[arch-general] sound in gnome, none in xfce

[message]

On 2014-04-13 21:53, arch-general-request at archlinux.org wrote:
> ------------------------------
> 
> Message: 6
> Date: Sun, 13 Apr 2014 23:06:29 +0200
> From: Bjoern Franke <bjo at nord-west.org>
> Subject: Re: [arch-general] sound in gnome, none in xfce
> 
> Am 13.04.2014 22:55, schrieb message:
>> Readers,
>> 
>> In gnome, sound is enabled and can be adjusted via the keyboard 
>> function
>> keys (e.g. fn + ^). This doesn't work in xfce. What is the cause in 
>> this
>> different behaviour and any ideas how to solve please?
>> 
> 
> Next time read the docs:
> https://wiki.archlinux.org/index.php/Xfce#Keyboard_Volume_Buttons
> 

After following the instructions, received an error dialogue window:

"Failed to launch shortcut "XF86AudioRaiseVolume"
Failed to execute child process "amixer" (No such file or directory)"

The sound is enabled when starting the 'audio mixer' (alsamixer) 
graphical tool and adjusting sound using the mouse.