Bug 1074820 - Pulseaudio delays sound compared to activity on screen when using sound via HDMI
Pulseaudio delays sound compared to activity on screen when using sound via HDMI
Status: RESOLVED UPSTREAM
Classification: openSUSE
Product: openSUSE Tumbleweed
Classification: openSUSE
Component: Sound
Current
Other Other
: P5 - None : Normal (vote)
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Assigned To: Takashi Iwai
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Reported: 2018-01-05 13:00 UTC by Freek de Kruijf
Modified: 2018-02-14 16:14 UTC (History)
0 users

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Description Freek de Kruijf 2018-01-05 13:00:00 UTC
I use a HDMI connection to my monitor with speakers. When playing a score in Musescore the sound is delayed by about 1 second compared to the the activity on the screen. The note in score which is played is highlighted.
When changing the sound device in the tab "I/O" in Musescore from PulseAudio to ALSA audio, sound and picture are in sync. This suggests that pulseaudio is delaying the sound. "I/O" is reached by selecting Edit->Preferences...
I noticed earlier also this type of delay when playing a video in Firefox, however currently this is no longer the case. It was most apparent when a person is speaking in the video.
Comment 1 Takashi Iwai 2018-01-05 13:26:58 UTC
Could you report rather to upstream bugzilla?
Comment 2 Freek de Kruijf 2018-01-05 14:26:07 UTC
(In reply to Takashi Iwai from comment #1)
> Could you report rather to upstream bugzilla?

Done. https://bugs.freedesktop.org/show_bug.cgi?id=104501
Comment 3 Takashi Iwai 2018-02-14 10:26:02 UTC
Let's track on upstream.
Comment 4 Freek de Kruijf 2018-02-14 16:14:26 UTC
When changing the sound device in the tab "I/O" in Musescore from PulseAudio to ALSA audio, sound and picture are in sync.