Public bug reported:

Using an RTX 5060 with a fresh install of the latest 25.10 ISO, output
of `nvidia-smi`:

```
Mon Jul 21 13:36:53 2025       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 570.153.02             Driver Version: 570.153.02     CUDA 
Version: 12.8     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile 
Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  
Compute M. |
|                                         |                        |            
   MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 5060 Ti     Off |   00000000:01:00.0  On |            
      N/A |
|  0%   34C    P8             17W /  180W |     894MiB /  16311MiB |      1%    
  Default |
|                                         |                        |            
      N/A |
+-----------------------------------------+------------------------+----------------------+
                                                                                
         
+-----------------------------------------------------------------------------------------+
| Processes:                                                                    
          |
|  GPU   GI   CI              PID   Type   Process name                        
GPU Memory |
|        ID   ID                                                               
Usage      |
|=========================================================================================|
|    0   N/A  N/A            3183      G   /usr/bin/gnome-shell                 
   538MiB |
|    0   N/A  N/A            3914    C+G   ...exec/xdg-desktop-portal-gnome     
     4MiB |
|    0   N/A  N/A            4015      G   /usr/bin/Xwayland                    
     2MiB |
|    0   N/A  N/A            6518      G   ...per --variations-seed-version     
   155MiB |
|    0   N/A  N/A           14306      G   ...slack/196/usr/lib/slack/slack     
    93MiB |
+-----------------------------------------------------------------------------------------+
```

Experienced this issue on 25.04 and tried upgrading to see if it was
resolved, but it is not. No audio output on any of monitors, tried when
plugged in via DisplayPort and via HDMI. Sound works fine on headphones.

This exact setup was used with 24.10 and the sound worked, so it is
definitely a new bug.

ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: alsa-base 1.0.25+dfsg-0ubuntu8
ProcVersionSignature: Ubuntu 6.15.0-4.4-generic 6.15.0
Uname: Linux 6.15.0-4-generic x86_64
ApportVersion: 2.33.1-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 21 13:35:02 2025
InstallationDate: Installed on 2025-07-21 (0 days ago)
InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Daily amd64 (20250720)
MachineType: System manufacturer System Product Name
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/02/2018
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1002
dmi.board.asset.tag: Default string
dmi.board.name: TUF Z370-PLUS GAMING
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1002:bd07/02/2018:br5.12:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnTUFZ370-PLUSGAMING:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug questing wayland-session

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https://bugs.launchpad.net/bugs/2117417

Title:
  No audio output on any monitors for 25.10, Nvidia RTX 5060

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