When playing Media On A Prim in Linux, the audio controls for Media don't affect it at all. This includes changing the volume or muting. There is no difference - it's on and the same volume no matter what. The only thing that works is toggling it off completely.
  1. Start playing some media on a prim, such as a TV
  2. Try to adjust the volume or mute Media in the Audio settings of the viewer
I am using EndeavourOS, which is Arch based. This has also been seen in CachyOS.
Since the about information that's attached to this post is hidden from public view, here is critical information:
Second Life Project Lua Editor 7.2.3.19911032641 (64bit)
CPU: 11th Gen Intel(R) Core(TM) i5-11400F @ 2.60GHz (4138.95 MHz)
Memory: 48070 MB
OS Version: Linux 6.17.13-lqx1-1-lqx #1 ZEN SMP PREEMPT_DYNAMIC Thu, 18 Dec 2025 16:22:22 +0000 x86_64
Graphics Card Vendor: AMD
Graphics Card: AMD Radeon RX 9060 XT (radeonsi, gfx1200, LLVM 21.1.6, DRM 3.64, 6.17.13-lqx1-1-lqx)
OpenGL Version: 4.6 (Compatibility Profile) Mesa 25.3.2-arch1.1
Window size: 2560x1360
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 128m
Bandwidth: 3000kbit/s
LOD factor: 1.5
Render quality: 4
Texture memory: 16384MB
Disk cache: Max size 2150.4 MB (39.5% used)
J2C Decoder Version: KDU v8.4.1
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.24.2 / OpenAL Community / OpenAL Soft: OpenAL Soft
Dullahan: 1.26.0.202510161627
CEF: 139.0.40+g465474a+chromium-139.0.7258.139
Chromium: 139.0.7258.139
LibVLC Version: 3.0.16
Voice Server Version: Vivox