Date:	Thu, 29 Nov 2007 16:06:01 +0800
From:	"Dave Young" <hidave.darkstar@...il.com>
To:	bgsmith@...dcable.com,
	"BlueZ users" <bluez-users@...ts.sourceforge.net>
Cc:	"Marcel Holtmann" <marcel@...tmann.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Bluez-users] Lost connections - mouse and keyboard

On Nov 29, 2007 11:03 AM, Brad Smith <bgsmith@...dcable.com> wrote:
>
> Thank you for the reply Marvel.  I use the gnome bluetooth client which

Marcel

> apparently does manage bluetooth devices using bluetooth-input-service.
> I  still have the problem of the devices disappearing if idle for too
> long such as when i lock the desktop or log out for  a long period.
> Sometimes I can re-enable the devices, but sometimes I cannot.  This is
> frustrating.
>
> I see a the following several times in the system log if i restart
> bluetooth:
> Nov 28 18:53:39 pico kernel: WARNING: at drivers/hid/hid-core.c:784
> implement() (Tainted: P       )
> Nov 28 18:53:39 pico kernel:
> Nov 28 18:53:39 pico kernel: Call Trace:
> Nov 28 18:53:39 pico kernel:  [<ffffffff811d8549>] hid_output_report
> +0x1c5/0x232
> Nov 28 18:53:39 pico kernel:  [<ffffffff811ddaf1>] hid_submit_ctrl
> +0x60/0x24b
> Nov 28 18:53:39 pico kernel:  [<ffffffff811dde45>] usbhid_submit_report
> +0x169/0x19e
> Nov 28 18:53:39 pico kernel:  [<ffffffff811e030b>] hiddev_ioctl
> +0x368/0x919
> Nov 28 18:53:39 pico kernel:  [<ffffffff810f54c5>] inode_has_perm
> +0x65/0x72
> Nov 28 18:53:39 pico kernel:  [<ffffffff81120c17>] __up_read+0x19/0x7f
> Nov 28 18:53:39 pico kernel:  [<ffffffff8125eecc>] do_page_fault
> +0x490/0x7e4
> Nov 28 18:53:39 pico kernel:  [<ffffffff810a7399>] do_ioctl+0x55/0x6b
> Nov 28 18:53:39 pico kernel:  [<ffffffff810a75f2>] vfs_ioctl+0x243/0x25c
> Nov 28 18:53:39 pico kernel:  [<ffffffff810a7664>] sys_ioctl+0x59/0x79
> Nov 28 18:53:39 pico kernel:  [<ffffffff8100bd45>] tracesys+0xd5/0xda
>

Does bluetooth input devices have something to do with usbhid? I don't
know, perhaps this is another problem in kernel.

Please dont mind to add lkml as cc.

Regards
dave

> Brad
>
>
>
> On Mon, 2007-11-26 at 06:49 +0100, Marcel Holtmann wrote:
> > Hi Brad,
> >
> > > I have a Logitech mouse and keyboard that use bluetooth (dinovo).  I
> > > have enabled bluetooth on this Fedora 8 system and both work well with
> > > two problems.
> > >
> > > (1) When I lock the system and return later the mouse no longer works.
> > > I have to open a terminal window and issue an hidd --connect command.
> > >
> > > (2) When I log out, both the mouse and keyboard stop working.  I have to
> > > connect a USB mouse and USB keyboard to enter the authentication
> > > information.  Once logged in the bluetooth devices usually work,
> > > although I sometimes have to issue an hidd --connect command to enable
> > > the keyboard.
> > >
> > > Any suggestions on resolving these issues would be appreciated.
> >
> > not using hidd and using bluetoothd-input-service instead is one thing.
> > For input devices to re-connect you have to have a daemon running that
> > handles this. The input service is the best way to achieve this. Check
> > the BlueZ wiki for details.
>
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