On Wed, 08 Nov 2017 08:34:44 +0100, Kailang wrote: > > > Hi Takashi, > > Attach patch for test. > Thanks. OK, let's ask testing on the bugzilla, then queue it. Thanks! Takashi > > BR, > Kailang > > > -----Original Message----- > > From: Takashi Iwai [mailto:tiwai@xxxxxxx] > > Sent: Wednesday, November 08, 2017 3:11 PM > > To: Kailang > > Subject: Re: ALC275 COEF stuff? > > > > On Wed, 08 Nov 2017 07:50:27 +0100, > > Kailang wrote: > > > > > > > > > Hi Takashi, > > > > > > ALC275 had no EAPD control COEF register. > > > So, BIOS verb table default will write COEF Index 0x0e bit 0 to 1. > > > This is enable class-D power up. > > > Windows restart will remove driver, it will write Index > > 0x0e bit 0 to > > > 0. (Power down class-D power) Maybe this will resolve the pop noise. > > > > > > So, I think add write COEF Index 0x0e bit 0 to 1 at EAPD > > site will sovle this issue. > > > I could make a patch for you. > > > > Great, thanks! > > > > BTW, there is another bug report about the missing right > > speaker output on Huawei MateBook X with ALC298: > > https://bugzilla.kernel.org/show_bug.cgi?id=197801 > > > > Can it be some missing COEF, too? > > > > > > Takashi > > > > > > > Thanks. > > > > > > BR, > > > Kailang > > > > > > > -----Original Message----- > > > > From: Takashi Iwai [mailto:tiwai@xxxxxxx] > > > > Sent: Tuesday, November 07, 2017 9:00 PM > > > > To: Kailang > > > > Subject: ALC275 COEF stuff? > > > > > > > > Hi Kailang, > > > > > > > > we got a bug report about the possibly missing COEF setup for > > > > ALC275 on Sony VAIO. > > > > https://bugzilla.kernel.org/show_bug.cgi?id=197737 > > > > > > > > Could you check whether the suggested verbs are correct? > > > > > > > > Thanks! > > > > > > > > > > > > Takashi > > > > > > > > > > > > ------Please consider the environment before printing this e-mail. > > > > > > > [2 0000-alc275-no-sound.patch <application/octet-stream (base64)>] > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
