Dirk, sometimes when windows detects new hardware on a write-protected image, it needs to reinstall it on boot. For USB controllers this is usually on a 10-15 minute cycle. It may use a similar service startup cycle for audio hardware. Is your Vista image in 'snapshot=off' mode? Simon ---------------------------------------- > From: dirk.heinrichs@xxxxxxxx > To: kvm@xxxxxxxxxxxxxxx > Subject: Audio starts working several hours after starting Windows Vista guest > Date: Sun, 30 Sep 2012 09:34:06 +0200 > > Hello, > > since a week or two, I have a very strange problem with audio output on a > Windows Vista guest. Right after booting the guest, audio does not work. If I > leave the guest running for some hours (don't know how many, I usually try > again next day), audio output works fine. > > I'm using es1370 emulation, but I get the same results with the other > alternatives, too. > > Guest: Windows Vista SP1 32bit > > Host: Ubuntu 12.10 64bit > % dpkg --list|grep -e kvm -e qemu > ii kvm-ipxe 1.0.0+git-3.55f6c88-0ubuntu5 > all PXE ROM's for KVM > ii qemu-common 1.2.0+noroms-0ubuntu2 > all qemu common functionality (bios, documentation, etc) > ii qemu-kvm 1.2.0+noroms-0ubuntu2 > amd64 Full virtualization on supported hardware > ii qemu-kvm-spice 1.2.0-2012.09-0ubuntu1 > amd64 Full virtualization on amd64 hardware > ii qemu-utils 1.2.0+noroms-0ubuntu2 > amd64 qemu utilities > > Is this a known problem? What could I do to resolve it? > > Thanks... > > Dirk > -- > Dirk Heinrichs <dirk.heinrichs@xxxxxxxx> > Tel: +49 (0)2471 209385 | Mobil: +49 (0)176 34473913 > GPG Public Key C2E467BB | Jabber: dirk.heinrichs@xxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
