Summary: | Audio lags 5-10 sec even over gigabit network | ||
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Product: | Spice | Reporter: | gvenkat |
Component: | spicec (deprecated) | Assignee: | Spice Bug List <spice-bugs> |
Status: | RESOLVED FIXED | QA Contact: | |
Severity: | major | ||
Priority: | medium | ||
Version: | unspecified | ||
Hardware: | All | ||
OS: | Linux (All) | ||
Whiteboard: | |||
i915 platform: | i915 features: |
Description
gvenkat
2011-05-11 02:26:10 UTC
This has become annoying enough to be not usable at all for anything with audio. I did some for empirical testing to see where the problem may be. Here are some observations: 1. When the audio starts to lag, the lag varies. Sometimes, it happens right at the Windows logon sound, sometimes later. But once it happens, the audio is consistently offset by that delay for further use, ie., there is no "catching up" possible even if you leave the guest and host on with no further audio sounds. 2. If I move to a different client machine and start spice client from there for the same guest desktop, the delay continues at that new client. This seems to suggest that the problem is at the host/guest end, not the client end. This client move could be to the host itself so that removes any network issues as being the problem. 3. To narrow it down between the guest and the host spice server, I bring up another VM guest and test. This seems to exhibit the same delay (not 100% sure about this but this test case should be tried). If this is consistent, then the problem would likely be in the spice host server, rather than in any guest drivers. I am running the 0.8.1 version of spice-server on OpenSuse 11.4 with KVM 0.14 as mentioned earlier. Anyone care about this? Any suggestion on what other empirical testing I can do to isolate it? Am I the only one with this problem? I am able to reproduce this on three different hardware running the same configuration. To add to information, I have noticed that there is an initial audio that comes up for less than a second where it is supposed to and gets cut off and then continues after a delay. The longer the sound stream, longer seems to be the delay. Happens to any and all sound now. Happens to both Windows 7 and Windows XP guests. Even if the client is running on the host, so bandwidth is not the problem. 4 years since this bug was opened, there were a lot of improvements with audio in spice-gtk. I'll close this as fixed but feel free to open a new bug if you experience lag with audio again. |
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