I can't make my pc speakers beep

I don't know why, but when I issue echo -e '\a' or beep. I get only some sound, set in my OS (Ubuntu Karmic). I tried to run these on Lenovo Y510KA and Lenovo S10-2. Is there another way to make my laptops beep?..

... sorry for the obvious....

Play an audio file (mp3) that is your favorite "beep" and direct the output to the sound card pushing the PC speakers ....

The kernel module pcspkr is no longer loaded by default (blacklisted).

Test by running:

sudo modprobe pcspkr

The try again.

The persistent fix is to remove pcspkr from the blacklist in /etc/modeprobe.d

Hello I am using Debian Lenny.

You can directly write something to your sound device which in my case is /dev/dsp (same in yours for ubuntu , I feel)

echo 'blah blah blah....' > /dev/dsp

You will hear different patterns of sound for different inputs.

Regards,
Gaurav.