[6.00 Beta 7] No sound on BT headphones under Linux - resolved locally

[Reinis]

Hi,

I have no sound on Bluetooth headphones. Wired headphones/speakers work fine.

The Sound Settings show two Sound Device sources - System Default and JACK Default. Neither provides sound on BT headphones.

My system:

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OS: EndeavourOS Linux x86_64 
Host: TITAN Standard 
Kernel: 6.2.8-arch1-1 
Resolution: 2560x1440 
DE: Plasma 5.27.3 
WM: KWin 
CPU: AMD Ryzen 9 5900HX with Radeon Graphics (16 
GPU: NVIDIA GeForce RTX 3070 Mobile / Max-Q 
Memory: 4421MiB / 31999MiB 

Link to savegame:

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https://www.dropbox.com/s/8p9savtaaewx6x8/save_002.xml.gz?dl=0

Let me know if I need to provide any additional information and I will post it asap.

Thanks!

[Reinis]

Forgot to add - the game version is Beta 496555.

[Reinis]

To clarify, the BT headphones play sound just fine from system, as well as X4 5.1 GOG edition. But will not play sound on RC1 from Steam.
Just tested on 5.1 HF4 from Steam - all relevant sound sources are shown in the dropdown, and BT headphones play sound as expected.

[Reinis]

Switching from Beta to 5.10 branch and then back to Beta seems to have fixed the issue.

[Reinis]

The issue has returned. I only started the game and verified that sounds works after switching from 6 RC1 to 5.1 and back. Some hours later, when I wanted to play, the issue was back.

[CBJ]

Nothing has changed with the game since your last post, so clearly this is a local issue on your system rather than a game issue. The game knows nothing about how headphones are connected anyway, relying on what devices OpenAL tells it are available and sending sounds via the same API. Maybe look at whether something else on your system is affecting your OpenAL setup, overwriting whatever is done when X4 is installed.

[Alan Phipps]

There have been a few reports of unexplained loss of sound in-game that were resolved by disabling the Nvidia sound device and driver that is often installed at every graphics driver update (assuming that you do not use that as your default).

[Reinis]

Nothing has changed with the game since your last post, so clearly this is a local issue on your system rather than a game issue.

I wouldn't be so sure. I downgraded once again to 5.1 version and all correct Sound Devices show under the Sound Settings - System Default, as well as laptop speakers, USB wired speakers and Bluetooth wireless headphones. And sound plays just fine on BT headphones.

Switching back to Beta branch shows only System Default and JACK Default. And BT headphones do not work under the System Default.

No other application or game has such an issue.

I'd be more than happy to provide any additional information.

[CBJ]

Yesterday, with the exact same process, and the same versions of the game, it worked. Something else must have changed locally for it not to work today.

[Alan Phipps]

Just a simple sanity check, but changing sound devices and hence drivers during gameplay or with the game on pause out of focus will rarely work. You usually have to restart the game session before the change can be effective. Just in case this is causing any confusions.