Hello.
I'm not sure if asking in qemu-devel is the right thing to do, as I'm
not a QEMU developer, but stefanha in the #qemu IRC channel told me to
do so. :-)
I'm running QEMU 1.6.1 on a 64-bit Gentoo Linux system. The guest
operating system is Windows 7 32-bit. I get multiple identical warning
messages when using the ac97 or hda sound cards:
> ALSA lib
/var/tmp/portage/media-libs/alsa-lib-1.0.27.2/work/alsa-lib-1.0.27.2/src/pcm/pcm.c:7843:(snd_pcm_recover)
underrun occurred
The difference between ac97 and hda is that the former works well, while
the latter causes the sound to be garbled.
/var/tmp/portage is the directory where Portage, the Gentoo package
manager, builds programs. I don't know why it is mentioned in the error
message.
I also don't know if this is an ALSA problem or a QEMU problem.
The command I use is:
> qemu-system-i386 -cpu host -m 1G -k it -drive
file=~/QEMU/windows-7.img,media=disk,index=0 -vga std -net nic -net user
-enable-kvm -display sdl -soundhw ac97
My real sound card is an Intel HD Audio:
> lspci | grep "Audio device"
> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
Controller (rev 02)
How can I debug this problem further?
Thank you.
