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I was saying the libsdl packages have a USE flag "sound" which builds the |
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sound module for sdl. So if qemu makes any calls to the sound module not |
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pure alsa calls, that might be causing your issue. |
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|
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Wabes USE flag output shows he's building sdl with the "sound" use flag |
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enabled and not just alsa alone. |
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|
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On Thu, Dec 24, 2015, 22:26 <wabenbau@×××××.com> wrote: |
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|
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> waltdnes@××××××××.org wrote: |
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> |
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> > On Thu, Dec 24, 2015 at 10:48:28PM +0000, Ian Bloss wrote |
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> > > Libsdl and libsdl2 built with sound use flag on host? |
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> > |
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> > I didn't bother enabling alsa except for packages that actually need |
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> > it. I've enabled it for libsdl, but not for sdl2, because I didn't |
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> > realize libsdl2 even existed. According to equery, the only package |
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> > pulling in libsdl2 is qemu, and that's because I set the flag. If I |
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> > remove the "alsa2" flag from qemu, will it work properly with "alsa" |
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> > alone? |
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> |
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> On my host system I use alsa and no pulseaudio. However it doesn't |
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> make any difference if I set the alsa USE-flag for qemu or not. |
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> |
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> I don't know if qemu runs flawless without sdl2 USE-flag. But you can |
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> easily test this. |
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> |
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> Btw. Since I reverted from qemu-2.5.0 back to qemu-2.4.1-r2, qemu |
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> hangs no longer when I specify ac97, hda or es1370 as sound hardware |
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> emulation. But I have to start the xfce mixer application on the |
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> guest OS after the desktop is loaded. If I don't do this, then one |
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> core on my host is always at 100% load and qemu is slow and sometimes |
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> doesn't respond for some seconds. But no error message appears on |
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> guest or host. |
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> Strange is, that the guest OS doesn't show a high load but only the |
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> host OS. After I started the xfce-mixer app on guest OS, everything |
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> is smooth and host load count normalizes. |
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> |
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> I now use qemu with "-soundhw es1370" and am have automated the start |
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> of the mixer app. With this, sound is working fine. |
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> |
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> As I already said, when I use sb16 or gus then I have no sound at all. |
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> Only ac97, hda and es1370 are working for me. Maybe this has something |
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> to do with the guest OS. |
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> |
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> Here are the USE-flags that I use for qemu, libsdl and libsdl2. |
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> |
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> app-emulation/qemu-2.4.1-r2 aio caps curl fdt filecaps gtk gtk2 jpeg lzo |
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> ncurses nfs nls opengl pin-upstream-blobs png python sasl sdl sdl2 seccomp |
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> spice threads usb uuid vde vhost-net vnc xattr xfs -accessibility -alsa |
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> -bluetooth -debug -glusterfs -infiniband -iscsi -numa -pulseaudio -rbd |
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> -selinux -smartcard -snappy -ssh -static -static-softmmu -static-user |
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> -systemtap -tci -test -tls -usbredir -virtfs -vte -xen |
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> |
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> media-libs/libsdl-1.2.15-r9 X alsa dga fbcon joystick opengl oss sound |
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> video xv -aalib -custom-cflags -libcaca -nas -pulseaudio -static-libs |
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> -tslib -xinerama |
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> |
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> media-libs/libsdl2-2.0.3-r200 X alsa dbus joystick opengl oss sound |
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> threads udev video xscreensaver -altivec -custom-cflags -fusionsound -gles |
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> -haptic -nas -pulseaudio -static-libs -tslib -wayland -xinerama |
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> |
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> -- |
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> Regards |
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> wabe |
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> |
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> |
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