Guest audio loss following Windows host suspend
|Reported by:||arQon||Owned by:|
|Guest type:||Linux||Host type:||Windows|
(Similar to, but distinct from, https://www.virtualbox.org/ticket/19267)
Background is here: https://forums.virtualbox.org/viewtopic.php?f=6&t=98365 but I'll put everything important in this ticket.
The bug only occurs on Windows hosts (W10 1909 tested) - Linux hosts are fine.
No amount of disabling/re-enabling Audio in the Manager will return the VM to a working state, but suspending the guest via its own mechanism and then resuming it generally effects recovery, so my (ignorant) gut feel is that something has changed in the timing or behavior VBox's handling of suspend/resume that's caused the audio pieces to not quite sync up (i.e. resumed before ready or etc).
I have some potentially-useful endpoints to reduce the bisection, in the 6.0 branch: LKG is 6.0.12, FKB is 6.0.22. (The bug is also in the 6.1 branch since at least 6.1.6, through to 6.1.10, but I don't have any working versions of 6.1 to provide the other end).
I've posted a VBox.log in the forums, which I can duplicate here (or recreate with 6.1.10 if you prefer) - I'm not sure what the preference is for attachments.