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Date: Thu, 23 Apr 2009 10:32:52 +0200
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Subject: Re: [Qemu-devel] Re: Question about KVM and PC speaker
Message-ID: <20090423083252.GB5277@const.bordeaux.inria.fr>
References: <49EF69BC.90300@gmx.de> <49F01C8D.1010203@web.de>
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To: Jan Kiszka <jan.kiszka@web.de>
Cc: Simon Bienlein <s.bienlein@gmx.de>, Qemu-devel@nongnu.org

Jan Kiszka, le Thu 23 Apr 2009 09:45:17 +0200, a écrit :
> Simon Bienlein wrote:
> > I hear the beep if I am in the bash of the wirtsystem and press the
> > backspace key on the start of the line. The PC speaker works therefore.
> > 
> > How can I configure KVM so that the PC speaker also works in the VM?
> > Supports the BIOS PC Speaker beeps?
> 
> Nope, not yet. Neither QEMU nor KVM (with its in-kernel handling of the
> involved timer chip) translates the guest's speaker settings into
> anything audible. But that should be feasible.

Err, have you read the first paragraph?  The speaker does work.

> > The environment variable QEMU_AUDIO_DRV=alsa is set and I run KVM with
> > the option -soundhw all.
> 
> You may succeed with this approach when redirecting the guest's console
> beep to the sound card of your virtual machine.

The problem is not the guest's console beep: as mentioned above, that
one does work. The one that doesn't is the syslinux beep of the debian
installer CD, which is supposed to be implemented in the bios.

Samuel