no beep any more
smithi at nimnet.asn.au
Thu Jul 28 11:08:18 UTC 2016
In freebsd-questions Digest, Vol 634, Issue 3, Message: 21
On Wed, 27 Jul 2016 06:13:35 +0200 Matthias Apitz <guru at unixarea.de> wrote:
> El d?a Tuesday, July 26, 2016 a las 04:02:25PM -0600, Warren Block escribi?:
> > I think it's more likely that the Chromebook has been cost-reduced to
> > not have a hardware beeper.
> I have two of these Acer C720 Chromebooks. One is still beeping and the
> other only in the coreboot splash screen, and was beeping in FreeBSD
> before. I do not see anything which supports your idea.
I've been following this thread with interest.
>From a later message from the list archive (not here yet) you say:
> b) let away X11, and use as test cases only:
> 1. it should beep on key backspace while cursor is on prompt
> 2. it should beep on a second ESC in editor vi
> 3. it should beep on the shell command: printf "\7"
I don't use vi, but 1 and 3 work here fine both from a VT and within
KDE, however I have KDE send 'beep' notifications rather than speaker.
You seem to assume that something's broken in FreeBSD - which may be the
case - but it's also possible that the speaker hardware on the non-
beeping one is just broken, especially as device speaker didn't work.
Usually the hardware for these in laptops is a simple piezo speaker,
commonly with red and blue wires, likely driven by a single TTL or CMOS
buffer. While piezo speakers are pretty hard (but not impossible) to
destroy, I've had a laptop where one wire has become detached, so if
it's not too hard to get in there to check, that may be worthwhile .. if
so it's likely a simple fix, either by soldering or replacement.
Another possibility is that it's (become?) disabled in BIOS settings?
To confirm it isn't (or is) a FreeBSD problem, try booting from an older
version memstick in 'live CD' mode, from where a simple backspace at the
console prompt should quickly confirm that, one way or t'other.
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