APPLIED[C/Unstable]: [PATCH 0/1][SRU][Bionic] Enable BIOS workaround for Nvidia HDMI audio

Seth Forshee seth.forshee at
Thu Aug 23 19:18:21 UTC 2018

On Tue, Aug 14, 2018 at 08:18:43PM -0700, Alex Hung wrote:
> BugLink:
> [Impact]
>   Some ThinkPad systems have a power-saving feature that turns off HDMI audio
>   device in Windows, but NVidia Linux driver does not support this feature.
>   As a result, HDMI audio will not work on Linux.
> [Fix]
>   BIOS added solutions with _OSI string "Linux-Lenovo-NV-HDMI-Audio" to
>   workaround, and a patch to report _OSI("Linux-Lenovo-NV-HDMI-Audio")
>   is required in Linux kernel.
>   The patche is included in upstream and is cherry-picked from Linus's repo.
> [Regression potential]
>   No regression as all but targeted firmware will not use this _OSI string

Applied to cosmic/master-next and unstable/master, thanks!

More information about the kernel-team mailing list