On Mon, 03 Jan 2022 15:05:17 +0100, Christian Lachner wrote: > > This patch addresses an issue where after rebooting from Windows into Linux > there would be no audio output. > > It turns out that the Realtek Audio driver on Windows changes some coeffs > which are not being reset/reinitialized when rebooting the machine. As a > result, there is no audio output until these coeffs are being reset to > their initial state. This patch takes care of that by setting known-good > (initial) values to the coeffs. > > We initially relied upon alc1220_fixup_clevo_p950() to fix some pins in the > connection list. However, it also sets coef 0x7 which does not need to be > touched. Furthermore, to prevent mixing device-specific quirks I introduced > a new alc1220_fixup_gb_x570() which is heavily based on > alc1220_fixup_clevo_p950() but does not set coeff 0x7 and fixes the coeffs > that are actually needed instead. > > This new alc1220_fixup_gb_x570() is believed to also work for other boards, > like the Gigabyte X570 Aorus Extreme and the newer Gigabyte Aorus X570S > Master. However, as there is no way for me to test these I initially only > enable this new behaviour for the mainboard I have which is the Gigabyte > X570(non-S) Aorus Master. > > I tested this patch on the 5.15 branch as well as on master and it is > working well for me. > > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205275 > Signed-off-by: Christian Lachner <gladiac@xxxxxxxxx> Thanks, applied now (with Cc-to-stable and Fixes tag). Takashi
