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 canonical.com
Thu Jul 30 09:15:18 UTC 2020


On 29.07.20 06:25, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1877757
> 
> 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 canonical.com>

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