Comment 7 for bug 1356633

Hi Daniel,

You answer is very complete, I think you guys can mark this BUG as
"Invalid"...

Thanks!
Thiago

On 10 September 2014 07:55, Daniel Berrange <email address hidden>
wrote:

> The SPICE agent provides a transport channel for mouse events which is
> better than USB tablet as it avoids the high CPU burn that USB tablet
> suffers from. So when SPICE agent is enabled, avoiding USB tablet is
> desirable to cut the baseline CPU usage of VMs and thus increase overall
> host CPU capacity / VM density per host.
>
> Of course the logic that Nova applies here is not 100% ideal - there
> will always be some portion of scenarios which may want to keep the USB
> tablet, but on balance disabling it is a win in general. We likely want
> to make it possible to override the default behaviour based on an image
> property, but keep USB disabled by default when SPICE agent is on.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1356633
>
> Title:
> use_usb_tablet=true have no effect
>
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