CachyOS / CachyOS/linux-cachyos
[BUG] Razer Leviathan V2 X audio cuts off completely below 34% volume on kernel 7.1.x
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Description
### Pre-flight checklist
- [x] I have searched existing issues and this is not a duplicate.
- [x] I have read the [Contributing Guidelines](https://github.com/CachyOS/linux-cachyos/blob/master/CONTRIBUTING.md).
- [x] I have verified the issue is reproducible with the latest available CachyOS kernel.
- [x] I have tried to reproduce the issue on Arch Linux's `linux` kernel.
### Upstream / vanilla kernel check
I tested with a vanilla/upstream kernel and the issue ALSO reproduces there (upstream bug — please report upstream)
### Kernel variant
linux-cachyos (EEVDF, Clang)
### System information (cachyos-bugreport.sh)
```text
https://paste.cachyos.org/p/8fe9ec6.log
*Note: The attached log was collected while booted into the 6.18 LTS kernel as a temporary workaround, but the issue is fully reproducible every time I switch back to the main cachyos 7.1.x kernel series.*
```
### Manual system information (if cachyos-bugreport.sh is unavailable)
```text
```
### Bug description
After updating to the kernel 7.1.x series, the Razer Leviathan V2 X soundbar completely mutes/cuts off all audio whenever the system volume is set below 34%.
### Steps to reproduce
1. Boot into any CachyOS kernel 7.1.x variant.
2. Play any audio through the Razer Leviathan V2 X via USB.
3. Lower the system volume below 34%.
4. Audio immediately cuts off completely instead of getting quieter.
### Expected behavior
The system volume should smoothly scale from 0% to 100%, and the Razer Leviathan V2 X soundbar should get quieter as the volume decreases, without muting prematurely.
### Actual behavior
All audio cuts off completely and the soundbar gets muted as soon as the system volume slider drops below 34%.
Note: The attached cachyos-bugreport log was collected while booted into the 6.18 LTS kernel as a temporary workaround, but the issue is fully reproducible every time I switch back to the main cachyos 7.1.x kernel series.
### Logs / stack traces
```text
```
### Additional system information
This is an upstream regression affecting USB audio devices. It has already been reported and discussed here:
**CachyOS Forum**: https://discuss.cachyos.org/t/razer-leviathan-v2-x-audio-cuts-off-muted-completely-below-34-volume-after-updating-to-kernel-7-1-x/31906/3
**Kernel Bugzilla**: https://bugzilla.kernel.org/show_bug.cgi?id=221728
Hardware details:
* Motherboard: MSI MAG B550 TOMAHAWK
* USB Device: Razer USA Leviathan V2 X (Clip-ID: 1532:054a)
Contributor guide
Assessment
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