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Date:   Tue, 10 Nov 2020 14:55:36 -0500
From:   "Theodore Y. Ts'o" <tytso@mit.edu>
To:     "Limonciello, Mario" <Mario.Limonciello@dell.com>
Cc:     Greg KH <gregkh@linuxfoundation.org>,
        Bastien Nocera <hadess@hadess.net>,
        Mika Westerberg <mika.westerberg@linux.intel.com>,
        Linux PM <linux-pm@vger.kernel.org>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "linux-input@vger.kernel.org" <linux-input@vger.kernel.org>,
        Hans de Goede <hdegoede@redhat.com>
Subject: Re: How to enable auto-suspend by default
Message-ID: <20201110195536.GD2951190@mit.edu>
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One note...  I'll double check, but on my XPS 13 9380, as I recall, I
have to manually disable autosuspend on all of the XHCI controllers
and internal hubs after running "powertop --auto-tune", or else any
external mouse attached to said USB device will be dead to the world
for 2-3 seconds if the autosuspend timeout has kicked in, which was
***super*** annoying.

						- Ted