Created attachment 113112
High latency because of underruns
Nah, after all prealloc is just snake oil. I now have latency of 66 ms
which is unacceptable.
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
FLAT_VOLUME DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 9959
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100%
/ 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 65.83 ms
max request: 11 KiB
max rewind: 344 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 3
linked by: 3
configured latency: 66.00 ms; range is 66.00 .. 2000.00 ms
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 6
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "VT1708S Analog"
alsa.id = "VT1708S Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xfe400000 irq 33"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1c20"
device.product.name = "6 Series/C200 Series Chipset Family High
Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "VIA VT1708S"
alsa.components = "HDA:11060397,10438415,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output: Analog Output (priority 9900, latency offset 0
usec, available: unknown)
properties:
analog-output-lineout: Line Out (priority 9900, latency offset
0 usec, available: yes)
properties:
analog-output-headphones: Headphones (priority 9000, latency
offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output>
Any suggestions outside of forcing a fixed latency?
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https://bugs.launchpad.net/bugs/996906
Title:
periodic audio skips with Intel HDA
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