Multi output sound device and 5.1 sound

Hi,
I have following setup:
TV is connected to the Mac Mini, with HDMI Cable.
Amplifier (5.1) is connected to the Mac Mini, with Toslink cable.
In addition to that TV can pass sound to amplifier through another toslink cable.
Currently my setup works perfectly:
When I set sound output to HDMI, TV recognizes 5.1 sound (also it can be passed to the amplifier).
When I set sound output to digital audio, amplifier gets 5.1 sound.
Note: 5.1 sound works when I play movies from VLC. In audio setup (in preferences and midi setup) there is only possibility to have 2 channels.
What I want to do is to have the same output to both devices.
I created multi output device, for HDMI and digital audio, and devices get only stereo sound.

Thank for your reply, however it didn't solve my problem.
I can send surround sound over hdmi to TV, and then TV can send it to the amplifier.
What I can not do is to send surround sound directly from Mac Mini to TV (via HDMI) + amplifier (via toslink) - so that I can switch off TV and have sound on amplifier.
I also have the multichannel options options greyed out (as described in this thread: https://discussions.apple.com/message/19584051). But what I am talking about is sending sound as Dolby (which can be done with VLC), not PCM.

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snd_hda_codec_hdmi 24121 4
snd_hda_codec_realtek 195514 1
snd_usb_audio 93493 5
snd_hda_intel 23375 5
snd_usbmidi_lib 18936 1 snd_usb_audio
snd_hda_codec 89160 3 snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_hdmi
snd_rawmidi 19458 1 snd_usbmidi_lib
snd_seq_device 5300 1 snd_rawmidi
snd_hwdep 6389 2 snd_hda_codec,snd_usb_audio
snd_pcm 74780 5 snd_hda_codec,snd_hda_intel,snd_usb_audio,snd_hda_codec_hdmi
snd_page_alloc 7153 2 snd_pcm,snd_hda_intel
snd_timer 19544 1 snd_pcm
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drwxr-xr-x 2 root root 60 Mar 4 21:11 by-id
drwxr-xr-x 2 root root 100 Mar 4 21:11 by-path
crw-rw---- 1 root audio 116, 3 Mar 4 21:11 controlC0
crw-rw---- 1 root audio 116, 9 Mar 4 21:11 controlC1
crw-rw---- 1 root audio 116, 18 Mar 4 21:11 controlC2
crw-rw---- 1 root audio 116, 8 Mar 4 21:11 hwC1D0
crw-rw---- 1 root audio 116, 17 Mar 4 21:11 hwC2D0
crw-rw---- 1 root audio 116, 16 Mar 4 21:11 hwC2D1
crw-rw---- 1 root audio 116, 15 Mar 4 21:11 hwC2D2
crw-rw---- 1 root audio 116, 14 Mar 4 21:11 hwC2D3
crw-rw---- 1 root audio 116, 2 Mar 4 21:36 pcmC0D0c
crw-rw---- 1 root audio 116, 7 Mar 4 21:36 pcmC1D0c
crw-rw---- 1 root audio 116, 6 Mar 4 21:46 pcmC1D0p
crw-rw---- 1 root audio 116, 5 Mar 4 21:36 pcmC1D1p
crw-rw---- 1 root audio 116, 4 Mar 4 21:36 pcmC1D2c
crw-rw---- 1 root audio 116, 13 Mar 4 21:11 pcmC2D3p
crw-rw---- 1 root audio 116, 12 Mar 4 21:11 pcmC2D7p
crw-rw---- 1 root audio 116, 11 Mar 4 21:11 pcmC2D8p
crw-rw---- 1 root audio 116, 10 Mar 4 21:11 pcmC2D9p
crw-rw---- 1 root audio 116, 1 Mar 4 21:11 seq
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Yesterday, when I logged on to one of my sons' computers - there was no sound coming out of the speackes on the HP w22 monitor. I checked to make sure it was plugged in and it was. According to one of my sons, the problem occurred a couple of weeks ago.
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Ianethan wrote:
OG,
I downloaded the drive and restarted the computer. I checked on the control panel under sounds and audio devices and it still shows no audio device. Is there something else I need to do?
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