From: Takashi Iwai <tiwai@suse.de>
To: "René Rebe" <rene@exactco.de>
Cc: linux-sound@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
Kailang Yang <kailang@realtek.com>
Subject: Re: [PATCH V2] ALSA: realtek/alc288 fix headphone for MS Surface 2/3
Date: Thu, 20 Nov 2025 15:26:15 +0100 [thread overview]
Message-ID: <87zf8g4w6w.wl-tiwai@suse.de> (raw)
In-Reply-To: <20251120.124240.139462482701146043.rene@exactco.de>
On Thu, 20 Nov 2025 12:42:40 +0100,
René Rebe wrote:
>
> The Surface Pro 2 and 3 have a strange headphone frequency response
> and miss most of the bass. I discovered connecting the HP out to the
> main DAC fixes this. Maybe the other is mono or intentionally filtered
> signal for the built-in speakers? (At least the Lenovo Ideapad 720S
> (AMD) (0x17aa, 0x3812) exhibited the same problem, but I don't have it
> anymore for testing V2 changes.)
>
> Signed-off-by: René Rebe <rene@exactco.de>
> Co-developed-by: Takashi Iwai <tiwai@suse.com>
> ---
> V2: use preferred_pairs instead of directly writing verbs
Applied now. Thanks.
Takashi
prev parent reply other threads:[~2025-11-20 14:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-20 11:42 [PATCH V2] ALSA: realtek/alc288 fix headphone for MS Surface 2/3 René Rebe
2025-11-20 14:26 ` Takashi Iwai [this message]
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