I have recently bought an ASUS SBW-06D2X-U external USB Bluray unit for my Dell Vostro 3350 i7 notebook. I pluged it as instructed, with an external power source, but the unit just flashes and never gets mounted.

The most strange thing is that I tried it on 2 computers at my work (12.04 and 14.04) and it worked flawlessly.

I used a USB voltage/amperage tester to check the ports and they have similar reads at my home and at work.

Checking dmesg I see that Ubuntu recognizes it and then immediately disconnects. When I first started looking for this issue I was using Ubuntu 14.04 64bits and in order to try to solve this I upgraded to Ubuntu 14.10 64bits but the problem continued.

Dmesg output: http://pastebin.com/1WWpPk8r

Any help appreciated. Thanks.


result of 'lsusb -v -d 13fd:0940':


  • Do you have another CDROM/DVD, .. in that machine? If yes, did the machines at work also have one? – Fabby Nov 27 '14 at 18:09
  • Well, my home notebook has an internal ssd and a hdd. I have removed the original dvd writer and substituted it for a ssd. In my work the computers I tested are desktops and they both have dvd writers in them. Do you think this is relevant ? – Nelson Teixeira Nov 27 '14 at 18:16
  • apparently not... ;) – Fabby Nov 27 '14 at 18:17
  • Can you provide the output of lsusb -v -d 13fd:0940 (you'll have to be fast to get some output, or be patient until you get output) – Fabby Nov 27 '14 at 18:30
  • 1
    I'm stumped... Upvoted your question so it will get some more attention from people who know more then me... – Fabby Nov 28 '14 at 21:01

I finally made it work. It was an energy problem. I have a notebook "board" which serves as ventilation and usb hub. I pĺugged 2 usb hubs to it with keyboard and trackball attached to them and I was trying to connect the Blu-ray unit to one of the hubs. I disconnected all this, connect everything to an energized hub plugged directly to the notebook and it finally stabilized and mounted correctly.

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