I have them with 4 fragments of 1 ms each. tsched=0, device.buffering.buffer_size = "768", device.buffering.fragment_size = "128":
[11966.628405] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72, new_hw_ptr=1177, old_hw_ptr=1105) [11966.636364] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72, new_hw_ptr=1521, old_hw_ptr=1449) [11966.668090] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72, new_hw_ptr=505, old_hw_ptr=433) [11966.671573] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=79, new_hw_ptr=672, old_hw_ptr=593) [11966.676095] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72, new_hw_ptr=889, old_hw_ptr=817) [11966.681435] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=56, new_hw_ptr=1145, old_hw_ptr=1089) [11966.686940] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=80, new_hw_ptr=1409, old_hw_ptr=1329) [11966.689460] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=80, new_hw_ptr=1529, old_hw_ptr=1449) [11966.692775] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=80, new_hw_ptr=1689, old_hw_ptr=1609) [11966.696944] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=80, new_hw_ptr=1889, old_hw_ptr=1809) # cat /sys/module/snd_hda_intel/parameters/align_buffer_size 1 It has also printed this in the PA's log: http://pastebin.com/jAQx6DEZ > ALSA woke us up to write new data to the device, but there was actually nothing to write! Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers. We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/996906 Title: periodic audio skips with Intel HDA To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/996906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
