2 Dec
2021
2 Dec
'21
5:39 p.m.
On Thu, 02 Dec 2021 16:35:23 +0100, Werner Sembach wrote:
Am 02.12.21 um 16:28 schrieb Werner Sembach:
This fixes the SND_PCI_QUIRK(...) of the TongFang PHxTxX1 barebone. This fixes the issue of sound not working after s3 suspend.
When waking up from s3 suspend the Coef 0x10 is set to 0x0220 instead of 0x0020. Setting the value manually makes the sound work again. This patch does this automatically.
An educational question: Is there any, at least partial, documentation available on what these Coef values actually do besides https://www.kernel.org/doc/html/v5.15/sound/hd-audio/realtek-pc-beep.html ?
Unfortunately, no. It's a completely vendor-specific black magic.
Takashi