Re: "Dummy output" instead of sound card options, was working, now gone.

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> On 5 Sep 2022, at 18:32, stan via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> 
> On Sun, 4 Sep 2022 14:44:11 -0400
> Ted Roche <tedroche@xxxxxxxxx> wrote:
> 
>>> On Sun, Sep 4, 2022 at 1:19 AM stan via users
>>> <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>> 
>>> On Sat, 3 Sep 2022 11:19:27 -0400
>>> Ted Roche <tedroche@xxxxxxxxx> wrote:  
>>>> 
>>>> Basic troubleshooting pointers on what to search for would be
>>>> appreciated.  
>>> 
>>> aplay -l
>>> should show any devices that alsa recognizes.  If alsa doesn't
>>> recognize a device, you won't be able to use it.  If alsa knows
>>> about the device, I would then use pavucontrol to activate it by
>>> setting it as default.  
> 
>> aplay -l only seems to find HDMI devices:
> 
> I think that is your problem.  If alsa doesn't recognize the device,
> when it used to, then there is probably a hardware error.  To be sure,
> you should check when alsa-lib was installed,
> rpm -qi alsa-lib

I would expect that the hardware support is in the kernel.
I thought alsa-lib did not have hardware specific code.
Maybe try booting an older kernel to see the device comes back?

Barry


> If that was around the time your device stopped working, it could be a
> regression in the library.  They do happen, but it isn't common.  You
> can try a downgrade to an earlier alsa-lib by downloading the packages
> you have installed from here,
> https://koji.fedoraproject.org/koji/packageinfo?packageID=410
> and install them with
> dnf -C downgrade [list of binary rpms]
> in the directory to where you downloaded them.
> 
> If it is a discrete sound device, you could try reseating it, in case
> it is no longer making good contact.  Do you have another sound device
> you can install as a check?
> 
> If you run 
> journalctl -b0
> to look at the last boot, what does it show for sound device
> initialization?  Is there any kind of error when it tries to activate
> the device that is no longer working?
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