Re: [Qemu-devel] [PATCH] usb-hid: activate usb tablet / mouse after migration.

[Peter Lieven <pl@dlh.net>]

On 16.10.2011 10:54, TeLeMan wrote:
> On Thu, Oct 13, 2011 at 18:48, Gerd Hoffmann<kraxel@redhat.com>  wrote:
>> On 10/13/11 04:09, TeLeMan wrote:
>>> On Wed, Oct 12, 2011 at 19:30, Gerd Hoffmann<kraxel@redhat.com>    wrote:
>>>> qemu uses the ps/2 mouse by default.  The usb tablet (or mouse) is
>>>> activated as soon as qemu sees some guest activity on the device,
>>>> i.e. polling for HID events.  That used to work fine for both fresh
>>>> boot and migration.
>>> It does not fix usb tablet/mouse when starting vm directly from snapshot.
>> What does "info mice" print before/after snapshotting?
>> Which guest?  WinXP IIRC?
> Yes, the guest is WinXP.
>
> Original:
> * Mouse #1: QEMU HID Tablet (absolute)
>    Mouse #0: QEMU PS/2 Mouse
>
> Start from the snapshot:
> * Mouse #0: QEMU PS/2 Mouse
>    Mouse #1: QEMU HID Tablet (absolute)
>
> The active mouse device is not be saved into the snapshot.
it seems that the active mouse event receiver is messed up up after 
loading a vm.

if you issue a 'mouse_set 1' in the qemu monitor the tablet should work 
again.

can someone who is more familiar with the loadvm code check if the 
devices are just added in wrong order?

thanks
peter