My stable configuration file for Volumio looks like this now:
1.
Basics:
initramfs volumio.initrd
gpu_mem=16
max_usb_current=1
disable_splash=1
2.
Sound card:
dtparam=audio=on
dtparam=i2c_arm=on
dtoverlay=hifiberry-dacplus
dtoverlay=lirc-rpi:gpio_in_pin=26
3.
WaveShare screen:
max_usb_current=1
