Few days before, I have upgraded my OS from 12.04 to Ubuntu 14.04 64-bit (I had the same problem on 13.10). Ever since that, when I try to boot my notebook with any USB cable connected to USB 3.0 port, the screen just remains black and nothing happens and I have to reboot my notebook by force(holding power button). With no cable connected, Ubuntu loads just fine and connecting anything to USB 3.0 is not an issue anymore.

I guess, that it freezes before the kernel is loaded, because when I tried to reboot the computer using alt + screen + b, nothing happened.I was experiencing these difficulties even on the previous version, but just sometimes. I am running DELL Vostro 3750.

Please, does anyone have any idea, what may be causing this?

Edit: Maybe I should have also included note, that it freezes after I choose in grub boot menu, what should be booted. But not promptly after I select it. For about 5 seconds computer seems to be doing something (disk control is blinking).

EDIT: As requested, I am posting output from sudo blkid:

/dev/sda1: UUID="499931f2-2f83-4353-8160-9a48a5ee1878" TYPE="ext4" 
/dev/sda5: UUID="f0ad1205-6b52-4990-bb7b-543d53d969c5" TYPE="swap" 
/dev/sdb1: LABEL="RezervovM-CM-!no systM-CM-)mem" UUID="E03EB4FA3EB4CAB4" TYPE="ntfs" 
/dev/sdb2: UUID="EE2AC63D2AC60317" TYPE="ntfs" 
/dev/sdb4: LABEL="Data" UUID="8CC631C4C631AEF8" TYPE="ntfs" 
/dev/sdb5: UUID="babe1371-f48f-4b95-a93a-360bcec268b3" TYPE="ext4"

and my grub.cfg is avalible here: http://sharetext.org/Vvob

  • 3
    have you checked the boot priorities/sequence? – VRU Feb 2 '13 at 9:47
  • No, I have not. Where I can do that? And what am I looking for? – Jendas Feb 2 '13 at 9:48
  • 2
    When you power ON your system, your fist screen will be your chipset screen in your case you will see DELL screen where you will see a prompt/function key for entering in to Setup. it can be either the "DELETE" or a function key(example 'F2') button. Check that out and once you are there move to "BOOT" and see the options set over there for boot priority 1,2.. – VRU Feb 2 '13 at 10:04
  • Well the first one is Hard drive and second removable drive... I do not think, that there is the problem – Jendas Feb 2 '13 at 11:48
  • 2
    Sometimes I got the same. But the same happened to me on Windows 7 too. I think it's related to some BIOS config/conflict, and not to the OS. – Rael Gugelmin Cunha Apr 30 '14 at 1:23

Is it possible that this is a BIOS issue?

I know my dell XPS laptop has several different USB settings in BIOS, but I don't currently have access to my laptop to see what they are (I'll post again later).

In the meantime, try resetting your BIOS to defaults, on Dells I think the option is F9 (from bios settings menu, labeled 'Setup Defaults').

  • I am sorry but that did not work. I reset bios to defaults but the problem remains. – Jendas May 1 '14 at 8:09

This appears to be a common problem with that model of Dell:


There is a design flaw on the motherboard. If it is still under warranty then send it back. You shouldn't have to do any of the things suggested in these post.

  • Thank you for your answer. As soon as I confirm, in cooperation with Dell techSupport, that it actually is this kind of problem, I will accept your answer. – Jendas May 2 '14 at 15:54

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.