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Linux Ubuntu

VirtualBox (4.26) USB Issue: “unable to enumerate USB device on port n”

After a couple of hours trying to get a USB device (USB-to-Serial FTDI) working in VirtualBox with OSX host and Ubuntu 12.10 guest and receiving an error message similar to the follow:

usb 6-3: new full speed USB device number 24 using ohci_hcd
usb 6-3: device not accepting address 24, error -110
hub 6-0:1.0: unable to enumerate USB device on port 2

It turns out, the issue lies with VirtualBox, when the machine is given more than 1 processor it fails to properly mount any USB device. The only fix I have found to work is to simply reduce the number of processors back to 1. Once it’s returned the USB devices work simply by mounting them the usual way, from the VirtualBox menu > Devices > USB Devices >.

If anyone find a better solution, be sure to comment below.

Categories
HowTo Posts Ubuntu Video

HowTo: Switch the Window Menu Buttons Back to the Right – Ubuntu 10.04 / 10.10 / 11.04

I’m not an OSX person and personally prefer my minimise, maximise and close buttons to be in that order on the right, which they are not as default on the new Ubuntu 10.04 (Lucid Lynx) so here’s how you can swap them back to their rightful place (pun intended).

This can be done either of two ways:
Use the following one line command to edit gconf (for more info type man gconftool):

gconftool -s /apps/met>gconftool -s /apps/met>gconftool -s /apps/metacity/general/button_layout -t string menu:minimize,maximize,close

OR
Using gconf-editor (the GUI version):

  1. In terminal type: gconf-editor
  2. Navigate to /apps/metacity/general
  3. Change button_layout to: menu:minimize,maximize,close
  4. Hit enter and you are done.