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SOF needs to support unbind/hot-unplug of the display codec #5276

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kv2019i opened this issue Dec 19, 2024 · 1 comment
Open

SOF needs to support unbind/hot-unplug of the display codec #5276

kv2019i opened this issue Dec 19, 2024 · 1 comment
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display audio Audio to HDMI/DisplayPort via HDA enhancement New feature or request HDA Applies to HD-Audio bus for codec connection

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@kv2019i
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kv2019i commented Dec 19, 2024

Old problem of display driver unbind trigger errors when done while audio is in runtime-active state, has resurfaced again this year.
See the 2021 thread https://mailman.alsa-project.org/hyperkitty/list/[email protected]/thread/4AUEJSQD7KL6L6LNR47QNZ6PJFZCNSMK/ and recent replied this year.

It now seems consensus is to support card disconnect and this requires SOF support as well.

@kv2019i kv2019i added enhancement New feature or request HDA Applies to HD-Audio bus for codec connection display audio Audio to HDMI/DisplayPort via HDA labels Dec 19, 2024
@kv2019i
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kv2019i commented Dec 19, 2024

FYI @bardliao @ujfalusi -- I know prototyping is ongoing with separating HDMI/DP PCMs to a separate card, that would help with this task as well.

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Labels
display audio Audio to HDMI/DisplayPort via HDA enhancement New feature or request HDA Applies to HD-Audio bus for codec connection
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