Недавно всё было нормально, но после недавних обновлений вместо звука из колонок идут заикания, отдалённо напоминающие звук.
При переключении на переднюю панель проблемы исчезают.
Заикания идут исключительно на передний канал, на средниий, задний и центральный звук поступает нормально.
Гнездо исправно, в других осях через него поступает нужный звук.
Подскажите кто-нибудь куда копать, позязя
$ dmesg|grep sound
[ 9.518835] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input17
[ 9.518909] input: HDA Intel PCH Line Out Side as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16
[ 9.518939] input: HDA Intel PCH Line Out CLFE as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15
[ 9.518965] input: HDA Intel PCH Line Out Surround as /devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[ 9.518997] input: HDA Intel PCH Line Out Front as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[ 9.519055] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[ 9.519117] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 9.519146] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 9.992030] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input21
[ 9.992107] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input20
[ 9.992185] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19
[ 9.992253] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18
$ lspci -k | grep -i -A2 «multimedia\|audio»
00:1b.0 Audio device: Intel Corporation Device 8ca0
Subsystem: Gigabyte Technology Co., Ltd Device a182
Kernel driver in use: snd_hda_intel
--
01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)
Subsystem: eVga.com. Corp. Device 2771
Kernel driver in use: snd_hda_intel
Проблема была в https://bugs.launchpad.net/ubuntu/ source/alsa-driver/ bug/1388436
