Re: [Bluez-users] Lost connections - mouse and keyboard

[Marcel Holtmann <marcel@holtmann.org>]

Hi Dave,

> > 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.

in case you have a HID proxy dongle the usbhid driver can be involved.  
And since this is hiddev, then it will be caused by the hid2hci program.

Regards

Marcel

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