From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: assigned EHCI USB headset not working Date: Thu, 09 Jun 2011 08:53:33 +0200 Message-ID: <4DF06DED.7030604@web.de> References: <4DEF17C1.7000805@web.de> <4DEF6FC9.8040209@redhat.com> <4DF065E9.4070605@web.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig5FC6B1C773DA26008ABB3435" Cc: Gerd Hoffmann , "kvm@vger.kernel.org" To: =?ISO-8859-1?Q?Andr=E9_Weidemann?= Return-path: Received: from fmmailgate02.web.de ([217.72.192.227]:43073 "EHLO fmmailgate02.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752894Ab1FIGxf (ORCPT ); Thu, 9 Jun 2011 02:53:35 -0400 In-Reply-To: <4DF065E9.4070605@web.de> Sender: kvm-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig5FC6B1C773DA26008ABB3435 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2011-06-09 08:19, Andr=E9 Weidemann wrote: > Hi Gerd, >=20 > On 08.06.2011 14:49, Gerd Hoffmann wrote: >> Hi, >> >>> The sound device shows up under Windows7 and drivers are installed >>> automatically. Unfortunately it does not work. All the players I trie= d, >>> did not even start playing the sound file, although they detected the= >>> DirectSound Device. >> >> iso xfer's from usb-linux via ehci are flaky for reasons not yet track= ed >> down. >> >> Any reason why you don't just plug in a virtual sound card? The HDA >> emulation should work fine with win7. >=20 > Using the hda driver was my first attempt. But the result was not very > convincing. When playing mp3s inside the VM, I could hear music coming > from the speakers, but the sound was very choppy and too slow. It was n= o > joy listening to it. Does "export QEMU_AUDIO_DAC_TRY_POLL=3D0" before invoking qemu helps? It depends on your host-side interface. Using ALSA here, it is generally required. Note that this discussion rather belongs on qemu-devel. Jan --------------enig5FC6B1C773DA26008ABB3435 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAk3wbe0ACgkQitSsb3rl5xRfwgCfZtOj0WYzV+0ZOVaGoD2u0WW6 7G8AoLe9EyLj/Y4gVQsbnotd8J9o5B8W =gubX -----END PGP SIGNATURE----- --------------enig5FC6B1C773DA26008ABB3435--