Re: xdpyinfo | grep RENDER question

[Rick Stevens <rstevens vitalstream com>]

Mark Knecht wrote:
> Rick Stevens wrote:
>
> > >    Should we possibly update the ssh tunneling page we did to reflect 
> > > this change as of openssh-3.8?
> >
> >
> >
> > Absolutely!  You don't even need to ask.  Will you handle it or do you
> > want me to?
>
>
> Either way. It's probably only a line or two. I don't have access to the 
> server so you or someone else would have to add it, but I'd be happy to 
> write some text. In fact maybe just a note more or less like this:
>
>
>
> NOTE: Since the release of openssh Ver 3.8 a standard ssh tunnel opened 
> with the command
>
> ssh -X -C -c blowfish -l user  target-address
>
> no longer allows high speed rendering on the remote display. to enable 
> high speed rending on the remote display add the '-Y' option to your 
> command line and shown here:
>
> ssh -X -Y -C -c blowfish -l user  target-address
>
> -Y tells the ssh program that the target-address is a trusted X11 source.
>
> Use this option to eliminate the message:
>
> Xlib: extension "RENDER" missing on display "localhost:10:0"
>
> As an option there is an option (possibly undocumented at this time) 
> that allows you to place the line
>
> ForwardX11Trusted yes
>
> in your local /etc/ssh/ssh_config file to tell ssh that all X11 targets 
> are trusted. I don't recommend using it as the -Y option is very easy, 
> but it is there if you need it.

I've included similar text into the document as of 1300PDT, 3 May 2004.

Thanks for sorting that out, Mark.
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- Rick Stevens, Senior Systems Engineer     rstevens vitalstream com -
- VitalStream, Inc.                       http://www.vitalstream.com -
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