Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

When I start up my laptop, my keyboard sends ^[[[B all the time. This causes the BIOS to show the settings manager. When I close the BIOS manager, GRUB/Linux will start up. Suddenly the screen is filled up with the sequence ^[[[B.

Strangely enough when I press any key, the problem disappears.

Does anyone know why? Or what key sends the sequence ^[[[B ?

share|improve this question
    
If you swap keyboards, does it make a difference? – soandos Aug 24 '11 at 15:42
    
@soandos Not that easy with a laptop. – Daniel Beck Aug 24 '11 at 15:42
    
ouch, sorry, should read more carefully next time. – soandos Aug 24 '11 at 15:44
    
@soandos Thank you for the idea. I hope I can solve the problem without buying a new keyboard. – SecStone Aug 24 '11 at 19:22

^[[B is the Up arrow key. (It's not exactly the same as in your question, but far more likey.)

share|improve this answer

To find out if this is a hardware or software thing, grab Linux Live CD and try booting from it (assuming you can get to it). If you still see the characters, chances are it's hardware.

I would also make sure your keyboard is clean and the key isn't stuck.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .