Beeping the internal pc speaker.

stf92 · 06-21-2010, 02:40 AM

linux kernel 2.6, Sklackware 12.0

Hi:
I have the suspicion that the internal pc speaker does not work. Is there a linux application to beep the speaker? Or perhaps somebody could send me a small script to make it beep. Thanks in advance.

bathory · 06-21-2010, 02:54 AM

Hi,

Make sure pcspkr is loaded into the kernel

Code:

lsmod|grep pcspkr

If not, you have to load it:

Code:

modprobe pcspkr

Then run from CLI

Code:

echo -e "\07"

Regards

stf92 · 06-21-2010, 03:02 AM

Thank you bathory. The module is loaded but echo -e "\07" does not produce an audible sound. I'd like to test with several frequencies, because these speaker have a very uneven frequency response curve. I think I'll boot DOS and make a short program and test. Regards.

bathory · 06-21-2010, 03:08 AM

You should run it from CLI (e.g. from runlevel 3) and not from an xterm. X use xset to manage bell
You can then use

Code:

setterm -bfreq XXX
setterm -blength XXX

to change frequency and duration