Additional test performed following Canonical Support's recommendation:
- Installed linux-oem-24.04
- Running kernel: 6.17.0-1032-oem
- aplay -l: no soundcards found
- arecord -l: no soundcards found
- PipeWire: Dummy Output only
The issue remains unchanged with the OEM kernel. The same SoundWire/SDCA
errors are present, including "No SoundWire machine driver found", "SWFT
not available", "failed to locate SWF", error -110 and
snd_soc_register_card failed -517.
Dell ePSA diagnostics pass successfully, and the internal speakers work
during the pre-boot audio test.
** Changed in: linux-signed-hwe-6.17 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/2166856
Title:
Dell 14S DS14260: no internal or functional HDMI audio on Ubuntu
24.04.4 and 26.04.1
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