I've just setup my suse 9.1 . i installed xisp (an internet dialer) being loged on as root and configured it well. I then switched users and even if i su (in a terminal) and then call xisp i get this


geoorge@linux:~> su
Password:
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
linux:/home/geoorge # xisp
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

xisp: Can't open display :0.0
xISP: warning: desired font(s) not found.
Replacements may appear ugly/unintelligible.
Segmentation fault
linux:/home/geoorge #

Why? I mean i ran xisp ok when i log in as root but i can't make it work when i su in a users terminal. Strange? Could it be beacause i haven't set up my vga card? (ati radeon 9600 pro)?

Anyone?

I've set up my card working properly (with 3d acceleration and stuff ) but the problem still remains. It not only happens with xisp but with every application that has graphics . Why????

Although you're greek...
You're linuxer (a Linux user) too, and that's waht counts...

Your problem is the superuser (su) does not have acces to your X-server that runs in your user-priviledged space, but the application you want to execute requires X-server to run, otherwise it segfaults.

You should execute this command from a console with your user account (not as su)

xhost + localhost

Then log in from a console as superuser (su -) and execute this:

export DISPLAY=:0.0

Then you can run your application normaly.

Kind regards,
sbogus

Hope it'll work!

Unfortunately it didn't work! When doing it for the first time i got this

linux:/home/geoorge # xisp
_X11TransSocketINETConnect() can't get address for :0:6000: Temporary failure in name resolution
xisp: Can't open display :0:0--Invalid argument
xISP: warning: desired font(s) not found.
Replacements may appear ugly/unintelligible.
Segmentation fault

and when i rebooted and just su and run xisp here's what i got:

geoorge@linux:~> su
Password:
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
linux:/home/geoorge # xisp
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

xisp: Can't open display :0.0
xISP: warning: desired font(s) not found.
Replacements may appear ugly/unintelligible.
Segmentation fault
linux:/home/geoorge #

Any ideas???

I am really lost about this.... Plz help me!!

The command xhost + localhost should be executed each time you do new start in your Linux, of course after reboot you've lost the X-server privileges for the localhost address, so you get the "Can't open display :0.0"-error.

For the "_X11TransSocketINETConnect() can't get address for :0:6000: Temporary failure in name resolution"-error - it seems the + localhost argument isn't enough to allow access to all the communication resources your app needs. So you might need to use the command xhost + instead. Be warned - this is security risk, as it allows even remote connections to your box, to execute X-applications and to control the X-server resources.

Kid regards,
sbogus

Hmmm.That seems risky enough!!I´ve tried the xhost + command and it worked though.

This application xisp is used to connect me to the internet. It uses pppd of course which as a normal user i can´t run it. Is it safer for me to just chmod 6755 /usr/sbin/pppd and then run xisp as a regular user rather than xhost+ ??

Thanx btw sbogus!You´re the only one helping me!U sure know a lot about linux and especially suse!

Hi Braveheart1980,
thank you for the good words...

As you can see from my signature, I'm still newbie in matter "Linux". Although my first Linux installation was made 10 years in the past on a very old i386 33MHz machine. I remember then, the kernel version was something with 0.9x.yy, the XServer was terribly hard to configure, I got it running in Black/White mode only, and the apps in the distro (it was a "unknown" distro on 5 or 6 1.44MB floppy disks) were so hard to install and get running.
But then I just dumped this Linux and started using WinblowZ... For many years... Then I came back to the what the true OS is - back to the Linux! But I'm still newbie here.

I'm glad to know you found my posts helpful, thanks for that.

Why do you not run this xisp application as service? Or why do you not put it to run with "su" privileges? These ways you avoid the conflict with the missing S-server display and of course the wide opened security hole with "xhost +".
If you like, you can put a small script in the /etc/init.d directory, which will spawn the xisp application after the X-server is up and running (this assumes you have runlevel 5 activated, it will not work with runlevel 3 as there's not yet X-server up and running).

I know SuSE (KDE) has another application ontop of pppd - the KInternet one. On my machine it runs just perfect and uses whatever ISP configuration I made. Currently I'm using an ADSL connection, but previously there was normal 56Kbps modem connection. There's also QInternet application using Qt as GUI engine, but it does the same as KInternet.

Kind regards,
sbogus