Comment 42 for bug 936539

I: [pulseaudio] alsa-sink.c: Hardware volume ranges from inf dB to -inf dB.

  element master, dBmin and dBmax not set as e->emerged_mask is zero

     pa_log_debug("Probe of element '%s' succeeded (volume=%d, switch=%d, enumeration=%d).", e->alsa_name, e->volume_use, e->switch_use, e->enumeration_use);

        if (ignore_dB)
            e->has_dB = false;

        if (e->volume_use == PA_ALSA_VOLUME_MERGE) {

            if (!p->has_volume) {
                p->min_volume = e->min_volume;
                p->max_volume = e->max_volume;
            }

            if (e->has_dB) {
                if (!p->has_volume) {
                    for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
                        if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
                            min_dB[t] = e->min_dB;
                            max_dB[t] = e->max_dB;
                            path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
                        }

                    p->has_dB = true;