From: Antoine Martin <antoine@nagafix.co.uk>
To: Jamie Kirkpatrick <jkp@kirkconsulting.co.uk>
Cc: nuitari@melchior.nuitari.net, Avi Kivity <avi@redhat.com>,
Volodymyr Buell <vbuell@gmail.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: Mouse motion lags
Date: Tue, 06 Jan 2009 20:05:01 +0700 [thread overview]
Message-ID: <496356FD.9090501@nagafix.co.uk> (raw)
In-Reply-To: <40ddf2480901052311g2747b3efy73f95bd8a52c43a5@mail.gmail.com>
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Jamie Kirkpatrick wrote:
> Try adding -usbdevice tablet. This should sort it out.
Thank you very much. That did the trick!
>
> 2009/1/6 Antoine Martin <antoine@nagafix.co.uk>:
> nuitari@melchior.nuitari.net wrote:
>>>>>> Hi everybody,
>>>>>>
>>>>>> I switched to KVM some time ago from vmware and VB. Everything works
>>>>>> great but there are noticeable lags in mouse motion in comparison with
>>>>>> other VMs.
>>>>>> Is this a known issue? Are there any optimizations for that?
>>>>>>
>>>>>> KVM: 79
>>>>>> Distr: Ubuntu Intrepid & Jaunty
>>>>>> Command line: QEMU_AUDIO_DRV=sdl; kvm -net nic -net user -soundhw
>>>>>> es1370 -m 750 -smp 2 win.qcow
>>>>>>
>>>>> Is this under guest or host load? Or just moving the mouse around?
>>>>>
>>>>> Is the host swapping by any chance?
>>>> I've noticed that issue on guest load, no swapping.
>>>> But even just moving the mouse around feels more laggy then under vmware.
>>>> I've tried mine with just 1 guest cpu.
> I've noticed what I believe to be the same bug: when moving the mouse
> around the vnc viewer, the guest does not seem to follow the same
> acceleration and I end up with 2 pointers completely out of sync.
>
> This makes it really hard to use the mouse (especially as the real
> pointer often moves off-screen before you reach the part of the guest
> screen that you need..)
> I normally would not care about mouse and UI (I run most guests in
> no-graphic mode), but I have to run some tests against "that-other-OS"
> at the moment, and this makes it even more of a nightmare.
>
> Any advice would be much appreciated.
> I have tried various VNC clients (no effect), looked for mouse options,
> etc..
>
> Thanks
> Antoine
>
>
>
>
>
>
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>>
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next prev parent reply other threads:[~2009-01-06 13:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-01 17:05 Mouse motion lags Volodymyr Buell
2009-01-01 21:44 ` Todd Deshane
2009-01-01 22:08 ` Volodymyr Buell
2009-01-06 23:04 ` Jindrich Makovicka
2009-01-04 13:27 ` Avi Kivity
2009-01-04 19:58 ` nuitari
2009-01-04 19:57 ` Avi Kivity
2009-01-06 6:26 ` Antoine Martin
2009-01-06 7:11 ` Jamie Kirkpatrick
2009-01-06 13:05 ` Antoine Martin [this message]
2009-01-06 7:36 ` Ian Kirk
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