linux-kernel - Re: [PATCH] ALSA: usb-audio: Disable autosuspend for Lenovo ThinkStation P620

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Date:   Mon, 24 Aug 2020 08:29:31 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     tiwai@...e.com, Jaroslav Kysela <perex@...ex.cz>,
        Hector Martin <marcan@...can.st>,
        Alexander Tsoy <alexander@...y.me>,
        Hui Wang <hui.wang@...onical.com>,
        Dmitry Panchenko <dmitry@...ystems.ee>,
        František Kučera <franta-linux@...ntovo.cz>,
        Gregor Pintar <grpintar@...il.com>,
        Jussi Laako <jussi@...arnerd.net>,
        Nick Kossifidis <mickflemm@...il.com>,
        Chris Wulff <crwulff@...il.com>,
        Jesus Ramos <jesus-ramos@...e.com>,
        alsa-devel@...a-project.org (moderated list:SOUND),
        linux-kernel@...r.kernel.org (open list)
Subject: Re: [PATCH] ALSA: usb-audio: Disable autosuspend for Lenovo ThinkStation P620

On Sun, 23 Aug 2020 12:58:50 +0200,
Kai-Heng Feng wrote:
> 
> If USB autosuspend is enabled, both front and rear panel can no longer
> detect jack insertion.
> 
> Enable USB remote wakeup, i.e. needs_remote_wakeup = 1, doesn't help
> either.
> 
> So disable USB autosuspend to prevent missing jack detection event.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>

Thanks, applied.


Takashi