Not sure if I misread the situation. But have you ruled out a software issue? Maybe some inadvertent change to your configuration. Try booting from a USB to see if same behavior.
I first noticed when viewing YouTube. So, I tried "audio test" from
System Setting (KDE here). You get a popup, with "front left" and
"front right" buttons. And, sure enough, depending on headphone, only
mono was coming out, left side only, right side only, or to both sides.
On 2025-09-21 23:46, Karen Lewellen wrote:
> William
> May I ask what is providing the audio for you?
> Before suggesting some possible causes, I would appreciate a better
> picture of your setup.
> Karen
>
>
>
> On Sun, 21 Sep 2025, William Park via Talk wrote:
>
>> I'm using 3.5mm jack, not USB. I don't think any internal contact is
>> broken, because it's the same via front "headphone" or rear "line-out".
>>
>> On 2025-09-21 22:14, Don Tai wrote:
>>> Do you use an audio jack or USB? If an audio jack, it is possible
>>> that the
>>> contacts are dirty and need cleaning. You can try a little electrical
>>> contact cleaner. But this should not affect the stereo/mono settings.
>>>
>>> On Sun, 21 Sept 2025 at 22:11, William Park via Talk
>>>
>>> My audio used to work properly in stereo. All of sudden, it
>>> stopped
>>> working in stereo. Depending on headphones,
>>> - only 1 side has sound, or
>>> - both sides have sound, but it's mono (ie. same sound on
>>> both side).
>>>
>>> Anyone experienced this?
>>> How long before the whole motherboard dies?
>>> ------------------------------------
>>> Description: GTALUG Talk
>>> This message archived at
>>>
>>
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Description: GTALUG Talk