System audible beep Post: 302483254

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Operating Systems Linux Slackware System audible beep Post 302483254 by Corona688 on Friday 24th of December 2010 06:23:01 PM

12-24-2010

Registered User

Quote:

Originally Posted by slak0

It does beep during boot so it is working somewhere somehow.

That's just the system POST beep.

Quote:

Can someone show me how to get bash echo to produce a beep from the system speaker?

First of all, you have to be logged into a local console for that to work. xterm or ssh won't cut it.

Second, your kernel has to be configured to use it. device drivers -> input device support -> miscellaneous devices -> <M> PC Speaker support which should produce CONFIG_INPUT_PCSPKR=m in your .config file.

Third, the module actually has to be loaded.

Code:

$ modprobe pcspkr

Fourth, depending on your system and soundcard, you may need to enable the pcspkr channel in your mixer settings.

You might also try installing the beep utility. While this won't fix your terminals, you can use it to at least confirm the kernel is using the PC speaker...

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LEARN ABOUT OPENSOLARIS

flash

beep(3XCURSES)						  X/Open Curses Library Functions					    beep(3XCURSES)

NAME

       beep, flash - activate audio-visual alarm

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include  -L	/usr/xpg4/lib 
	-R  /usr/xpg4/lib  -lcurses  [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       int beep(void);

       int flash(void);

DESCRIPTION

       The  beep()  and  flash()  functions  produce an audio and visual alarm on the terminal, respectively.  If the terminal has the capability,
       beep() sounds a bell or beep and  flash() flashes the screen.  One alarm is substituted for another if the terminal does  not  support  the
       capability  called  (see   terminfo(4)  bel  and  flash capabilities). For example, a call to beep() for a terminal without that capability
       results in a flash.

RETURN VALUES

       These functions always return OK.

ERRORS

       None.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libcurses(3XCURSES), terminfo(4), attributes(5), standards(5)

SunOS 5.11							    5 Jun 2002							    beep(3XCURSES)