USB devices only recognized after running 'lsusb -v'

This is quite an annoying problem. My USB devices are only recognized (and auto-mounted) after I run lsusb -v. Nothing shows up in dmesg before this. After running it, all is well. I have to repeat this every time I plug in a device.
Any suggestions?

The problem is not with just USB storage devices, but with other devices too (printers, DVB sticks, mice).
progandy wrote:What happens if you run "udevadm trigger"?
Nothing.
Xylankant wrote:do you have udev and udisk (or udisk2, since you're using GNOME) installed? are those running?
also, is your user part of the "disk" and "storage" groups?
[rok@rok-laptop ~]$ sudo pacman -S udisks2 udev
warning: udisks2-1.94.0-2 is up to date -- reinstalling
warning: systemd-189-4 is up to date -- reinstalling
udev is now a part of systemd. I have had this problem even before I moved to systemd.
[rok@rok-laptop ~]$ systemctl status udisks
udisks.service - UDisks
Loaded: loaded (/usr/lib/systemd/system/udisks.service; disabled)
Active: active (running) since Tue, 04 Sep 2012 14:46:34 +0200; 2 days ago
Last edited by technolog (2012-09-07 09:19:35)

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Hi @yani1015,
Welcome to the HP Support Forums! I see when you were installing your HP Printer you got a message on your Computer saying 'USB Device not Recognized.' To better assist you can you leave me with the following information:
1. What is the Exact model of HP Printer you are using?
2. What is your current Operating system, Windows or Mac and which version?
3. Were you able to install the printer?
4. Did you plug in the USB prior to the software prompting you to?
Click here to download and run the Print and Scan Doctor > www.hp.com/go/tools- It was designed by HP to provide users with the troubleshooting and problem solving features needed to resolve many common problems experienced with HP print and scan products connected to Windows-based computers.
Please let me know what the PSDR finds, I will watch for your reply.
Thanks,
HevnLgh
I work on behalf of HP
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to the left of the reply button to say “Thanks” for helping!

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After a trip to the Apple Store with my iPod in which they diagnosed my iPod as being a "dud," I happily came home to plug in my new iPod, which...LOW AND BEHOLD...displayed the same issues. Here is what is happening:
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Did you try this:
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Usb device not recognized on shuffle

i have a belkin usb 2.0 device with 2 ports. it is plugged into my ibm thinkpad laptop. the mouse works fine in both ports -as does a photo scanner. but for some reason, the ipod shuffle is not recognized - i keep getting a green blinking lite and a message that says "usb device not recognized". funny, because the shuffle worked fine the other week when i installed all the software after purchase. i've updated windows software and reset the ipod. i've read elsewhere that some people have had the same problem - and that it was a malfunctioning usb port on the ipod shuffle. if so, what a piece of junk. maybe i just need to call tech support and ask for a new shuffle - i don't think that downloading the updater, etc. will help. any suggestions? thanks.

If it's working with other computers (using the same USB cable to connect the shuffle), then the problem is probably related to your computer.
If you connect something else to the same USB port (like a USB flash drive if you have one), does it work?
If you are using a USB hub to connect the shuffle, be sure to try a port that is directly on the computer. And try more than one port that is on the computer.
Also, it may be helpful to know some other details, such as type of computer (Windows or Mac) and the version of OS.
Since this is a laptop, if it has a main battery that can be removed, you may want to try disconnecting it from power and removing the battery. Leave it that way for a new minutes. Then, put the battery back, start it up, run iTunes first, and try the shuffle again. If there was a problem with your USB ports, that may correct it.

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First make sure the latest iTUnes is installed on this work PC, IF your allowed to install things on it, the latest iTunes version is 6.0.4.2 and can be downloaded from the apple site (Hit iPod+iTunes tab at the very top of this web page)
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Haveylu looked ere:
iPhone, iPad, or iPod touch: Device not recognized in iTunes for Windows
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Try cleaning the connector on the bottom of the phone. Use a magnifying glass to see what is stuck inside, a dry toothbrush and/or wood or plastic toothpicks (nothing metal). If that doesn't resolve the problem your phone is broken.

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Nokia e65, USB device not recognized using windows...

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@techvitalie
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