On Fri, 07 May 2021 04:44:52 +0200, Hui Wang wrote: > > Ubuntu users reported an audio bug on the Lenovo Yoga Slim 7 14IIL05, > he installed dual OS (Windows + Linux), if he booted to the Linux > from Windows, the Speaker can't work well, it has crackling noise, > if he poweroff the machine first after Windows, the Speaker worked > well. > > Before rebooting or shutdown from Windows, the Windows changes the > codec eapd coeff value, but the BIOS doesn't re-initialize its value, > when booting into the Linux from Windows, the eapd coeff value is not > correct. To fix it, set the codec default value to that coeff register > in the alsa driver. > > BugLink: http://bugs.launchpad.net/bugs/1925057 > Suggested-by: Kailang Yang <kailang@xxxxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> > Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx> Thanks, applied. Takashi
