From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antoine Martin Subject: Re: Mouse motion lags Date: Tue, 06 Jan 2009 20:05:01 +0700 Message-ID: <496356FD.9090501@nagafix.co.uk> References: <7bed83ad0901010905x23d0e745rf74be537cfcfc6d7@mail.gmail.com> <4960B941.8000700@redhat.com> <4962F979.7040702@nagafix.co.uk> <40ddf2480901052311g2747b3efy73f95bd8a52c43a5@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: nuitari@melchior.nuitari.net, Avi Kivity , Volodymyr Buell , "kvm@vger.kernel.org" To: Jamie Kirkpatrick Return-path: Received: from mamba.nagafix.co.uk ([194.145.196.68]:57112 "EHLO mail.nagafix.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751914AbZAFNFL (ORCPT ); Tue, 6 Jan 2009 08:05:11 -0500 In-Reply-To: <40ddf2480901052311g2747b3efy73f95bd8a52c43a5@mail.gmail.com> Sender: kvm-owner@vger.kernel.org List-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 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 : > 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 > > > > > > - -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html >> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREKAAYFAkljVv0ACgkQGK2zHPGK1rs7uwCeJTGgITfgi81RRCXZSoau8JnK z3UAniULdjQ5e+sVSMxv8Zm7RdrIRAiK =oWZ0 -----END PGP SIGNATURE-----