The power-widgets have no connection selection, so skip the check
in proc output, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 {
        int c, curr = -1;
 
-       if (conn_len > 1 && wid_type != AC_WID_AUD_MIX &&
-           wid_type != AC_WID_VOL_KNB)
+       if (conn_len > 1 &&
+           wid_type != AC_WID_AUD_MIX &&
+           wid_type != AC_WID_VOL_KNB &&
+           wid_type != AC_WID_POWER)
                curr = snd_hda_codec_read(codec, nid, 0,
                                          AC_VERB_GET_CONNECT_SEL, 0);
        snd_iprintf(buffer, "  Connection: %d\n", conn_len);