Re: Re: [PATCH] qemu vnc updates

[Stefano Stabellini <stefano.stabellini@eu.citrix.com>]

Anthony Liguori wrote:
> You mean realvnc?  The race condition is due to it's use of 
> SetPixelFormat.  By slowing the updates, what you're really doing is 
> just working around that race condition.  That's not a proper solution 
> though.
> 
> This goes away if you set the realvnc options so that it doesn't change 
> the pixel format from what the server specifies.
> 

I think that the realvnc "bug" is due to the fact that they assume that 
if they don't send any update requests, they shouldn't expect any.
This is not a wrong assumption to make unless you are right about the 1 
request -> N reply argument (I still think that this is not what the rfb 
spec says).
Besides my patch doesn't slow down the connection so much, I cannot tell 
the difference on a quick connections. I'll let you know what is the 
behaviour on a slow connection.