Stuttering during gameplay (FPS drop + sound breaking)

[kamikazechaser]

Your system information

• System information from steam (Steam -> Help -> System Information) in a gist: https://gist.github.com/kamikazechaser/ada3c85b12718abd3bd548db1dbc2801

• Have you checked for system updates?: [Yes/No]: Yes

• Are you using the latest stable video driver available for your system? [Yes/No]: Yes

• Have you verified the game files?: [Yes/No]: Yes

Please describe your issue in as much detail as possible:

During gameplay, the game completely stutters, moves like a slideshow. Reconnecting does not seem to fix it. THE FPS counters usually drops from like 50+ to 20 and it keeps going up and down really fast. The sound also starts breaking. When I open the debug terminal, I see lots of the following lines getting printed (100+)

[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
[SoundSystemLowLevel] Audio device starved 512 samples 
Destroyed

It seems like some gameplay effects trigger this. It happens every few games but not in all of them, but usually a majority of them. I tried changing audio devices in the dota in-game settings or completely turning it off, that did not help.

Other Info

• Sound Server: PulseAudio
• Output of pactl list short links:

1	alsa_output.pci-0000_03_00.6.analog-stereo	module-alsa-card.c	s16le 2ch 44100Hz	SUSPENDED
3	alsa_output.pci-0000_03_00.1.hdmi-stereo	module-alsa-card.c	s16le 2ch 44100Hz	SUSPENDED

• Output of aplay --list-devices:

**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Generic_1 [HD-Audio Generic], device 0: ALC236 Analog [ALC236 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0