Trouble with lossy compression

[Adriano Moura <adriano.lols@xxxxxxxxx>]

I've been trying to use a virtual machine over wi-fi but I'm having trouble activating the lossy compression method in spice. I can reach about 50mbps but that does not cut with lossless compression while playing a video. I've tried all command switches for qemu related to spice compression methods, but no such luck. Here is an excerpt of the machine's xml config:

  <graphics type='spice' autoport='yes' listen='0.0.0.0'>
    <listen type='address' address='0.0.0.0'/>
  </graphics>
[...]
  <qemu:commandline>
    <qemu:arg value='-spice'/>
    <qemu:arg value='image-compression=auto-glz,streaming-video=all,jpeg-wan-compression=always,zlib-glz-wan-compression=auto,playback-compression=on'/>
  </qemu:commandline>

Tried different values and checked if qemu's process is carrying those arguments. (it did)

Very occasionally the spice connection will start with lossy compression enabled (as if it's actually honoring my settings), but as soon as I reconnect, it falls back to lossless.

I'm running an updated ArchLinux install. Here are some packages that may be of interest:

community/libvirt-glib 0.2.3-1
extra/spice 0.12.7-1
extra/spice-protocol 0.12.11-1
community/spice-glib 0.32-1
community/spice-gtk3 0.32-2
extra/qemu 2.6.0-1
core/linux 4.6.3-1

Tried with multiple clients: spicy, remote-viewer, aSPICE (android) and vinagre

The VM was generated with virt-viewer/libvirtd

Any tip would be welcome!

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