[mythtv-users] HDMI

[Ashu Desai]

On Fri, May 11, 2018 at 1:18 PM stinga <stinga+mythtv at wolf-rock.com> wrote:

> On 11/05/18 17:04, Ashu Desai wrote:
>
>
>
> On Fri, May 11, 2018 at 3:45 AM stinga <stinga+mythtv at wolf-rock.com>
> wrote:
>
>> G'day all,
>>
>> I have just been forced to upgrade due to a crashed disk and decided to
>> make a few changes.
>>
>> I have managed to get everything working except audio.
>>
>> Previously I had audio over spdif and video over hdmi, this restricted
>> the quality and channels I could have (I believe)
>>
>> I now have audio and video over hdmi via an amp
>>
>> mythtv ---> amp ---> sony tv
>>
>> But I only get 2 channels.
>>
>
> Are you using alsamixer? Did you go into it and make sure you changed the
> 2 channel to 6 channel?
>
>
>
>>
>> When I select the audio in frontend setup it can see the Sony TV and
>> says it has two channels, which correct, but I thought it should see the
>> amp which has more.
>>
>> Any ideas?
>>
>> [root at mythtv ~]# aplay -l
>> **** List of PLAYBACK Hardware Devices ****
>> card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
>>    Subdevices: 1/1
>>    Subdevice #0: subdevice #0
>> card 0: Intel [HDA Intel], device 1: ALC888 Digital [ALC888 Digital]
>>    Subdevices: 1/1
>>    Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
>>    Subdevices: 1/1
>>    Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
>>    Subdevices: 1/1
>>    Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
>>    Subdevices: 1/1
>>    Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
>>    Subdevices: 1/1
>>    Subdevice #0: subdevice #0
>>
>>
>> [root at mythtv ~]# aplay -L
>> null
>>      Discard all samples (playback) or generate zero samples (capture)
>> default:CARD=Intel
>>      HDA Intel, ALC888 Analog
>>      Default Audio Device
>> sysdefault:CARD=Intel
>>      HDA Intel, ALC888 Analog
>>      Default Audio Device
>> front:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Analog
>>      Front speakers
>> surround40:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Analog
>>      4.0 Surround output to Front and Rear speakers
>> surround41:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Analog
>>      4.1 Surround output to Front, Rear and Subwoofer speakers
>> surround50:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Analog
>>      5.0 Surround output to Front, Center and Rear speakers
>> surround51:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Analog
>>      5.1 Surround output to Front, Center, Rear and Subwoofer speakers
>> surround71:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Analog
>>      7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
>> iec958:CARD=Intel,DEV=0
>>      HDA Intel, ALC888 Digital
>>      IEC958 (S/PDIF) Digital Audio Output
>> hdmi:CARD=NVidia,DEV=0
>>      HDA NVidia, HDMI 0
>>      HDMI Audio Output
>> hdmi:CARD=NVidia,DEV=1
>>      HDA NVidia, HDMI 0
>>      HDMI Audio Output
>> hdmi:CARD=NVidia,DEV=2
>>      HDA NVidia, HDMI 0
>>      HDMI Audio Output
>> hdmi:CARD=NVidia,DEV=3
>>      HDA NVidia, HDMI 0
>>      HDMI Audio Output
>>
>> [root at mythtv etc]# mythbackend --version
>> Please attach all output as a file in bug reports.
>> MythTV Version : v0.25.3-49-gb5adf03
>> MythTV Branch : fixes/0.25
>> Network Protocol : 72
>> Library API : 0.25.20130225-1
>> QT Version : 4.8.2
>> Options compiled in:
>>   linux profile use_hidesyms using_alsa using_oss using_backend
>> using_bindings_perl using_bindings_python using_bindings_php
>> using_crystalhd using_dvb using_firewire using_frontend using_hdhomerun
>> using_ceton using_hdpvr using_iptv using_ivtv using_joystick_menu
>> using_libcrypto using_libdns_sd using_libxml2 using_libudf using_lirc
>> using_mheg using_opengl_video using_qtwebkit using_qtscript using_qtdbus
>> using_v4l2 using_x11 using_xrandr using_xv using_bindings_perl
>> using_bindings_python using_bindings_php using_mythtranscode
>> using_opengl using_vaapi using_vdpau using_ffmpeg_threads using_live
>> using_mheg using_libass using_libxml2 using_libudf
>>
>>
>> alsamixer does not show anything useful for my nvidia HDMI card
>
> < S/PDIF >S/PDIF 1 S/PDIF 2 S/PDIF 3
>
>
If you open alsamixer, and then press F6 to make sure you have the correct
card, then as you to to the "right" you will see Channel after the S/PDIF
(s). Trying to attach a pic - see if you have this. You basically have to
go "up" to increase the # of channels.

https://ibb.co/efHLdy

Hope this helps.
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