The situation is like this: I have 3 EndevourOS systems on 3 Dell Latitudes of different ages. The OSes come from the very first Endeavour iso, applying only the updates/upgrades since then. All 3 systems are identical (cloned).
Now, I don’t really know when it happened, as FF is not my default, but I should say everything was fine 10 days ago.
What’s puzzling me, is that the no sound issue occurs ONLY on 1 of my systems. & this happens to be my main one. The other 2 weren’t affected. Any help & guidance most appreciated.
Thanks in advance
Some system info etc would be handy here I think
https://discovery.endeavouros.com/forum-log-tool-options/how-to-include-systemlogs-in-your-post/2021/03/
Here they are:
[anarch@anarch ~]$ inxi -Fxxc0z
System:
Kernel: 6.6.54-1-lts arch: x86_64 bits: 64 compiler: gcc v: 14.2.1
Desktop: KDE Plasma v: 6.1.5 tk: Qt v: N/A wm: kwin_wayland dm: SDDM
Distro: EndeavourOS base: Arch Linux
Machine:
Type: Laptop System: Dell product: Latitude E6510 v: 0001
serial: <superuser required> Chassis: type: 9 serial: <superuser required>
Mobo: Dell model: N/A serial: <superuser required> BIOS: Dell v: A04
date: 07/08/2010
Battery:
ID-1: BAT0 charge: 45.4 Wh (100.0%) condition: 45.4/57.7 Wh (78.6%)
volts: 12.1 min: 11.1 model: Samsung SDI DELL PT43699 serial: <filter>
status: full
Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard
serial: <filter> charge: 55% (should be ignored) status: discharging
CPU:
Info: dual core model: Intel Core i5 M 520 bits: 64 type: MT MCP
arch: Westmere rev: 5 cache: L1: 128 KiB L2: 512 KiB L3: 3 MiB
Speed (MHz): avg: 1197 min/max: 1199/2400 boost: enabled cores: 1: 1197
2: 1197 3: 1197 4: 1197 bogomips: 19163
Flags: ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
Device-1: Intel Core Processor Integrated Graphics vendor: Dell driver: i915
v: kernel arch: Gen-5.75 ports: active: eDP-1 empty: DP-1, DP-2, DP-3,
HDMI-A-1, HDMI-A-2, HDMI-A-3, VGA-1 bus-ID: 00:02.0 chip-ID: 8086:0046
Device-2: Logitech HD Webcam C615 driver: snd-usb-audio,uvcvideo type: USB
rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 2-1.2:4 chip-ID: 046d:082c
Display: wayland server: X.org v: 1.21.1.13 with: Xwayland v: 24.1.2
compositor: kwin_wayland driver: X: loaded: modesetting
alternate: fbdev,intel,vesa dri: crocus gpu: i915 display-ID: 0
Monitor-1: eDP-1 res: 1366x768 size: N/A
API: EGL v: 1.5 platforms: device: 0 drv: crocus device: 1 drv: swrast
gbm: drv: crocus surfaceless: drv: crocus wayland: drv: crocus x11:
drv: crocus
API: OpenGL v: 4.5 compat-v: 2.1 vendor: intel mesa v: 24.2.4-arch1.1
glx-v: 1.4 direct-render: yes renderer: Mesa Intel HD Graphics (ILK)
device-ID: 8086:0046 display-ID: :1.0
API: Vulkan Message: No Vulkan data available.
Audio:
Device-1: Intel 5 Series/3400 Series High Definition Audio
vendor: Dell Latitude E6510 driver: snd_hda_intel v: kernel bus-ID: 00:1b.0
chip-ID: 8086:3b56
Device-2: Logitech HD Webcam C615 driver: snd-usb-audio,uvcvideo type: USB
rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 2-1.2:4 chip-ID: 046d:082c
API: ALSA v: k6.6.54-1-lts status: kernel-api
Server-1: PipeWire v: 1.2.5 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
4: pw-jack type: plugin
Network:
Device-1: Intel 82577LM Gigabit Network vendor: Dell Latitude E6510
driver: e1000e v: kernel port: 7040 bus-ID: 00:19.0 chip-ID: 8086:10ea
IF: eno1 state: down mac: <filter>
Device-2: Intel Centrino Advanced-N 6200 driver: iwlwifi v: kernel pcie:
speed: 2.5 GT/s lanes: 1 bus-ID: 02:00.0 chip-ID: 8086:422c
IF: wlan0 state: up mac: <filter>
RAID:
Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci
v: 3.0 bus-ID: 00:1f.2 chip-ID: 8086:282a
Drives:
Local Storage: total: 465.76 GiB used: 86.4 GiB (18.6%)
ID-1: /dev/sda vendor: Samsung model: SSD 870 EVO 500GB size: 465.76 GiB
speed: 3.0 Gb/s serial: <filter>
Partition:
ID-1: / size: 68.87 GiB used: 23.81 GiB (34.6%) fs: ext4 dev: /dev/sda1
ID-2: /home size: 96.33 GiB used: 62.6 GiB (65.0%) fs: ext4 dev: /dev/sda2
Swap:
Alert: No swap data was found.
Sensors:
System Temperatures: cpu: 50.0 C mobo: N/A sodimm: SODIMM C
Fan Speeds (rpm): cpu: 2393
Info:
Memory: total: 8 GiB available: 7.69 GiB used: 2.21 GiB (28.7%)
Processes: 195 Power: uptime: 4h 10m wakeups: 0 Init: systemd v: 256
default: graphical
Packages: pm: pacman pkgs: 1428 Compilers: clang: 18.1.8 gcc: 14.2.1
Shell: Bash v: 5.2.37 running-in: konsole inxi: 3.3.36
[anarch@anarch ~]$
That was the culprit, thanks. Now, I wonder why this has happened with Firefox, Librewolf & Floorp at the same time & on one out of three laptops!!! 
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