After upgrading my NVIDIA graphics drivers, I somehow lost sound on my computer, with the sound settings indicating "dummy output". As implied, sound was working prior to this change on 24.04.01. Hardware is as indicated
me@comp:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07)
00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31)
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
00:17.0 SATA controller: Intel Corporation Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode] (rev 31)
00:1b.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #17 (rev f1)
00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #1 (rev f1)
00:1c.2 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #3 (rev f1)
00:1d.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Z170 Chipset LPC/eSPI Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-V (rev 31)
01:00.0 VGA compatible controller: NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GM204 High Definition Audio Controller (rev a1)
03:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 04)
I tried a number of potential fixes that are helpfully available online, notably :https://linuxgenie.net/fix-no-sound-issue-ubuntu/, and Fixing No Sound (Dummy Output) Issue in Ubuntu 24.04, specifically from this:
- sudo apt install --reinstall pulseaudio
- sudo apt install --reinstall alsa-base alsa-utils
- sudo apt install pulseaudio
- pulseaudio -k && sudo alsa force-reload
all of which ran successfully but did not address the issue. I also tried reverting the NVIDIA drivers to 535 (via the GUI additional drivers tool) without success. The most significant insight thus far was running:
me@comp:~$ inxi -A
Audio:
Device-1: Intel 100 Series/C230 Series Family HD Audio driver: N/A
Device-2: NVIDIA GM204 High Definition Audio driver: N/A
API: ALSA v: k6.8.0-58-generic status: kernel-api
Server-1: PipeWire v: 1.0.5 status: active
which seems to indicate no sound driver?
Running
me@comp:~$ sudo modprobe snd-hda-intel
[sudo] password for andy:
modprobe: FATAL: Module snd-hda-intel not found in directory /lib/modules/6.8.0-58-generic
seems to indicate module cannot be found, but with
me@comp:~$ dpkg -S snd-hda-intel
linux-modules-extra-6.8.0-55-generic: /lib/modules/6.8.0-55-generic/kernel/sound/pci/hda/snd-hda-intel.ko.zst
linux-modules-extra-6.8.0-57-generic: /lib/modules/6.8.0-57-generic/kernel/sound/pci/hda/snd-hda-intel.ko.zst
Does something just need configuring here? I am hitting the limits of my Linux knowledge and am reticent to poke much more without guidance! Any help appreciated.