linux-kernel - Re: [Regression] Bluetooth mouse broken in 6.12-rc3

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Message-ID: <CABBYNZL_EtFQ-n5K8fFQJpCJmDksLpJ38RMcoawgttCHP6Hwwg@mail.gmail.com>
Date: Mon, 14 Oct 2024 16:03:40 -0400
From: Luiz Augusto von Dentz <luiz.dentz@...il.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>, Kiran K <kiran.k@...el.com>, 
	"Thorsten Leemhuis (regressions address)" <regressions@...mhuis.info>, Linux PM <linux-pm@...r.kernel.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, 
	"open list:BLUETOOTH DRIVERS" <linux-bluetooth@...r.kernel.org>, Marcel Holtmann <marcel@...tmann.org>
Subject: Re: [Regression] Bluetooth mouse broken in 6.12-rc3

Hi Rafael,

On Mon, Oct 14, 2024 at 2:37 PM Rafael J. Wysocki <rafael@...nel.org> wrote:
>
> Hi Luiz,
>
> Unfortunately, commit 610712298b11 ("Bluetooth: btusb: Don't fail
> external suspend requests") from you that appeared in 6.12-rc3
> prevents my Logitech Bluetooth mouse from connecting to the host
> (btusb).  The LED activity on the mouse indicates that it tries to
> associate, but there is no response.  It looks like the host is
> suspended before the device can connect to it and it cannot be woken
> up for some reason.
>
> It worked no problem in 6.12-rc2 and the above commit is the only BT
> one in 6.12-rc3.  Also reverting it makes things work again.
>
> In the "good" case (for example, in 6.12-rc3 with the above commit
> reverted), the following messages are present in the kernel log:
>
> [  251.748734] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
> [  251.748763] Bluetooth: HIDP socket layer initialized
> [  251.773010] hid-generic 0005:046D:B016.0001: unknown main item tag 0x0
> [  251.774432] input: Bluetooth Mouse M336/M337/M535 Mouse as
> /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:1/0005:046D:B016.0001/input/input14
> [  251.775733] input: Bluetooth Mouse M336/M337/M535 Consumer Control
> as /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:1/0005:046D:B016.0001/input/input15
> [  251.777163] input: Bluetooth Mouse M336/M337/M535 Keyboard as
> /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:1/0005:046D:B016.0001/input/input18
> [  251.815905] hid-generic 0005:046D:B016.0001: input,hidraw0:
> BLUETOOTH HID v12.03 Mouse [Bluetooth Mouse M336/M337/M535] on
> 9c:b6:d0:96:8e:c8
>
> In the "bad" case (for example, in unmodified 6.12-rc3) they are not
> there at all.

Thanks for the report, we had quite a few similar reports and I will
send a fix sortly.

> Thanks!
>


-- 
Luiz Augusto von Dentz