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HDMI audio output - Apple Community
https://discussions.apple.com/thread/7082155
Apparently for both Displayport/Mini Displayport and HDMI connections on non-original Apple video cards Apple do not enable audio. I had this problem with a Radeon 7950. I found that the HDMI Audio 1.1 kext with Yosemite 10.10.3 fixed this perfectly, I now get audio via the HDMI connection.
HDMI Versions: 1.1, 1.2, 1.3, 1.4, 2, 2.1: Differences ...
https://www.electronics-notes.com/articles/audio-video/hdmi/hdmi-versions.php
HDMI Version 1.2: HDMI 1.1 was released on 8 August 2005 and it broadened the appeal of HDMI. The release of HDMI version 1.2 was a significant leap in the technology, introducing a number of new capabilities. One of the aims was to broaden the appeal of HDMI beyond just the TV related industries and incorporating areas like the PC market where VESA was an emerging …
GUIDE: HDMI Audio | Page 21 | MacRumors Forums
https://forums.macrumors.com/threads/guide-hdmi-audio.1499797/page-21
Just make sure you install the latest nvidia web driver, reboot, disable SIP, install the HDMIAudio-1.1 kext, & reboot. It's a small thing, but I sure love my HDMI audio. As an aside, I had previously installed a newer WiFi/Bluetooth card, so I didn't experience any networking issues upgrading to Sierra.
AppleHDA HDMI Audio [Guide] | tonymacx86.com
https://www.tonymacx86.com/threads/applehda-hdmi-audio-guide.234735/
AppleALC.kext supports non native Nvidia HDMI audio controllers; Intel: [Guide] Intel Framebuffer patching using WhateverGreen (max, 2x HDMI/DP/DVI audio) HD4600 HDMI audio/Port 0x7/WhateverGreen.kext (credit, RehabMan) Pipe edit required when native pipe = 8 (KP results), otherwise ignore; Native connector: 03060800 00040000 11000000 (DP)
Audio | InsanelyMac
https://www.insanelymac.com/forum/files/category/4-audio/
My patched AppleHDA.kext for GA-Z77X-D3H rev.1.1 Codec name: VIA VT2020 Codec Id: 0x11060441 Sub Device: 0x1458a014 Audio Device: 0x80861e20 Revision: 0x0100 Layout ID : 9 Tested on Mac OS X El Capitan 10.11.x (Final release) Works: 1. Internal Speaker 2. SPDIF-Out (not verified) 3. Headphones Front (Autodetect) 4. Microphone Front 5. Line In ...
Fix HDMI port (and possibly others) not working on Intel ...
https://www.reddit.com/r/hackintosh/comments/hu46xm/fix_hdmi_port_and_possibly_others_not_working_on/
Procedure. Step 1: if you have a dGPU, make sure your HDMI port isn't routed to it. If it is, this guide won't help you (and if it's Nvidia, no guide will help you. sorry). I made sure by connecting a second display, going to the Nvidia Control Panel in Windows 10, and under PhysX Configuration you'll see the ports like that:
No HDMI audio on Radeon RX 580 · Issue #631 · libretro ...
https://github.com/libretro/Lakka-LibreELEC/issues/631
I have tried to play sound on the HDMI devices directly using aplay but there was no sound output on any HDMI device. I assume the problem is related to the drivers provided with the Linux kernel 4.11. I can confirm, that using Ubuntu 16.04 with kernel 4.15.0-47-generic the HDMI audio output works flawlessly on the RX 580.
Archive:HOW-TO:Set up audio over HDMI on nVidia GeForce ...
https://kodi.wiki/view/Archive:HOW-TO:Set_up_audio_over_HDMI_on_nVidia_GeForce/nForce_controller
All the information described below, taken from XBMC and Ubuntu forum. Note: This method was tested on ASUS P5N7A-VM motherboard [GeForce 9300 / nForce 730i] but it's believed to be working for any nVidia chipset that supports audio over HDMI. Also confirmed to work on ASUS M3N78-EM motherboard [nVidia GeForce 8300].
No sound through HDMI cable - Apple Community
https://discussions.apple.com/thread/250124787
I have a Radeon RX560 graphics card hooked up through an HDMI cable to a LG 32-Inch IPS Monitor with speakers. No sound is coming from the speakers. I have gone to system settings - sound - Play sound effects through: but only options are, internal speakers, line out, digital out and my bluetooth speaker. Output shows the same options.
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