Re: [ovirt-users] how to debug no audio in guest?

From: "Gianluca Cecchi" <gianluca.cecchi(a)gmail.com&gt; To: "Jakub Niedermertl" <jniederm(a)redhat.com&gt; Cc: "users" <users(a)ovirt.org&gt;, "Michal Skrivanek" <michal.skrivanek(a)redhat.com&gt; Sent: Friday, August 26, 2016 1:58:03 AM Subject: Re: [ovirt-users] how to debug no audio in guest? On Fri, Aug 26, 2016 at 1:37 AM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com&gt; wrote: > On Thu, Aug 25, 2016 at 5:17 PM, Jakub Niedermertl <jniederm(a)redhat.com&gt; > wrote: > >> Hi Gianluca, >> >> QEMU_AUDIO_DRV=none is most probably the problem. Libvirt is supposed to >> set "QEMU_AUDIO_DRV" to "spice" for VMs with graphics. Please make sure >> that the "Optimize for" attribute is set to "Desktop" (in Edit VM dialog) >> and try to shutdown and start the VM again. If the QEMU process will still >> have QEMU_AUDIO_DRV=none set, you can try to set the variable in >> /etc/sysconfig/libvirtd by adding line "QEMU_AUDIO_DRV=spice" and restart >> the libvirtd service. >> >> Jakub >> > > [snip] > > Apparently all is the same in qemu-kvm command lines, comparing c6 with c7 > one, but I don't understand who drives instead the QEMU_AUDIO_DRV=XXX in > log file that is different between the two guests (none vs spice) and btw > also in f24 it is spice: > [snip] Understood! Actually CentOS 6 guest graphics protocol was configured as "SPICE + VNC" and this was the reason of "QEMU_AUDIO_DRV=none" Changing it to "SPICE", now I have "QEMU_AUDIO_DRV=spice" in guest logfile and also test speakers working inside guest. Is this expected? I thought that the "+" would have given an aggregate of functionalities, not a limitation... because initialy I wanted to test both spice and vnc access... If this is the case, probably a note or tool-tip could be useful for the final user because it is not so immediate to correlate video with audio... Gianluca