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No sound through hdmi - ati radeon HD 3470, 12.04 - tried ...
https://askubuntu.com/questions/596494/no-sound-through-hdmi-ati-radeon-hd-3470-12-04-tried-everything
I have Asus Laptop model F6V with Ati Radeon HD 3470 graphics and Ubuntu 12.04.5 LTS (precise pargolin). I have set the the output to HDMI but get no sound. Speakers and headset are ok. I tried several things but nothing: check with alsamixer if HDMI is unmuted, added . radeon.audio=1 to grub, added . options snd-hda-intel xxx model=xxx
Ati HDMI Audio on HD3470 problems, no audio device found ...
https://www.avforums.com/threads/ati-hdmi-audio-on-hd3470-problems-no-audio-device-found.936889/
Yep, HD3470, this one - SAPPHIRE HD 3470 256MB GDDR3 PCI-E Most 3xxx onwards Ati cards have audio built in. Except on matters of forum moderation, the views expressed in this post are my own, and do not necessarily reflect the opinions of AVForums. jameson_uk Well-known Member Feb 15, 2009 #8 broona said:
ATI HD3470 Mobility HDMI Audio output not working ...
https://www.sevenforums.com/sound-audio/88240-ati-hd3470-mobility-hdmi-audio-output-not-working.html
I guess the ATI card and W7 has to see a valid HDMI signal from the TV before it will enable the HDMI option. This is not an intermittant issue - it is a matter of the ATI HDMI detecting the connection and is very repeatable and consistant. All drivers ATI and VIA audio are the latest to date as of today.
Vostro 3470, problem with HDMI? - Dell Community
https://www.dell.com/community/Vostro-Desktops/Vostro-3470-problem-with-HDMI/td-p/7371795
Download. RealTek ALC3820 High Definition Audio Driver. This package contains the driver for RealTek ALC3820 HD Audio. It is supported on Dell Inspiron 3670, 3470, 3472, Vostro 3670, 3470, 3070 3472, ChenMing 3980, and Vostro 3670 and 3070 with China Deluxe Software systems that run Windows 10 operating system.
ATI HD3470 Mobility HDMI Audio output not working ...
https://www.sevenforums.com/sound-audio/88240-ati-hd3470-mobility-hdmi-audio-output-not-working-2.html
Sound & Audio: Realtek HDMI Output ATI HDMI Audio -Not Plugged In-I'm trying to hook up my TV with my computer, and for the most part it's working. The video goes through and I get how to control it and everything. The only thing not working is the sound. I'm using an HDMI to HDMI cable, and like I said the video is fine.
Radeon HD3470 HDMI issue - AVForums
https://www.avforums.com/threads/radeon-hd3470-hdmi-issue.1093643/
The Tosh only has 2 HDMI ports - HDMI 1 is used for Sky HD and HDMI 2 has a splitter for my HD-DVD and the PC. Just realised that an AV setting in the Tosh menu requires changing to PC/HDMI1 for audio when using a vga cable. I hooked up the old rca cable to the tv and Optiplex soundcard and I now have sound.
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