Fresh HTPC build; sound cutting out

Used Bazzite for years with no trouble on AM4 5900x + 7800xt with audio via HDMI.

Repurpsed 5900x and rebuilt system with 9600X on a A620i AX motherboard with same 7800x gpu. Fresh install from blank m.2 with Bazzite 41 Handheld & HTPC Edition. Video and audio routed via HDMI to display via home theater AVR.

Audio doesnt play in desktop or gaming mode consistently.. Audio is cut off or truncated if played at all; in sound settings spaming a speaker in test mode will get audio to play occasionally, but usually not.

Everything else is working great.

Solution

Solved this with an 4k+audio DP 2.0 ->HDMI 2.1 adapter. (wasnt aware DP carried audio). Seems to work fine now

CalDigit DisplayPort 2.0 to HDMI 2.1 (DP to HDMI) Active Adapter 8K...

The CalDigit DP2.0 to HDMI 2.1 adapter is ideal for use with any DisplayPort video output that you want to convert to HDMI, such as a HDMI monitor or TV. This adapter is also fully compatible with the CalDigit TS4 Thunderbolt 4 and TS3 Plus Thunderbolt 3 docks in order to connect a HDMI monitor v...

Jump to solution

PegaSys•2/27/25, 11:23 PM

audio is cutting out temporarily or permanently?

PegaSys•2/27/25, 11:24 PM

is the audio cutting out during play or for a while during silence

flapJ4cksOP•2/27/25, 11:26 PM

temporarily.

flapJ4cksOP•2/27/25, 11:27 PM

like navigation sounds... sometimes they play, sometimes they dont.

flapJ4cksOP•2/27/25, 11:27 PM

same with the test audio in desktop mode. if I spam it 50 times.. 5-10 might get something out of the speakers.

flapJ4cksOP•2/27/25, 11:48 PM

flapJ4cksOP•2/27/25, 11:49 PM

"Intermittent" is the best description I can think of. In games is the same.. sound comes and goes intermittently

Panthera•2/28/25, 12:23 AM

I had this in windows too. Its AMD HDMI audio issues - are you using latest drivers

PegaSys•2/28/25, 12:50 AM

it's pipewire temporarily shutting down to preserve power or whatever panthera said

PegaSys•2/28/25, 12:50 AM

considering you probably don't care about power usage since you have the htpc version lemme quickly find the fix

PegaSys•2/28/25, 12:51 AM

@Kyle Gospo correct me if im wrong, is pipewire not configured to be permanently on, on htpc?

PegaSys•2/28/25, 12:51 AM

that feels a bit weird if it isn't

Kyle Gospo•2/28/25, 12:51 AM

sleep is disabled everywhere now

PegaSys•2/28/25, 12:52 AM

Kyle Gospo•2/28/25, 12:52 AM

pipewire audio sleep that is

PegaSys•2/28/25, 12:52 AM

so install the update and restart ig @flapJ4cks

flapJ4cksOP•2/28/25, 12:52 AM

Roger, will give that a go! Thank you!

flapJ4cksOP•2/28/25, 12:54 AM

err.. I did an update first thing after this fresh install earlier today. Is there a specific update number to target?

PegaSys•2/28/25, 12:54 AM

if ujust update says it's up to date then it's up to date ig

PegaSys•2/28/25, 12:55 AM

@Panthera could you elaborate on what you said about hdmi?

PPegaSys @Panthera could you elaborate on what you said about hdmi?

Panthera•2/28/25, 12:57 AM

yes sure, I connected my mini PC (HX99G with 6600M GPU) to my TV 2 years ago and aduio stuttered like crazy. I ried different HDMI cables everything but still same issue. It turns out it was an issue with AMD audio over HDMI. I solved it by using USB-C to HDMI cable instead. However about 4 months ago that cable broke and I went bck to HDMI and the problem happens 1% of the time now, so I guess recent driver updates maybe fixed it

PegaSys•2/28/25, 12:58 AM

uhm then i guess display port time?

PPegaSys uhm then i guess display port time?

Panthera•2/28/25, 1:00 AM

if you want immediate fix yes

PPegaSys uhm then i guess display port time?

Panthera•2/28/25, 1:19 AM

please report back if that fixes it

flapJ4cksOP•2/28/25, 1:32 AM

Im going to liveCD Ubuntu to see if audio works there...

flapJ4cksOP•2/28/25, 2:01 PM

same issue on Ubuntu :/

flapJ4cksOP•2/28/25, 2:02 PM

gotta be an AMD driver issue

flapJ4cksOP•2/28/25, 2:49 PM

Removing the GPU entirely, and just using th iGPU on the 9600x and the audio works flawlessly. :/

PegaSys•2/28/25, 2:54 PM

from what i heard hdmi just kinda sucks on linux because of it being closed source so i think the only solution really might just to use display port

flapJ4cksOP•2/28/25, 2:59 PM

unfortunately not an option in a home theater setup. AVRs & TVs dont have seperate audio inputs these days..let alone DP. its all via HDMI

FflapJ4cks unfortunately not an option in a home theater setup. AVRs & TVs dont have seper...

PegaSys•2/28/25, 3:04 PM

if you have AVR can't you route audio from the motherboard into it rather than through hdmi? or am i misunderstanding

flapJ4cksOP•2/28/25, 3:14 PM

Modern avr's dont really have RCA inputs for audio unless its phono. Similar to this Denon.

flapJ4cksOP•2/28/25, 3:15 PM

Certainly modern TVs dont have RCA inputs for audio

flapJ4cksOP•2/28/25, 3:16 PM

(i could use TOSlink in I guess if my mobo had TOSLink... maybe I can find a USB audio device with TOS... odds of linux support? lol)

Solution

flapJ4cks•3/1/25, 4:48 PM

Solved this with an 4k+audio DP 2.0 ->HDMI 2.1 adapter. (wasnt aware DP carried audio). Seems to work fine now

CalDigit DisplayPort 2.0 to HDMI 2.1 (DP to HDMI) Active Adapter 8K...

flapJ4cksOP•3/1/25, 5:18 PM

I lied.. this WAS a fix until I updated the system, and now its broken again. Same problem. Crackling sound or cut-off & intermittent audio

PegaSys•3/1/25, 5:21 PM

yeah sorry to say, hdmi simply isn't very good on open source drivers

flapJ4cksOP•3/1/25, 5:22 PM

well im not using HDMI anymore.. Using DP

flapJ4cksOP•3/1/25, 5:22 PM

whats crazy as it worked fine for literally over a year.

PegaSys•3/1/25, 5:22 PM

you're still outputting a primarily hdmi signal are you not?

flapJ4cksOP•3/1/25, 5:22 PM

then just stopped in the last month :/

flapJ4cksOP•3/1/25, 5:23 PM

Im not sure what you mean by that Q... Im using DisplayPort output on my GPU, and using a DP->HDMI dongle right before the AVR

PegaSys•3/1/25, 5:24 PM

DP to HDMI isn't an official thing, so audio issues sound about expected

flapJ4cksOP•3/1/25, 5:24 PM

flapJ4cksOP•3/1/25, 5:25 PM

welp, parts for last ditch effort via TOSlink arriving today

PegaSys•3/1/25, 5:25 PM

hope it works out

flapJ4cksOP•3/1/25, 5:25 PM

fwiw, Audio withOUT a GPU.. ie, physically removed gpu and used iGPU on cpu, worked flawlessly

Fresh HTPC build; sound cutting out

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