ACK: [SRU][Focal][OEM-5.6][PATCH 0/1] No sound, Dummy output on Acer Swift 3 SF314-57G with Ice Lake core-i7 CPU

Stefan Bader stefan.bader at
Thu Jul 30 09:15:18 UTC 2020

On 29.07.20 06:25, Hui Wang wrote:
> BugLink:
> This patch is already in the 5.8-rc1, so it is already in the Groovy kernel.
> I thought this patch will be merged to ubuntu kernel with stable patches,
> but today a ubuntu user pushed me to do sth to let this patch be merged
> to ubuntu kernel asap, so I send this SRU.
> [Impact]
> On this machine, after booting up, there is no valid sound card, the
> gnome-control-center shows a dummy output only. check the dmesg, the alsa
> sof driver fails to initialize.
> [Fix]
> Backport a patch from upstream, after applying this patch, the sof driver
> will not fail anymore even the codec driver is hda_generic
> [Test Case]
> A couple of users already test this patch on their machines, after booting
> up, there is a valid sound card, and could output sound from output devices.
> [Regression Risk]
> Low, this is cherry-picked from upstream, and this just adds a new kind of
> codec (generic) support, and a couple of ubuntu users already verified this
> patch.
> Kai Vehmanen (1):
>   ASoC: SOF: Intel: hda: fix generic hda codec support
>  sound/soc/sof/intel/hda-codec.c | 51 +++++++++++++++++++++++++++++----
>  1 file changed, 45 insertions(+), 6 deletions(-)
Acked-by: Stefan Bader <stefan.bader at>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <>

More information about the kernel-team mailing list