Disable PC Speaker

Toods · 11-02-2007, 05:22 AM

I know that this one has been discussed in various threads but I still cannot kill the PC speaker.

I am using Slackware 'Current' using a custom kernel with 'pcspkr' build as a module. UDEV (v116) is present so I should be able to prevent the 'pcspkr' module loading by putting an entry in the '/etc/modprobe.d/blacklist' file. I have also tried commenting the appropriate 'alias' line in '/etc/modprobe.d/isapnp' but still the module loads at boot.

I know I could rebuild the kernel again without the PC Speaker module, but I would like a solution which avoids this.

Any ideas?.

Bill.

bathory · 11-02-2007, 05:31 AM

You can run

Code:

/bin/setterm -blength 0

to stop pc speaker from beeping

H_TeXMeX_H · 11-02-2007, 05:49 AM

Can't you 'rmmod pcspkr' ?

Toods · 11-02-2007, 06:03 AM

Quote:

Can't you 'rmmod pcspkr' ?

Yes, of course that works, but I would have to manually issue this command at each boot wouldn't I?.

Dinithion · 11-02-2007, 07:30 AM

You could add it to /etc/modprobe.d/blacklist

Toods · 11-02-2007, 07:39 AM

Quote:

Originally Posted by Dinithion

You could add it to /etc/modprobe.d/blacklist

Yes, but see my opening message. It doesn't seem to work when I add the module to the 'blacklist'. Apparently this behaviour was noted by others with v111 of UDEV, but was supposed to be cured in version 116.

Bill.

PJBrs · 11-02-2007, 08:49 AM

Code:

# grep -R pcspkr /etc/
/etc/rc.d/rc.modules:  /sbin/modprobe pcspkr
/etc/rc.d/rc.local:modprobe -r pcspkr
/etc/rc.d/rc.modules-2.6.21.5-smp:  /sbin/modprobe pcspkr
/etc/modprobe.d/isapnp:# alias pnp:dPNP0800 pcspkr
/etc/modprobe.d/blacklist:# also need to comment the pcspkr alias in /etc/modprobe.d/isapnp.
/etc/modprobe.d/blacklist:blacklist pcspkr
/etc/udev/rules.d/50-udev.rules:DRIVERS=="pcspkr", ENV{ID_CLASS}="spkr"

(No, usually I'm not logged in as root

)

Apparently the pcspkr module gets loaded by rc.modules, so you'd need to comment it out there too.

Tell me if that helps; I've been trying to prevent pcspkr from loading too, and ended unloading it in rc.local (as you probably noticed

).

H_TeXMeX_H · 11-02-2007, 09:05 AM

This in why I always don't compile it into the kernel, because it is something that only pisses me off and serves no useful purpose whatsoever.

Toods · 11-02-2007, 09:23 AM

Putting the following code into '/etc/modprobe.d/blacklist' works:

Quote:

install pcspkr /bin/true

I still feel however that this line:

Quote:

DRIVERS=="pcspkr",ENV{ID_CLASS)="spkr"

in '/etc/udev/rules.d/60-persistent-input.rules' has something to do with it being loaded and difficult to blacklist. However, changing or creating udev rules are currently beyond my ability.

Bill.

rworkman · 11-02-2007, 10:23 AM

Post the output of this:

Code:

grep pcspkr /etc/rc.d/rc.modules*

Then this:

Code:

grep pcspkr /etc/modprobe.d/*

Toods · 11-02-2007, 10:51 AM

Quote:

Originally Posted by rworkman

Post the output of this:

Code:

grep pcspkr /etc/rc.d/rc.modules*

Then this:

Code:

grep pcspkr /etc/modprobe.d/*

These are the outputs respectively:

Quote:

/etc/rc.d/rc.modules:#/sbin/modprobe pcspkr

and

Quote:

/etc/modprobe.d/blacklist:blacklist pcspkr
/etc/modprobe.d/isapnp:#alias pnp:dPNP0800 pcspkr

Bill.

wadsworth · 11-02-2007, 11:28 AM

Have you tried editing /etc/inputrc ?
Uncomment the line:
set bell-style none

Worked for me.

Toods · 11-02-2007, 12:04 PM

Quote:

Originally Posted by wadsworth

Have you tried editing /etc/inputrc ?
Uncomment the line:
set bell-style none

Worked for me.

No, I haven't tried that one, but I'm currently using 'install pcspkr /bin/true' added to the '/etc/modprobe.d/blacklist' file and this is working for me.

Bill.