From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:53388)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kraxel@redhat.com>) id 1URzeP-0003yj-Vh
	for qemu-devel@nongnu.org; Tue, 16 Apr 2013 02:45:58 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <kraxel@redhat.com>) id 1URzeO-0007Pu-Hd
	for qemu-devel@nongnu.org; Tue, 16 Apr 2013 02:45:57 -0400
Received: from mx1.redhat.com ([209.132.183.28]:18983)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kraxel@redhat.com>) id 1URzeO-0007Pj-7i
	for qemu-devel@nongnu.org; Tue, 16 Apr 2013 02:45:56 -0400
Message-ID: <516CF39B.3060904@redhat.com>
Date: Tue, 16 Apr 2013 08:45:47 +0200
From: Gerd Hoffmann <kraxel@redhat.com>
MIME-Version: 1.0
References: <1365426454-6723-1-git-send-email-lilei@linux.vnet.ibm.com>
	<516BF534.3000909@redhat.com> <87wqs3g8ke.fsf@codemonkey.ws>
	<516C1F06.10909@redhat.com> <87vc7nlq55.fsf@codemonkey.ws>
In-Reply-To: <87vc7nlq55.fsf@codemonkey.ws>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] Support for VNC LED state extension proposal
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: lagarcia@br.ibm.com, Lei Li <lilei@linux.vnet.ibm.com>, qemu-devel@nongnu.org

  Hi,

>> What is your vnc client?  Does it support VNC_ENCODING_EXT_KEY_EVENT?
> 
> It's uses gvnc as a protocol library and renders via fbdev.  It reads
> keyboard events by putting /dev/tty into mediumraw mode and uses ext key
> events exclusively.  It has no knowledge of the guest keymap.

Neat.  URL?

Does the linux kernel keep track of {caps,num}lock state (+leds) with
the keyboard in mediumraw mode?  Or does it expect the userspace app set
the led state then?

No UI client (neither vnc nor spice) knows the guest keymap btw.

> I believe VMware already has a VNC extension for passing LED state
> changes and I think having an open extension for this is a Good Thing.
> It's a pretty obvious missing piece in the VNC protocol.

Anyone tried to bug vmware to open the specs for the existing extension?

cheers,
  Gerd