fresh install of LM20.2 sound on firefox streaming BAD!

[sandbagger]

just installed LM 20.2 ( 10/14/21) on a machine and the sound started out ok then some kind of echo happened followed by screeching and hisses. I stream from the site https://wgntv.com/on-air/live-streaming/ using firefox 93.0 as installed with LM20.2.

I did some searching on the forums and found the below. It works for few minutes then back to echo, hissing and scratches.

viewtopic.php?t=356764

This machine has always been used as a media device running Ubuntu so I know the hardware and networking is ok.

It's something to do with LM and I don't know how to fix it. Can someone help please.

the setup is the graphics card HDMI is hooked into my tv set's Hdmi slot. I don't have any other audio equipment.

here is the machine spec

Code: Select all

~$  inxi -Fxxxrz
System:    Kernel: 5.4.0-88-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Console: tty 1 dm: LightDM 1.30.0 
           Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04 focal 
Machine:   Type: Desktop System: ECS product: H81H3-M4 v: 1.0 serial: <filter> 
           Mobo: ECS model: H81H3-M4 v: 1.0 serial: <filter> BIOS: American Megatrends v: 4.6.5 date: 06/30/2014 
Battery:   Device-1: hidpp_battery_0 model: Logitech Wireless Touch Keyboard K400 serial: <filter> 
           charge: 50% (should be ignored) rechargeable: yes status: N/A 
CPU:       Topology: Dual Core model: Intel Pentium G3220 bits: 64 type: MCP arch: Haswell rev: 3 L2 cache: 3072 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 11973 
           Speed: 798 MHz min/max: 800/3000 MHz Core speeds (MHz): 1: 798 2: 798 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series] vendor: XFX Pine 
           driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:68f9 
           Display: server: X.org 1.20.11 driver: ati,radeon unloaded: fbdev,modesetting,vesa tty: 238x93 
           Message: Advanced graphics data unavailable in console. Try -G --display 
Audio:     Device-1: Intel 8 Series/C220 Series High Definition Audio vendor: Elite Systems driver: snd_hda_intel v: kernel 
           bus ID: 00:1b.0 chip ID: 8086:8c20 
           Device-2: Advanced Micro Devices [AMD/ATI] Cedar HDMI Audio [Radeon HD 5400/6300/7300 Series] vendor: XFX Pine 
           driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 1002:aa68 
           Sound Server: ALSA v: k5.4.0-88-generic 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Elite Systems driver: r8169 v: kernel 
           port: d000 bus ID: 03:00.0 chip ID: 10ec:8168 
           IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
Drives:    Local Storage: total: 931.51 GiB used: 17.51 GiB (1.9%) 
           ID-1: /dev/sda vendor: Seagate model: ST1000DM003-1ER162 size: 931.51 GiB speed: 3.0 Gb/s rotation: 7200 rpm 
           serial: <filter> rev: CC46 scheme: MBR 
Partition: ID-1: / size: 914.90 GiB used: 17.51 GiB (1.9%) fs: ext4 dev: /dev/sda5 
Sensors:   System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: radeon temp: 31 C 
           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://packages.linuxmint.com uma main upstream import backport #id:linuxmint_main
           2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
           3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
           4: deb http://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
           Active apt repos in: /etc/apt/sources.list.d/protonvpn-stable.list 
           1: deb [signed-by=/usr/share/keyrings/protonvpn-stable-archive-keyring.gpg] https://repo.protonvpn.com/debian stable main
Info:      Processes: 178 Uptime: 6h 30m Memory: 7.71 GiB used: 870.8 MiB (11.0%) Init: systemd v: 245 runlevel: 5 Compilers: 
           gcc: 9.3.0 alt: 9 Shell: bash v: 5.0.17 running in: tty 1 (SSH) inxi: 3.0.38 
dave@tvfront:~$ 

[AZgl1800]

I am now using my E550 ThinkPad, and made sure that all updates were installed, to do so, I had to enable 2 of the optional resources, as it would complain that not ALL applications were available to install Updates.

Once I did that, all of the updates went thru as they should.

I then did a cntl-alt-backspace to get Cinnamon to reload and enable FF from Vs 92.0 to the current version

I then opened the link on WGN and watched the commercials and then it went into the regularly scheduled programming, a Comedy show at the time I write this.

works fine from here.

[AZgl1800]

on this post, I am back on my LM19.3 Cinnamon daily driver laptop, and I opened up Update Manager and noticed that the two options I had to ENABLE on LM20.2 are not needed in 19.3

so, I suggest that you turn them ON and see how that works.

first 19.3

and the 2 options I enabled, I suspect you only need the 1st option, not the 2nd one.

[sandbagger]

First of all EXCELLENT picture. Always happy to see a happy dog who clearly is enjoying life.
second, thank for the heads up on this. I would NEVER have found it in a million years. I am used to just shoving the os onto a machine and just starting to code. Gotta say that this release has been "interesting" so far. This sound issue was going to be the final straw and had me reaching for my trusty backups.
I'm trying to learn a little more about linux but this config stuff is REALLY a pain. We just watched about 2 hours of Kodi and thanks to you and Rene all was well.\

thanks again and give fido a pat from us in Chicago

[AZgl1800]

glad the forum was beneficial for you.

come back and see us again, "real soon now", ya heah?

[sandbagger]

will do and don't forget the pats

[BashBasher]

jjust installed LM 20.2 ( 10/14/21) on a machine and the sound started out ok then some kind of echo happened followed by screeching and hisses. I stream from the site https://wgntv.com/on-air/live-streaming/ using firefox 93.0 as installed with LM20.2.

The following should work as a workaround for the audio issue in Firefox:

In Firefox's about:config, set media.webspeech.synth.enabled to false.

This tweak stops Firefox from launching an audio process called speech-dispatcher.
Speech-dispatcher can trigger a bug in the underlying audio sub system.

It's not a fix for the underlying bug, but it should hopefully work, until a bugfix arrives.

Other discussions about the bug (for reference/history):
A second sound stream plays at the same time? viewtopic.php?f=48&t=353254
sound gets scratchy by random viewtopic.php?f=48&t=349104
Kernel on Mint viewtopic.php?f=90&t=354543

Hope this helps.

[sandbagger]

thanks bashblaster
I'll get right on this when I get back. It's a mystery HOW you spot these kinds of things as there are so many moving parts theses days. I thank you for taking the time and fingers crossed for the fix