I have a computer with Ubuntu 16.04 connected through HDMI to a TV. A couple of days ago it started to make popping/crackling noises at random intervals (average ~5s). While playing video (with vlc or any other video player), the popping stops, but the audio stutters at approximately the same intervals.
Some information that I've aquired:
- The problem does not arise if I start my computer from "off"-state. Only if I resume from suspend (but this is what I want to do most of the time, out of practical reasons).
- The popping only starts after I play a video. The problem persists even if I then close vlc, but doing
pulseaudio --killin a terminal stops the popping until I put on a new video.
- It seems that the popping does not start by playing a youtube-video. But the audio does stutter.
- Having PulseAudio Volume Control open actually supresses the pops, but the audio still stutters when I play a video.
Possible solutions I have looked at:
- https://ubuntuforums.org/showthread.php?t=2230750: adding
options snd-hda-intel vid=8086 pid=8ca0 snoop=0to
/etc/modprobe.d/alsa-base.conf. Did not help.
- Popping noise from laptop speakers: Setting "INTEL_AUDIO_POWERSAVE" to "false" in
/usr/lib/pm-utils/power.d/intel-audio-powersave. Did not help. Also tried the other suggested solutions in the same thread.
- Slight sound "crackle/pop" in 14.04: Messing with the
/etc/pulse/daemon.conf. Did not help.
Does anyone know how to address this problem?