum are being unanswered and Linux/Unix site of StackExchange has very low attraction. I'm having USB wifi adapter (iBall Baton), having chipset RTL8191SU. It displays available wifi networks in Wicd manager. But while trying to connect it gives me bad password. When I'm trying to run airmon-ng it didn't returned me the monitor mode. I tried to replace with Ubuntu 12.10 drivers. But it totally nulled the device functionality. However I restored the drivers. I'm interested to compile drivers as if anyone indicate the methods. Awaiting ideas!

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• Content Manager Assistant PSVita Linux Does NOT Recognize USB Port

  - by Nicky Bailuc

  I have an external copy of Windows 7 alongside Quantal and I installed Content Manager Assistant on it. I was able to start the program successfully by finding the Executable file of the program in the program folder in Windows and run it in Wine, however Wine didn't recognize my PSVita that was connected through one of my USB ports. Is there any way to configure WINE to properly recognize the Vita? Content Manager Assistant is a Windows and Mac only program that allows you to transfer files between your PC and PSVita, kinda like iTunes for iPod.

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• Creating a bootable USB recovery drive to be used by someone who isn't computer savvy

  - by David

  I am looking for a way to prepare an image of an Ubuntu machine which would be bootable and installable in the easiest way possible. I'm actually preparing an Ubuntu machine for someone living far, and not computer savvy. If he ever has troubles with his installation, he could just put a USB drive in, boot the machine and everything would be resetted for him. I know there are many methods of creating/loading an image of a drive, but the ones I've found so far have complicated menus with several options to choose from, etc. Ideally, perhaps only asking a Yes/No question such as "Would you like to reinstall?" would be great. Does such a tool exist? Thank you in advance!

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