[mythtv-users] Digital audio Capability grayed out

James Abernathy jfabernathy at gmail.com
Thu Jul 28 14:00:30 UTC 2022


On Thu, Jul 28, 2022 at 9:39 AM James Abernathy <jfabernathy at gmail.com>
wrote:

>
>
> On Thu, Jul 28, 2022 at 8:44 AM Michael T. Dean <mtdean at thirdcontact.com>
> wrote:
>
>> On 07/26/2022 08:54 PM, James Abernathy wrote:
>> > I have v32 installed on a PC connected to an A/V receiver running
>> > Endeavour OS. My audio is set up for HDMI 5.1 and both Plasma KDE
>> > Audio mixer test and cli command "speaker-test" all work perfectly.
>> >
>> > However, In Mythfrontend -> Setup -> Audio Digital Audio Capabilities
>> > is non functional. I cannot select it and the choice for Speaker
>> > Configuration is Stereo only.
>> >
>> > What am I missing to enable the 5.1 audio?
>> >
>>
>> My best guess--without any information, as you might be able to find in
>> the logs--would be that you've selected the wrong "Audio output
>> device".  Try others, even if the one you selected is the one that seems
>> to work with speaker-test.
>>
>> Mike
>>
>
> I run mythfrontend -v audio and the log for my HDMI-1 is below.  What I
> don't get is why it thinks the device only supports 2.0 instead of 5.1.
> The OS clearly can use the 5.1 channels and So can test websites that have
> 5.1 test streams.
>
> 2022-07-28 09:08:20.087530 I  ALSA: OpenDevice hdmi:CARD=PCH,DEV=0
> 2022-07-28 09:08:20.088230 I  AOS: Sample rate 32000 is supported
> 2022-07-28 09:08:20.088235 I  AOS: Sample rate 44100 is supported
> 2022-07-28 09:08:20.088238 I  AOS: Sample rate 48000 is supported
> 2022-07-28 09:08:20.088240 I  AOS: Sample rate 88200 is supported
> 2022-07-28 09:08:20.088243 I  AOS: Sample rate 96000 is supported
> 2022-07-28 09:08:20.088245 I  AOS: Sample rate 176400 is supported
> 2022-07-28 09:08:20.088248 I  AOS: Sample rate 192000 is supported
> 2022-07-28 09:08:20.088250 I  AOS: Format signed 16 bit is supported
> 2022-07-28 09:08:20.088251 I  AOS: Format signed 32 bit is supported
> 2022-07-28 09:08:20.088257 I  AOS: 2 channel(s) are supported
> 2022-07-28 09:08:20.088262 I  AOS: 4 channel(s) are supported
> 2022-07-28 09:08:20.088266 I  AOS: 6 channel(s) are supported
> 2022-07-28 09:08:20.088270 I  AOS: 8 channel(s) are supported
> 2022-07-28 09:08:20.088375 I  ALSA: Successfully retrieved ELD data
> 2022-07-28 09:08:20.088382 I  ELDUTILS: Detected monitor DENON-AVRHD at
> connection type HDMI
> 2022-07-28 09:08:20.088387 I  ELDUTILS: available speakers: FL/FR LFE FC
> RL/RR RC RLC/RRC
> 2022-07-28 09:08:20.088388 I  ELDUTILS: max LPCM channels = 8
> 2022-07-28 09:08:20.088390 I  ELDUTILS: max channels = 8
> 2022-07-28 09:08:20.088392 I  ELDUTILS: supported codecs = LPCM, AC3, DTS,
> DSD (One Bit Audio), E-AC3, DTS-HD, TrueHD
> 2022-07-28 09:08:20.088399 I  ELDUTILS: supports coding type LPCM:
> channels = 8, rates = 32000 44100 48000 96000 176400 192000, bits = 16 20 24
> 2022-07-28 09:08:20.088403 I  ELDUTILS: supports coding type DTS: channels
> = 6, rates = 44100 48000 96000 176400, max bitrate = 1536000
> 2022-07-28 09:08:20.088405 I  ELDUTILS: supports coding type AC3: channels
> = 6, rates = 32000 44100 48000, max bitrate = 640000
> 2022-07-28 09:08:20.088408 I  ELDUTILS: supports coding type DTS-HD:
> channels = 8, rates = 44100 48000 96000 176400 192000
> 2022-07-28 09:08:20.088410 I  ELDUTILS: supports coding type E-AC3:
> channels = 8, rates = 44100 48000
> 2022-07-28 09:08:20.088413 I  ELDUTILS: supports coding type TrueHD:
> channels = 8, rates = 44100 48000 96000 176400 192000
> 2022-07-28 09:08:20.088414 I  ELDUTILS: supports coding type DSD (One Bit
> Audio): channels = 6, rates = 44100
> 2022-07-28 09:08:20.106297 I  AOBase: Killing AudioOutputDSP
> 2022-07-28 09:08:20.106299 I  AOBase: m_outputSettings !=
> m_outputSettingsDigital : 0
> 2022-07-28 09:08:20.106300 I  AOBase: m_outputSettingsRaw !=
> m_outputSettings 0
> 2022-07-28 09:08:20.106314 I  Found ALSA:hdmi:CARD=PCH,DEV=0 (HDA Intel
> PCH, HDMI 0
> HDMI Audio Output (DENON-AVRHD Connected to HDMI)
> Device Supports Up to 2.0 (LPCM, AC3, DTS, DSD (One Bit Audio), E-AC3,
> DTS-HD, TrueHD))
>
> JIm A
>

BTW, I've eliminated it being OS related.  I get the same results on the
same hardware with Linux Mint 21 beta based on Ubuntu 22.04

Hit:1 http://mirror.cogentco.com/pub/linux/ubuntu jammy InRelease
Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]

Hit:3 http://mirror.cogentco.com/pub/linux/ubuntu jammy-updates InRelease

Hit:4 http://mirror.cogentco.com/pub/linux/ubuntu jammy-backports InRelease

Ign:5 http://packages.linuxmint.com vanessa InRelease

Hit:6 https://dl.google.com/linux/chrome/deb stable InRelease

Hit:7 http://packages.linuxmint.com vanessa Release

Hit:8 http://ppa.launchpad.net/mythbuntu/32/ubuntu jammy InRelease

Jim A
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