Re: Regression: very quiet speakers on Thinkpad T570s

From: Takashi Iwai
Date: Fri Nov 30 2018 - 11:00:42 EST


On Fri, 30 Nov 2018 15:49:17 +0100,
Jeremy Cline wrote:
>
> Hi,
>
> Some folks have reported on the Fedora bug tracker[0] that the laptop
> speaker volume is very low on the Thinkpad T570 when running a kernel
> that includes commit 61fcf8ece9b6 ("ALSA: hda/realtek - Enable Thinkpad
> Dock device for ALC298 platform").
>
> alsa-info.sh from v4.15.4 (just before commit 61fcf8ece9b6 arrived in
> stable) and v4.19.4 with the issue present are attached to the bugzilla.
> I've also Cc'd Tim, who uploaded them and has the laptop in question.
>
> [0] https://bugzilla.redhat.com/show_bug.cgi?id=1554304

Could you pinpoint which kernel version started showing the
regression, at least? The diffs are fairly wide between 4.15 and
4.19.


thanks,

Takashi