graceful suspend/resume support

[mixxxbot]

Reported by: ashley-boers
Date: 2018-01-22T05:11:32Z
Status: Confirmed
Importance: Medium
Launchpad Issue: lp1744641

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Mixxx 2.0.0 build 1.12r57772
Lenovo X220 Intel Core i5 2.5GHz 4GB
Windows 10 version 1709 OS Build 16299.192

With Auto DJ enabled Mixxx UI becomes unresponsive when laptop is closed.
Power management is set to only blank screen in this mode, and is configured for 'always-on' operation.
Mixxx outputs to SHOUTcast Server v2.5.5.733/win64, server does not log disconnect errors while Mixxx UI is unresponsive.

I could previously close lid and Auto DJ would operate in my absence.

Behaviour began (at best guess) following December 2017 Feature update to Windows 10, version 1709.

[mixxxbot]

Commented by: rryan
Date: 2018-09-21T01:49:06Z

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I've had issues with this before. We should verify all 3 platforms can suspend/resume gracefully, ideally handling reconnecting to audio interfaces, controllers, broadcasting, etc.

[serge-vk]

Maybe, this is related. Relatively recently (within a month or two), I started having PipeWire hang-ups after resuming the system from sleep when all of a sudden applications that use sound (such as Nautilus or Thunderbird) freeze for a minute or so before going on each time a sound has to be played. wpctl status hangs indefinitely without output. After a while, the audio applet disappears from the status bar. After restarting pipewire service, things work again, but only until the next system suspension. I am running a fully updated Ubuntu 24.04 and I never encountered this problem before.