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From: <bp@www.zefox.net>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Pi5 audio oddities
Date: Sat, 27 Jul 2024 22:59:35 -0000 (UTC)
Organization: A noiseless patient Spider
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druck <news@druck.org.uk> wrote:
> On 27/07/2024 03:26, bp@www.zefox.net wrote:
>> A Pi5 running bookworm has suddenly lost sound. The last update
>> was a couple days ago and seemed unrelated to sound in any way.
>> 
>> Right now audio output is via "Digital Stereo (HDMI) Output".
>> There's no sound from YouTube or the New York Times and I still
>> hear a burp when I power cycle the speaker system, so
> 
> [Snip]
> 
>> Anybody seen this sort of mischief?
> 
> Not on a Pi 5, but I've had a Pi 4 which once or twice lost sound if it 
> was rebooted remotely when the TV it was connected to was off, even 
> though the /boot/config.txt file told it to always use HDMI audio. The 
> only thing that worked was to reboot with the TV on.
> 
> ---druck

I too have had trouble with a Pi4 losing sound but up to now I've
blamed it on the HDMI monitor, since power cycling the monitor
brought back the sound. Tried that in the present instance with
the Pi5 but it didn't help.

Next I tried a warm reboot, but the machine got stuck with a black
screen, though I think it was coming up to multi-user. It would
answer a ping and refuse an ssh connection, per the configuration.

Eventually I did a power cycle and played with audio under rapsi-
config, now sound works and at least a couple of warm reboots were
successful as well. At the moment, a Chromium browser tab is stuck
and won't scroll, but four other tabs behave normally. 

I guess maybe it's just Bookworm/Wayland being buggy.

Thanks for writing,

bob prohaska