Question on permission

[satimis]

Hi folks,

BLFS 6.1

"alsamixer" can only be evoked as root.

bash-3.00$ which alsamixer

/usr/bin/alsamixer

After running
# chmod u+s /usr/bin/alsamixer

it can be started by all users but a grey window only without colour.

How to only authenticate "satimis" to start it in colour window not all users and how to make it?

TIA

BR
satimis

[burnit]

You should add your user to the audio group (see /etc/groups).

Audio group should be able to read and write on /dev/mixer, so your user (in the group audio) should setup mixer values.

[satimis]

Hi burnit,

Tks for your advice.

I already fixed the problem with following steps;

1)
There was a mistake on following 2 lines on /etc/group

#audio:!:11:satimis
audio:11:satimis

Deleted "audio11:satimis" and amended the 2nd line as "audio:11:satimis"

2)
# chown root:audio /usr/bin/alsamixer

3)
# chmod -c 550 /usr/bin/alsamixer

Now "alsamixer" can be started as "satimis". The remaining minor problem is as "satimis" the vertical bar is black, not colour. Volumn can be adjusted.

As root the bar is coloured. I'm now searching for its cause. Any advice? TIA

BR
satimis