Over the past few weeks I've been having some issues with audio latency on my system. To mitigate the effects of the latency, I installed pavucontrol and changed the latency offset to -35ms to try and counter the 35ms delay that was printed by pactl list sinks | grep Latency*. I noticed that if I play a video or audio with pavucontrol open, the latency stays pretty close to 0 but if I close pavucontrol the latency goes back to around 35ms.
A potential cause of the issue could be that on Kubuntu there is already a version of pavucontrol that comes with the system but you are unable to do negative latency offsets with it. I'm unsure whether the pre-installed version potentially overwrites the latency setting when the installed version is closed.
The audio output from lspci -v:
00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
Subsystem: Micro-Star International Co., Ltd. [MSI] 100 Series/C230 Series Chipset Family HD Audio Controller
Flags: bus master, fast devsel, latency 32, IRQ 128
Memory at df320000 (64-bit, non-prefetchable) [size=16K]
Memory at df300000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
Output of pactl list sinks | grep Latency* with pavucontrol open and Youtube video playing:
Latency: 180 usec, configured 40000 usec
Output of pactl list sinks | grep Latency* with pavucontrol closed and Youtube video playing:
Latency: 26158 usec, configured 75000 usec
I am using Pulseaudio 13.99.1 with the 5.4.0-37-lowlatency kernel.
Any suggestions are appreciated. Thanks.
