ACK: [PATCH v2 0/1][SRU][J/K] Fail to output sound to external monitor which connects via docking station

[Luke Nowakowski-Krijger]

Acked-by: Luke Nowakowski-Krijger <luke.nowakowskikrijger at canonical.com>

On Tue, Mar 7, 2023 at 9:19 AM Chris Chiu <chris.chiu at canonical.com> wrote:

> BugLink: https://bugs.launchpad.net/bugs/2009024
>
> [Impact]
> No sound output from the external monitor which connect via some docking
> station. It only happens when user boot the system with docking station
> connected. Re-plug the docking station can fix this issue. Or plug the
> docking station later won't trigger this problem.
>
> [Fix]
> Turn on the CONFIG_SND_HDA_INTEL_HDMI_SILENT in kernel config. It will
> start sending an "audio keepalive" to the monitor as soon as it is
> connected.
>
> [Test]
> Connect the external monitor to the Atomic Type-C Dock (HD22Q) and boot
> the system with the dock connected. Play sound via HDMI/DP port and check
> if there's any audio output from the external monitor.
>
> [Where problems could occur]
> It sends the "audio keepalive"(silent stream) to the monitor when
> connected. Doesn't affect original workflow of the audio system.
>
> V2: change the SRU target from J/L/U to J/K
>
> Chris Chiu (1):
>   UBUNTU: [Config] Enable CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM
>
>  debian.master/config/annotations          | 2 +-
>  debian.master/config/config.common.ubuntu | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> --
> 2.25.1
>
>
> --
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20230309/1ce41c84/attachment.html>