ACK: [SRU][I/H/F][PATCH v2 0/2] Fix speaker issues for a couple of Lenovo laptops

Tim Gardner tim.gardner at canonical.com
Wed Oct 13 12:11:57 UTC 2021


Acked-by: Tim Gardner <tim.gardner at canonical.com>

The Focal backport looks good. Clean cherry-picks otherwise.

On 10/12/21 9:50 PM, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1939052
> 
> In the V2, added one more patch to fix the 1st patch.
> 
> [Impact]
> The speaker on a coule of Lenovo laptops can't output sound, need
> to do special initialization.
> 
> [Fix]
> Backport a upstream patch, the patch will initialize the speaker
> amplifier with special verbs.
> 
> [Test]
> Booting the patched kernel, output the sound to speaker, could
> heaer the sound.
> 
> [Where problems could occur]
> The patch set the quirk to some lenovo machines with subsystem id,
> there is no regression risk for other machines.
> 
> Cameron Berkenpas (2):
>    ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion
>      7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops.
>    ALSA: hda/realtek: Fix for quirk to enable speaker output on the
>      Lenovo 13s Gen2
> 
>   sound/pci/hda/patch_realtek.c | 129 ++++++++++++++++++++++++++++++++++
>   1 file changed, 129 insertions(+)
> 

-- 
-----------
Tim Gardner
Canonical, Inc



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