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[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1855893 Title: Properly let PCM leave suspended state when hardware doesn't support PCM resume Status in HWE Next: New Status in pulseaudio package in Ubuntu: New Bug description: [Impact] Headset Mic plugged into Dell WD19TB dock stops working after suspend/resume. [Fix] According to alia-lib's document, to make PCM properly leave suspended state, we only use snd_pcm_resume() if hardware support PCM resume. For hardware that doesn't support PCM resume, like snd-usb-audio on WD19TB dock, we should use snd_pcm_prepare(), snd_pcm_drop() or snd_pcm_drain() to make device leave suspended state. This patch defaults to use snd_pcm_drop() to achieve the goal. [Test] 1. See if microphone on snd-usb-audio works in gnome-control-center/cheese. 2. Suspend/resume. 3. See if microphone still works in those apps. I can the issue is fixed after each suspend/resume cycle. [Regression Potential] Low. This fix makes PCM suspend/resume more reliable. No functional change intended. I also don't find any regression during some smoke test. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1855893/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
