update link qemu documentation non web.archive

[pve-docs.git] / qm.adoc

diff --git a/qm.adoc b/qm.adoc
index 0d9c10e56feec8d56f83659c70af8fe2a52fbd9b..b84de9ea9f8751ed69afd57aa7e9958dde167da9 100644 (file)
--- a/qm.adoc
+++ b/qm.adoc
@@ -203,7 +203,7 @@ either the *raw disk image format* or the *QEMU image format*.
  format does not support thin provisioning or snapshots by itself, requiring
  cooperation from the storage layer for these tasks. It may, however, be up to
  10% faster than the *QEMU image format*. footnote:[See this benchmark for details
- http://events.linuxfoundation.org/sites/events/files/slides/CloudOpen2013_Khoa_Huynh_v3.pdf]
+ https://events.static.linuxfound.org/sites/events/files/slides/CloudOpen2013_Khoa_Huynh_v3.pdf]
  * the *VMware image format* only makes sense if you intend to import/export the
  disk image to other hypervisors.
 
@@ -776,9 +776,8 @@ shutdown or stopped. Open connections will still persist, but new connections
 to the exact same device cannot be made anymore.
 
 A use case for such a device is the Looking Glass
-footnote:[Looking Glass: https://looking-glass.hostfission.com/] project,
-which enables high performance, low-latency display mirroring between
-host and guest.
+footnote:[Looking Glass: https://looking-glass.io/] project, which enables high
+performance, low-latency display mirroring between host and guest.
 
 [[qm_audio_device]]
 Audio Device
@@ -796,11 +795,18 @@ Supported audio devices are:
 * `intel-hda`: Intel HD Audio Controller, emulates ICH6
 * `AC97`: Audio Codec '97, useful for older operating systems like Windows XP
 
-NOTE: The audio device works only in combination with SPICE. Remote protocols
-like Microsoft's RDP have options to play sound. To use the physical audio
-device of the host use device passthrough (see
-xref:qm_pci_passthrough[PCI Passthrough] and
-xref:qm_usb_passthrough[USB Passthrough]).
+There are two backends available:
+
+* 'spice'
+* 'none'
+
+The 'spice' backend can be used in combination with xref:qm_display[SPICE] while
+the 'none' backend can be useful if an audio device is needed in the VM for some
+software to work. To use the physical audio device of the host use device
+passthrough (see xref:qm_pci_passthrough[PCI Passthrough] and
+xref:qm_usb_passthrough[USB Passthrough]). Remote protocols like Microsoft’s RDP
+have options to play sound.
+
 
 [[qm_virtio_rng]]
 VirtIO RNG