How did it work?... what was the problem? On Tue, May 6, 2008 at 12:18 PM, Wiedemann, Shane CIV NAVAIR <shane.wiedemann@xxxxxxxx> wrote: > Success!! You solved my problem! Thank you for taking time to > respond...much appreciated. > Cheers, > Shane Wiedemann > > > -----Original Message----- > From: redhat-list-bounces@xxxxxxxxxx > > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Nigel Wade > Sent: Tuesday, May 06, 2008 9:09 > To: General Red Hat Linux discussion list > Subject: Re: Problem with X server > > > > Wiedemann, Shane CIV NAVAIR wrote: > > So this problem is most likely user error; none the less... > > I have some software (only one other place has this software) that to > > view video windows that the software tries to pop up, you need to use > > the following command to get it to display: > > "software_name -display hostname", or at least that is what I am told. > > I have inserted my hostname where it says "hostname" and verified with > > > "uname" that my hostname is correct. I am not connecting to a remote > > machine, am not on a network and am running the software on a > > stand-alone machine. The vendors of the software do connect remotely, > > > I believe, and they can pop video display windows just fine. Whenever > > > I run the software, I get a message that says "Unable to connect to x > > server". > > I currently have the DISPLAY variable set to ":0.0" and this seems to > > be fine for opening programs, such as NEdit. Any other setting (even > > "hostname:0.0") and I cannot start programs such as editors and other > > programs that open in a separate window. I get errors that say "can't > > > open display" and the like. > > > > When I run the software, if I leave out the command "-display > hostname" > > all video rendering is done behind the scenes, i.e., I can't view it. > > > I have tried replacing "hostname" with all of the following: > > hostname:0.0 > > :0.0 > > hostname:0 > > localhost > > localhost:0.0 > > localhost:0 > > > > Any clues? > > I think you probably need to enable your X display to listen on the > network. > > The software you are using is pretty strange. It should not be necessary > to specify the -display option, it should use whatever DISPLAY is set > to. However, given that it does what it does, you are pretty much at its > mercy. > > By default the X display does not listen for network (TCP) connections, > it allows local connections using a UNIX domain socket. If you have > DISPLAY set to :0 clients will connect on the UNIX socket, but if you > specify a hostname (even localhost) then the connection will be done on > a TCP socket. If the X server isn't listening on a TCP socket then the > connection will fail. This is a quite sensible security precaution (it > prevents any non-local clients connecting to your display, even if you > use the xhost + security disabler) but can cause problems for any > software which expects to be able to connect via a TCP socket. > > To enable the TCP socket you need to modify the X server startup. How > you do that depends on what version of RedHat you are using. For RH 4 it > is set in /etc/X11/gdm/gdm.conf. To enable TCP connections you need to > change the line: > DisallowTCP=true > to > DisallowTCP=false > > In KDE desktop you can also set this using the System Settings->Login > Screen dialog (I presume there's something similar for Gnome). In the > Security tab un-check the box marked "Always disallow TCP connections to > X server". > > > -- > Nigel Wade, System Administrator, Space Plasma Physics Group, > University of Leicester, Leicester, LE1 7RH, UK > E-mail : nmw@xxxxxxxxxxxx > Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555 > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- obed.org.mx -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
