I have removed tsched=0 from /etc/pulse/default.pa and rebooted and I still got those entries in messages Jan 20 04:28:39 localhost pulseaudio[3035]: module-alsa-sink.c: Increasing wakeu p watermark to 40.00 ms Jan 20 04:29:50 localhost pulseaudio[3035]: module-alsa-sink.c: Increasing wakeu p watermark to 80.00 ms Jan 20 04:31:02 localhost pulseaudio[3035]: module-alsa-sink.c: Increasing wakeu p watermark to 160.00 ms Jan 20 04:31:26 localhost pulseaudio[3035]: module-alsa-sink.c: Increasing wakeu p watermark to 176.60 ms Jan 20 04:32:10 localhost pulseaudio[3035]: module-alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Most l ikely this is an ALSA driver bug. Please report this issue to the PulseAudio dev elopers. Jan 20 04:32:10 localhost pulseaudio[3035]: module-alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Most l ikely this is an ALSA driver bug. Please report this issue to the PulseAudio dev elopers. and worse the sounds skips again -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list