Audio 7.1 con AVR: solo salida frontal izquierda y derecha

Estoy tratando de enviar canales de múltiples pcm en mi Onkyo Receiver TX-RZ900 en Fedora 25 con salida Intel Skylake HDMI.

Tuve algunas informaciones útiles sobre esta publicación. ¿Cómo configuro PulseAudio para sonido envolvente 7.1 a través de HDMI? pero desafortunadamente las salidas de testing del parlante solo en los canales Frontal Izquierdo y Frontal Derecho

El AVR informa los canales correctos:

[liveuser@localhost-live ~]$ cat /proc/asound/card0/eld#2.1 monitor_present 1 eld_valid 1 monitor_name TX-RZ900 connection_type HDMI eld_version [0x2] CEA-861D or below edid_version [0x3] CEA-861-B, C or D manufacture_id 0xcb3d product_id 0xf91 port_id 0x0 support_hdcp 0 support_ai 1 audio_sync_delay 0 speakers [0x4f] FL/FR LFE FC RL/RR RLC/RRC sad_count 9 sad0_coding_type [0x1] LPCM sad0_channels 2 sad0_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000 sad0_bits [0xe0000] 16 20 24 sad1_coding_type [0x1] LPCM sad1_channels 8 sad1_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000 sad1_bits [0xe0000] 16 20 24 sad2_coding_type [0x2] AC-3 sad2_channels 8 sad2_rates [0xe0] 32000 44100 48000 sad2_max_bitrate 640000 sad3_coding_type [0x7] DTS sad3_channels 8 sad3_rates [0xc0] 44100 48000 sad3_max_bitrate 1536000 sad4_coding_type [0x9] DSD (One Bit Audio) sad4_channels 6 sad4_rates [0x40] 44100 sad5_coding_type [0xa] E-AC-3/DD+ (Dolby Digital Plus) sad5_channels 8 sad5_rates [0xc0] 44100 48000 sad6_coding_type [0xb] DTS-HD sad6_channels 8 sad6_rates [0x1ec0] 44100 48000 88200 96000 176400 192000 sad7_coding_type [0xb] DTS-HD sad7_channels 8 sad7_rates [0x1ec0] 44100 48000 88200 96000 176400 192000 sad8_coding_type [0xc] MLP (Dolby TrueHD) sad8_channels 8 sad8_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000 

aplay -l reports: (Solo Card 0 Device 7 emite algo de sonido)

 [root@localhost-live pulse]# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: CA0132 Analog [CA0132 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 1: CA0132 Digital [CA0132 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 

command de testing de altavoz que solo da salida a 2 canales frontales:

 [liveuser@localhost-live ~]$ pasuspender -- speaker-test -c 8 -twav -Dplughw:0,7 speaker-test 1.1.1 Playback device is plughw:0,7 Stream parameters are 48000Hz, S16_LE, 8 channels WAV file(s) Rate set to 48000Hz (requested 48000Hz) Buffer size range from 16 to 262144 Period size range from 8 to 131072 Using max buffer size 262144 Periods = 4 was set period_size = 65536 was set buffer_size = 262144 0 - Front Left 4 - Front Center 1 - Front Right 7 - Rear Right 3 - Rear Right Center 2 - Rear Left Center 6 - Rear Left 5 - LFE 

/ sys / class / drm / card0-DP-1 / edid:

 [liveuser@localhost-live card0-DP-1]$ hexdump -C edid 00000000 00 ff ff ff ff ff ff 00 3d cb 91 0f 00 00 00 00 |........=.......| 00000010 00 19 01 03 80 34 1d 78 2a 60 41 a6 56 4a 9c 25 |.....4.x*`A.VJ.%| 00000020 12 50 54 2f cf 00 01 01 81 40 81 80 95 00 95 0f |.PT/.....@......| 00000030 b3 00 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c |.......:..q8-@X,| 00000040 45 00 09 25 21 00 00 1e 8c 0a d0 8a 20 e0 2d 10 |E..%!....... .-.| 00000050 10 3e 96 00 09 25 21 00 00 18 00 00 00 fc 00 54 |.>...%!........T| 00000060 58 2d 52 5a 39 30 30 0a 20 20 20 20 00 00 00 fd |X-RZ900. ....| 00000070 00 38 4c 1e 53 11 00 0a 20 20 20 20 20 20 01 b4 |.8L.S... ..| 00000080 02 03 38 f0 4c 01 02 03 04 05 10 11 12 13 14 1e |..8.L...........| 00000090 1f 3b 09 7f 07 0f 7f 07 17 07 50 3f 06 c0 4d 02 |.;........P?..M.| 000000a0 00 57 06 01 5f 7e 03 5f 7e 01 67 7f 01 83 4f 00 |.W.._~._~.g...O.| 000000b0 00 66 03 0c 00 14 00 80 01 1d 00 72 51 d0 1e 20 |.f.........rQ.. | 000000c0 6e 28 55 00 09 25 21 00 00 1e 8c 0a d0 90 20 40 |n(U..%!....... @| 000000d0 31 20 0c 40 55 00 09 25 21 00 00 18 00 00 00 00 |1 .@U..%!.......| 000000e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000000f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ec |................| 00000100 

Cualquier ayuda sobre este problema sería muy apreciada, he pasado muchas horas tratando de resolver esto sin suerte hasta el momento …