Stuart,

Are you logged-in as root or are you working in a root shell ( using su or sudo)? Depending on your security settings X-windows may not permit a program that is run from a root shell to access the display, which belongs to the user logged-in through X-windows.

I get around the administrator access issue by installing CCP4, and all other non-OS software, with non-root ownership, a non-root administrator account, which shares the environment with all other users. For one thing, I do not want to source the multitude of /etc/csh.cshrc and .bashrc files as root. I am sure that others have different, and probably more elegant, solutions to this problem.

PS. It also seems that the TCL/TK environment is not set in the root shell you are using.

Good luck,
Mark

On Mon, 2009-12-14 at 16:51 -0600, Stuart Endostreeter wrote:

Fellow users,

I just installed v6.1.2 on Ubuntu 9.0.4 today and have run into the following problem when I try to run ccp4i for the first time as root to configure the program:

root@########:/home/########/Documents# ccp4i
No protocol specified
Application initialization failed: couldn't connect to display ":0.0"
Error in startup script: can't read "tk_version": no such variable
    while executing
"catch "set system(TK_VERSION) $tk_version""
    (file "/usr/local/ccp4/ccp4-6.1.2/ccp4i/bin/ccp4i.tcl" line 1)
    (file "/usr/local/ccp4/ccp4-6.1.2//bin/ccp4i" line 1)

The odd thing is that I can launch ccp4i just fine as a regular user, but then of course I get the message about the first time ccp4i has been run and the need to configure it, which requires administrator level access.

Anyone have any ideas?

Thanks,
Stuart Endo-Streeter

Yours sincerely,

Mark A. White, Ph.D.
Assistant Professor, Dept. Biochemistry and Molecular Biology,
Manager, Sealy Center for Structural Biology and Molecular Biophysics X-ray Crystallography Laboratory,
Basic Science Building, Room 6.660 C
University of Texas Medical Branch
Galveston, TX 77555-0647
Tel. (409) 747-4747
Cell. (409) 539-9138
Fax. (409) 747-4745
mailto:[log in to unmask]
http://xray.utmb.edu
http://xray.utmb.edu/~white