[lug] Locking the volume control at %100

[Quentin Hartman]

Nope, not selinux. Once upon a time most audio operations happened via
/dev/dsp or similar psuedo-files. I poked around a little bit and that
seems to no longer be the case (at least on Ubuntu), so the permissions
thing is probably not an option.

QH


On Tue, Jun 3, 2014 at 9:18 PM, Bruce Long <qstream at gmail.com> wrote:

> Hmmm. I'd like to know how it would be done with permissions. Are you
> talking about seLinux?
>
> The cron job would probably be easier given the way I hear people talk
> about seLinux as if it were an arcane art.
>
> Good memory, BTW. The actual command differed by only two characters:
>
>     "amixer sset Master 100%"
>
>
>
>
> On Tue, Jun 3, 2014 at 4:53 PM, Quentin Hartman <qhartman at gmail.com>
> wrote:
>
>> I don't know about locking the control, maybe some permission changes on
>> the audio devices? It's hackish and ugly, but maybe a cronjob that maxes
>> the volume via one of the many cli-mixer utilities would do the trick?  As
>> I recall the syntax for alsamixer is something like "amixer set master
>> 100%". Should double-check that though. As you allude to though, audio has
>> gotten complicated enough that I'm not sure you'll find a universally
>> reliable fix.
>>
>>
>> On Tue, Jun 3, 2014 at 3:51 PM, Bruce Long <qstream at gmail.com> wrote:
>>
>>> One of the people who call me for tech help accidentally mutes the
>>> volume sometimes. With all the volume controls in different apps / web
>>> pages and on the panel it is hard for this (elderly) person to fix the
>>> problem himself. Once a month or so I get called because the sound is
>>> broken and it's usually that the volume is muted or that the speakers are
>>> plugged into the microphone jack. Is there a way to lock all volume
>>> controls to %100? Then he can use the physical knob on the external
>>> speakers. Simply removing the volume control applet isn't enough by itself
>>> because other apps will change the volume and random key presses would
>>> cause it to be be muted via function key.
>>>
>>> He is using Mint LMDE (because it automatically upgrades itself.)
>>>
>>> Bruce
>>> --
>>> Give me immortality or give me death!
>>>
>>> _______________________________________________
>>> Web Page:  http://lug.boulder.co.us
>>> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>>> Join us on IRC: irc.hackingsociety.org port=6667 channel=#hackingsociety
>>>
>>
>>
>> _______________________________________________
>> Web Page:  http://lug.boulder.co.us
>> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>> Join us on IRC: irc.hackingsociety.org port=6667 channel=#hackingsociety
>>
>
>
>
> --
> Give me immortality or give me death!
>
> _______________________________________________
> Web Page:  http://lug.boulder.co.us
> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> Join us on IRC: irc.hackingsociety.org port=6667 channel=#hackingsociety
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lug.boulder.co.us/pipermail/lug/attachments/20140604/532a81b2/attachment.html>