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

I have a Pavilion dv4-2153cl notebook running Windows 7 64bit Enterprise edition. (The processor is an intel i3) This morning I started to notice some really strange behavior in how it handled its built-in keyboard. At random intervals there will be a long delay in key presses, to which some keys will never show and other keys will continue to repeat until you hit the backspace. Other keys get mapped incorrectly to other keys.

If I hook up an external keyboard the problem does not appear.

Before I reformat the machine and do a fresh install, I thought I would check here to see if anyone has experienced this same issue and if so, how did you fix it?

[Update] After doing a fresh install of Windows 7, the problem is still occurs, thus ruling out any virus or spy/mal-ware.

[Edit] Added processor type and model number

share|improve this question

migrated from Apr 23 '10 at 7:18

This question came from our site for system and network administrators.

It would have been nice if you had given us more information over the last week to help you resolve this. – James Watt May 3 '10 at 16:48
up vote 5 down vote accepted

Possibly a malfunctioning keyboard. Consider contacting HP for a keyboard replacement. This will be covered if the laptop is still under warranty. Most laptop keyboards are $45-$100 USD and can be replaced with ease.

share|improve this answer
What JW said. You can download a Live CD for one of those other operating systems and boot from that CD to test a completely separate OS/boot process if you want, but I suspect your problem is the physical keyboard itself. If the problem persists after booting another OS on CD then you can fairly well rule out software issues. – SuperMagic May 3 '10 at 15:23

You must log in to answer this question.

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