RootX11ErrorHandler

ROOT
1

Hi,

I am connecting to a linux machine with cygwin (>ssh -X -l gbruno lxplus.cern.ch). On the remote machine, when I try launch root 4.04 or higher I get the following error message:

]Error: illegal pointer to class object gClient 0x0 797 :0:
*** Interpreter error recovered ***
Error in : BadAtom (invalid Atom parameter) (XID: 39, XREQ: 18)

And when I try to open a root file I get the following error:

Error in : BadAccess (attempt to access private resource denied) (TGFrame XID: 58, XREQ: 102)
TGFrame: 58

This last one seems unrecoverable in my root session.

Any suggestion?

Thanks a lot
Giacomo

2

Hi Giacomo,

What about of using ssh -Y … ? Do you get errors?

Cheers, Ilka

3

Hi Illka,
it works. Thanks! could I ask you what is the difference? the man page does not even mention the -Y option
Cheers
Giacomo

4

Hi Giacomo,

This argument allows X11 forwarding (for security use of graphical applications over the network). You are right that ssh man page does not mention this option - my knowledge comes from the RootForum posts.

Cheers, Ilka

++ With Google’s help I found that “-Y Enables trusted X11 forwarding. Trusted X11 forwardings are not subjected to the X11 SECURITY extension controls.” and some more information at openbsd.org/cgi-bin/man.cgi? … &sektion=1