From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52568) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xw6fE-0001IJ-Fc for qemu-devel@nongnu.org; Wed, 03 Dec 2014 04:56:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xw6fA-0002rO-Ps for qemu-devel@nongnu.org; Wed, 03 Dec 2014 04:56:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:51503) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xw6fA-0002r3-J3 for qemu-devel@nongnu.org; Wed, 03 Dec 2014 04:56:00 -0500 Date: Wed, 3 Dec 2014 09:54:22 +0000 From: "Daniel P. Berrange" Message-ID: <20141203095422.GD10160@redhat.com> References: <1417589746-12176-1-git-send-email-arei.gonglei@huawei.com> <20141203093807.GA10160@redhat.com> <547EDD01.7050608@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <547EDD01.7050608@huawei.com> Subject: Re: [Qemu-devel] [RFC PATCH v2 0/6] Support to change VNC keyboard layout dynamically Reply-To: "Daniel P. Berrange" List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gonglei Cc: "kraxel@redhat.com" , "lcapitulino@redhat.com" , "Huangweidong (C)" , "qemu-devel@nongnu.org" , "Huangpeng (Peter)" On Wed, Dec 03, 2014 at 05:50:57PM +0800, Gonglei wrote: > On 2014/12/3 17:38, Daniel P. Berrange wrote: > > > On Wed, Dec 03, 2014 at 02:55:40PM +0800, arei.gonglei@huawei.com wrote: > >> From: Gonglei > >> > >> A bonus of this feature is that supporting different > >> people (in different countries) using defferent keyboard > >> to connect the same guest but not need to configure > >> command line or libivrt xml file then restart guest. > >> > >> Using a new QMP command: > >> -> { "execute": "change-vnc-kbd-layout", > >> "arguments": { "keymap": "de" } } > >> <- { "return": {} > >> > >> I knew sdl and curses are using keyboard layout, but I don't know > >> whether they both need to support this feature and add some new > >> qmp command for them? > >> > >> If you have some ideas, please let me know. Thanks! > > > > FWIW users of VNC are much better off not setting any keymap at all > > in QEMU, and then using a client (such as GTK-VNC) that supports the > > raw scancode extension. This takes QEMU out of the key remapping > > business entirely, so that everything "just works" with no extra > > configuration required in QEMU. This is what SPICE does by default > > too. > > Actually, my team had received the requirement of changing VNC keyboard > layout dynamically on the scenario of Desktop Cloud. The clientele just use > the simplest tight vnc client, but not GTK-VNC etc. I think we should support > this scenario, isn't it ? Personally I think effort is better spent adding support for the keyboard extension to more of the various VNC clients that exist. Having to issue monitor commands to change keymap each time a different client wants to connect is still a pretty sucky solution IMHO. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|