<div dir="ltr"><div class="gmail_default" style="font-size:large">Tom & NMGLUGers, It may be a BIOS signal. Luckily the beep when I select "Logout" from the GUI is low volume on the Dell desktop I am using now. Running 'top' in commandline while I do the logout shows the same Xorg and webcontent activity I am using and no other new action at the same time. I wonder if it is an Acer bios issue. There are several "Acer Beep" questions posted on the web, but none quite like yours. Have you search the bios setting and checked the status of the bios battery? <br></div><div class="gmail_default" style="font-size:large">Thank you, Ted P<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jun 12, 2022 at 6:43 PM Akkana Peck <<a href="mailto:akkana@shallowsky.com">akkana@shallowsky.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Tom Ashcraft writes:<br>
> But the most glaring and mystifying issue, i.e. the (loudest) beep upon<br>
> unplugging and replugging the exernal power supply/battery charger remains. <br>
> Nothing makes it go away.<br>
<br>
This seems to be an Acer (mis)feature. When I googled<br>
acer netbook loud beep plugging unplugging power<br>
I got lots of hits. It appears that the (mis)feature is called<br>
"Power Control Beep" and many Acers have an option in BIOS to<br>
disable it, so look there first.<br>
<br>
If not, try a web search with your actual machine model (you didn't<br>
tell us the model, you just said "Acer netbook") along with Linux<br>
and "Power Control Beep", and you might find advice specific to<br>
that model.<br>
<br>
Also, some Windows users seem to be seeing a channel in their volume<br>
control settings for "PC Speaker", so maybe Linux has that too. You<br>
might run alsamixer or ulsamixergui to see if alsa has a channel<br>
like that, in which case you could set the volume on that channel<br>
down to zero. If alsamixer or alsamixergui don't see such a channel,<br>
try pavucontrol, which works at a higher level (pulseaudio vs. alsa)<br>
and might show a different set of controls.<br>
<br>
Good luck!<br>
<br>
...Akkana<br>
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