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Re: New HP Notebook - no sound from speakers connected via RCA jack

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On Mon, 5/5/2025 2:02 PM, Dennis wrote:
> I'm having a problem with my new Win 11 HP notebook. Internal speakers
> work great, but when I connect anything via the 3.5 RCA jack (external
> speakers, headphones) on the side of the case I get nada. All sound
> continues to go thru the built-in speakers.
> 
> An hour on HP support chat was frustrating ... I gave up.
> 
> Checked all the usual suspects. Not muted. Volume up. Headphones (2
> pair) work just fine on an older Win 10 HP notebook. Looked at the
> various Sound Settings but I don't see anything obvious. Rebooted
> multiple times. Uninstalled Realtek driver (reboot reinstalled it).
> 
> Is there supposed to be a setting somewhere to tell Win to use the jack
> instead of the internal speakers?
> 
> I'm probably missing something obvious.
> 
> I'd appreciate any suggestions. I could switch to USB or Bluetooth ...
> put this is personal now.
> 

The drivers have had a hard life. They are living on the
street now, no fixed address, bumming for quarters.

RealTek used to provide the drivers directly, but the drivers seem
to be living in a (VHD?) ontainer now, isolated from the kernel in Ring0.
NVidia was the first to implement this, as directed by Microsoft.
Other companies may not have the experience doing crazy stuff like that.

*******

Originally, my RealTek sound was 7.1 , which means I could drive a $500
set of computer speakers.

But Microsoft has been trying to keep the real drivers off the OS,
and using "generlc" "half baked" drivers. If I were to use the
sound settings that come from the speaker icon on the right hand
Task Bar, I would be of the impression I had laptop audio, with one speaker
jack and one headphone jack. But this is an un-necessary deception.

If you go to Start : Run, and you execute control.exe (or just the word "control"),
you get the legacy control panels. There is a Sound control panel in there.

   [Picture]

    https://i.postimg.cc/qgV6mKXL/Win11-Real-Tek-Sound.gif

Now my desktop fancy audio 7.1, it is behaving like a laptop
audio, and some of the channels are missing. Never fear...
The configure button expands the picture further.

   [Picture]

    https://i.postimg.cc/xT2K3rxS/Win11-Real-Tek-Sound-All-Channel.gif

Audio chips all have 48 pins, the cheap ones have two stereo pair,
the others have eight or more stereo pair. Naturally, a two stereo pair
chip, is never going to have all the entries a higher channel count
chip has.

*******

A full-sized audio codec chip on a desktop, has eight stereo widgets total.
Six for the rear panel. Two for the front panel (or for a laptop jack pair).

This has some pictures (covers "2x3" and "2x3 minus 1" type back panel setups)

https://download.gigabyte.com/FileList/Manual/mb_manual_z590-897audio_e_v2.pdf

                                         Front-Panel-Audio
       FrontLR  \                        -----------------
                 \
       SideLR     \                      Headphone  <===  a.k.a "Second Output"
                   \___ 7.1 out
       RearLR      /    rear jacks       Microphone
                  /
       CenterSub /
                                         Can drive at least two headphones at once,
       LineInLR  \                       one on lime green "frontLR" and then "Second Output"
                  \___ Rear inputs       on the front of the computer.
       MicInLR    /

The jacks are all retaskable (with some minor exceptions).

An Input can be used as an Output. On the 2x3 minus 1, they take advantage
of this, by retasking one input jack as an output for the SideLR pair of speakers.

With the eight widgets, the CODEC cannot drive eight headphones at once, as it
would overheat. It is generally guaranteed to drive 32 ohm Lime Green
and the 32 ohm front Panel HeadPhone, each with a suitable amp on the widget.
The chip is not strong enough to drive un-amplified speakers (bookshelf),
like a 4 ohm speaker or a 2 ohm speaker. Only the higher impedance 32 ohms
is support (headphones).

Output channels without amps, are 600 ohm drive, which works fine with
10000 ohm analog input computer speakers.

   Paul

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Thread

New HP Notebook - no sound from speakers connected via RCA jack Dennis <nobody@nowhere.invalid> - 2025-05-05 14:02 -0400
  Re: New HP Notebook - no sound from speakers connected via RCA jack ArchiPit <Bruram48CheOreSono@LeTreDiNotteVirgilio.it> - 2025-05-05 19:38 +0200
  Re: New HP Notebook - no sound from speakers connected via RCA jack VanguardLH <V@nguard.LH> - 2025-05-05 16:30 -0500
    [SOLVED] Re: New HP Notebook - no sound from speakers connected via RCA jack Dennis <nobody@nowhere.invalid> - 2025-05-06 07:06 -0400
  Re: New HP Notebook - no sound from speakers connected via RCA jack Paul <nospam@needed.invalid> - 2025-05-05 17:49 -0400
  Re: New HP Notebook - no sound from speakers connected via RCA jack Frank Slootweg <this@ddress.is.invalid> - 2025-05-06 10:26 +0000

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