CPU at 100% when opening mic in a visio-conference

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mohican
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CPU at 100% when opening mic in a visio-conference

Post by mohican »

Hi,
I got a new laptop few weeks ago. All is fine except when I try to participate in a visio conference.
When I open my microphone, within a few secons CPU climbs to 100% and stays there as long as there is sound going in. My sound is distorted for the listeners.
No problem if the mic is closed (image is fine).

Problem is the same with Firefox or Chromium.
Problem is the same if I use webRTC (Jitsi Meet / BigBlueButton) or Zoom from browser.

Any Idea ?

Here is the inpux from inxi

Code: Select all

System:    Kernel: 5.4.0-73-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.8.6 
           wm: muffin dm: LightDM Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: Notebook product: NL40_50GU v: N/A serial: <filter> Chassis: 
           type: 10 serial: <filter> 
           Mobo: Notebook model: NL40_50GU serial: <filter> UEFI: INSYDE v: 1.07.07 
           date: 04/13/2020 
Battery:   ID-1: BAT0 charge: 21.0 Wh condition: 38.8/36.2 Wh (107%) volts: 11.3/11.4 
           model: Notebook BAT serial: <filter> status: Discharging 
CPU:       Topology: Quad Core model: Intel Pentium Silver N5030 bits: 64 type: MCP 
           arch: Goldmont Plus rev: 8 L2 cache: 4096 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 8755 
           Speed: 1129 MHz min/max: 800/3100 MHz Core speeds (MHz): 1: 1094 2: 1094 3: 1094 
           4: 1094 
Graphics:  Device-1: Intel UHD Graphics 605 vendor: CLEVO/KAPOK driver: i915 v: kernel 
           bus ID: 00:02.0 chip ID: 8086:3184 
           Display: x11 server: X.Org 1.20.9 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1920x1080~60Hz 
           OpenGL: renderer: Mesa Intel UHD Graphics 605 (GLK 3) v: 4.6 Mesa 20.2.6 
           direct render: Yes 
Audio:     Device-1: Intel vendor: CLEVO/KAPOK driver: snd_hda_intel v: kernel bus ID: 00:0e.0 
           chip ID: 8086:3198 
           Sound Server: ALSA v: k5.4.0-73-generic 
Network:   Device-1: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: 1040 bus ID: 02:00.0 
           chip ID: 8086:2723 
           IF: wlp2s0 state: up mac: <filter> 
Drives:    Local Storage: total: 57.62 GiB used: 10.87 GiB (18.9%) 
           ID-1: /dev/mmcblk0 model: SLD64G size: 57.62 GiB serial: <filter> 
Partition: ID-1: / size: 55.97 GiB used: 10.86 GiB (19.4%) fs: ext4 dev: /dev/mmcblk0p2 
USB:       Hub: 1-0:1 info: Full speed (or root) Hub ports: 9 rev: 2.0 chip ID: 1d6b:0002 
           Device-1: 1-3:2 info: Intel type: Bluetooth driver: btusb rev: 2.0 chip ID: 8087:0029 
           Device-2: 1-6:3 info: Realtek RTS5129 Card Reader Controller type: <vendor specific> 
           driver: rtsx_usb,rtsx_usb_ms,rtsx_usb_sdmmc rev: 2.0 chip ID: 0bda:0129 
           Device-3: 1-7:4 info: Chicony Chicony USB2.0 Camera type: Video driver: uvcvideo 
           rev: 2.0 chip ID: 04f2:b685 
           Hub: 2-0:1 info: Full speed (or root) Hub ports: 7 rev: 3.0 chip ID: 1d6b:0003 
Sensors:   System Temperatures: cpu: 36.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http: //mirrors.evowise.com/linuxmint/packages ulyssa main upstream import backport
           2: deb https: //fr.archive.ubuntu.com/ubuntu focal main restricted universe multiverse
           3: deb https: //fr.archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
           4: deb https: //fr.archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
           5: deb http: //security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb http: //archive.canonical.com/ubuntu/ focal partner
Info:      Processes: 219 Uptime: 42m Memory: 3.35 GiB used: 1.06 GiB (31.7%) Init: systemd v: 245 
           runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Client: Unknown python3.8 client inxi: 3.0.38 
Thanks
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Currently on Linux Mint Xfce 21 64 bits + Mint Cinnamon 21 for testing + Ubuntu 22.04 for testing.
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mohican
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Re: CPU at 100% when opening mic in a visio-conference

Post by mohican »

I have made several tests with Jitsi Meet on Firefox, with different live GNU/Linux systems :
  • Ubuntu 20 : no problem CPU around 60%
  • Mint 20.1 Xfce : CPU around 85% (45% without the camera), sound is ok
  • Mint 20.1 Cinnamon : CPU at 100% even without the camera, sound heavily distorted
So clearly we have a Mint problem here :shock: + a Cinnamon problem :shock:
Currently on Linux Mint Xfce 21 64 bits + Mint Cinnamon 21 for testing + Ubuntu 22.04 for testing.
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mohican
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Re: CPU at 100% when opening mic in a visio-conference

Post by mohican »

I installed Mint Xfce 20.1 (instead of Cinnamon) and now the results are the same as with Cinnamon : 97% CPU and heavily distorted sound ! (strange that it worked better from live USB key :shock: )
Currently on Linux Mint Xfce 21 64 bits + Mint Cinnamon 21 for testing + Ubuntu 22.04 for testing.
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mohican
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Re: CPU at 100% when opening mic in a visio-conference

Post by mohican »

Finally I installed Ubuntu 20.04.
At first try, CPU doesn't go over 60%
But later - after installing updates - it also reaches 100% even with default profile :roll:

I tryed different web browsers (Chromium and Falkon did not recognize the camera, Midori is not compatible with Jitsi Meet).
Eventually I got the best result with Opera : CPU is at 100% but image and sound are not distorted.
Currently on Linux Mint Xfce 21 64 bits + Mint Cinnamon 21 for testing + Ubuntu 22.04 for testing.
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MrEen
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Re: CPU at 100% when opening mic in a visio-conference

Post by MrEen »

Hi mohican,

Considering the updates eventually lead to the same issue, I'd try the 5.11 kernel if you haven't already. There are newer sound bits in that kernel versus the 5.4 kernel, and some things get backported to 5.4 where they might be causing a conflict.
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mohican
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Re: CPU at 100% when opening mic in a visio-conference

Post by mohican »

Thank you for your suggestion.
However I have the same bad results with kernel 5.11 (testing Ubuntu 20.04.3 live).

The only moment where it worked was with Ubuntu 20.04 fresh install (kernel 5.4), however it does not work well with Mint 20 which is also coming with Kernel 5.4.
It's not possible at the moment to figure out what update messed things out.

I'll stick with Vivaldi browser (cpu at 100% but sound and image are ok).
Currently on Linux Mint Xfce 21 64 bits + Mint Cinnamon 21 for testing + Ubuntu 22.04 for testing.
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