[vfio-users] VM loses mouse

[Javier Celaya]

You cannot remove the PS/2 mouse from Qemu, it's always virtualized.


Javi

2017-04-28 13:40 GMT+02:00 Patrick O'Callaghan <poc at usb.ve>:

> On Tue, 2017-04-25 at 15:43 +0100, Patrick O'Callaghan wrote:
> > On Tue, 2017-04-25 at 06:43 -0700, Jamie Lawrence wrote:
> > > > On Apr 25, 2017, at 4:45 AM, Christopher Thompson <
> Chris.Thompson1 at synopsys.com> wrote:
> > > >
> > > > This sounds like the PS/2 driver/emulated hardware controller gets
> itself in knots. PS/2 isn't hot plug, so if something goes wrong it's
> generally stuffed until a reboot, which sounds like your issue.
> > > >
> > > > One common option is to use Synergy, which passes the keyboard and
> mouse over the network, you set up the synergy service running on the Linux
> host, with it configured to map an edge of the screen to your Windows VM,
> then when the Windows VM is running and the synergy client connects you can
> move the mouse over that edge of the screen and it will appear on Windows
> (if you have multiple monitors this looks like the mouse seamlessly goes
> from one screen to the other).
> > >
> > > I use Synergy, and the bug occurs with it as well. It adds a layer of
> confusion when it happens, but that's about it. (I use a hardware KVM
> switching two videocards to the same monitor, but the mouse isn't connected
> to it.) At least with the Synergy version I have, the UI locks up under
> windows, but it keeps functioning. The bug also happens without it running.
> > >
> > > Spent some time attempting to force the bug this weekend, but didn't
> manage to.  I'll try again to get some logging soon.
> >
> > That's useful to know, thanks.
>
> I installed Synergy and it just happened to me again. What isn't clear
> to me is if Synergy is actually being used. I know it's running on both
> host (as server) and guest (as client) but the guest also has the PS/2
> mouse because virt-manager doesn't let you remove it. I wonder if it's
> necessary to run KVM/QEMU from the command line to get this to work
> properly.
>
> poc
>
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