WDMHDA Alpha-021

[andrew-hoffman]

WDMHDA Alpha-021 2026-06-15

• Fixed codec communication by PIO on NForce chipsets
• When using PIO, tries the listed codecs first before probing all slots blindly
• Cleaned up codec & controller initialization logic
• Messages sent to the codec don't block all interrupts for up to 6ms anymore
• Reduce lag when creating or tearing down a stream
• Add jack hotplug detection
  • Plugging in a jack to the headphone out will properly mute the speaker out.
• Cache the last format sent to the codec to avoid a click at start of system sounds
• Add note in readme that Digital Audio Extraction is required for CD audio playback, and how to enable that
• Increased max audio buffer size to 256k

What's Changed

• cleanups in codec.cpp by @andrew-hoffman in cleanups in codec.cpp #66
• Jack detection by @andrew-hoffman in Jack detection #68

Full Changelog: Alpha-020...Alpha-021

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This discussion was created from the release WDMHDA Alpha-021.

[andrew-hoffman]

Tested systems
Acer Aspire One (NM10 chipset, ALC272) Works including speaker/ headphone switching.
Thinkpad T430: Working perfectly including speaker / headphone switching. Hardware mute works but volume buttons don't
Wyse Cx0 (VIA VT1702S): working properly, needed a restart after driver install. only one output so jack detect doesn't matter