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[Raymond <1390474@xxxxxxxxxxxxxxxxxx>]

+                    if (e->n_channels > 2) {
+                        /* FIXME: In some places code like this is used:
+                         *
+                         *     e->masks[alsa_channel_ids[p]][e->n_channels-1]
+                         *
+                         * The definition of e->masks is
+                         *
+                         *     pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST][2];
+                         *
+                         * Since the array size is fixed at 2, we obviously
+                         * don't support elements with more than two
+                         * channels... */
+                        pa_log_warn("Volume element %s has %u channels. That's too much! I can't handle that!", e->alsa_name, e->n_channels);
+                        return -1;
+                    }
+

http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa
/alsa-mixer.c?id=527078523815587bfd021bc1d10782403e9b3e84


the answer was aleady stated in the patch

you need to change alsa-mixer.h

-pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST][2];
+pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST][8];


and


-  if (e->n_channels > 2) {
+ if (e->n_channels > 8) {

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1390474

Title:
  "Volume element PCM has 6 channels. That's too much!" - PA doesn't
  support elements with more than two channels

Status in pulseaudio package in Ubuntu:
  Incomplete

Bug description:
  When connecting the Terratec PHASE26 in 16/48 mode (6 channels) I get the error "Volume element PCM has 6 channels. That's too much! I can't handle that!"  and the card fails to show up in Sound Settings.
  Everything is fine with 24/48 mode (2 channels).

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