Setup: Latest Volumio 2.5 on a MSD card + Raspberry Pi 3 A+ and Pimoroni pHAT DAC
Problem: Everything works excellent except two problem (1) Volume control which is a inherent problem of pHAT DAC (2) Volumio can not connect to internet for radio/update/album art etc when behind a proxy. Type of proxy that needed to set a IP address and a port no., no username/password required. WIFI without a proxy (phone hot spot) works fine so set ups are fine.
Question/Information needed: Volumio uses a modified version of raspbian. How does Volumio connects to net? It uses wpa_supplicant.conf for keeping wifi user name/password as in regular Raspbian. Regular Raspbian uses /etc/environment file to store proxy setting for browser connection, /etc/apt/apt.conf.d file for apt-get. So more specifically, what service Volumio uses to get album art/ internet radio etc? I tried to put proxy informtion in /etc/environment file created in Volumio, which did not work.
Appreciate more information regarding this.