Ring tones sometimes do not sound
On the devkit, sometimes no sound occurs from ring tones. I noticed in one instance, the default PulseAudio source and sink were not set to the SGTL5000:
purism@pureos:~$ pacmd stat ... Default sink name: alsa_output.platform-sound-wwan.analog-mono Default source name: alsa_input.platform-sound-wwan.analog-mono
whereas ordinarily they would be:
Default sink name: alsa_output.platform-sound.VoiceCall__hw_CARD_sgtl5000__sink Default source name: alsa_input.platform-sound.VoiceCall__hw_CARD_sgtl5000__source
I suspect this may be because the sgtl5000 device isn't present due to other, unknown issues such as I2C bus problems.