Re: Gdk: x i/o error

[Owen Taylor <otaylor redhat com>]

Dave Linder <dwl@apmaths.uwo.ca> writes:

> Howdy,
> 
> Whenever I try and run a gtk application I get an error
> message like
> 
>    Gdk-ERROR **: an x io error occurred
>    aborting...
>    IOT trap/Abort
>
> This has happened for about 4 or 5 apps, all of which seemed 
> to compile just fine, including the GTK FAQ file's 
> helloworld.c example.  I am using glib/gdk/gtk 1.1.6, which
> all built and installed fine.  But the problem also
> ocurred with v1.0.6.  I have ensured that no old versions
> of these librarie, or header files, are mixed up with the
> version I have built with.  I have tried running as root, also.
> 
> I do not otherwise have the GNOME window-manager/desktop system 
> installed.
> 
> More gruesome details -- when I try to run the apps the outline
> of the window does appear for some of these apps, but it dies
> when I (left-)click to place the window.  Turning off the ability
> of the Afterstep window manager to allow interactive placement of 
> windows does not help.  Using fvwm doesn't help either.
> 
> But using olwm window manager allows hello_world example to run,
> but not others apps. (!)
> 
> I use the Afterstep window manager, XFree86-3.3.2 SVGA server 
> at 1024x768 and 16bpp, with libc 5.3.12, libm 5.0.6, gcc v2.7.2, 
> and kernel 2.0.34.
> A setup otherwise working just fine..  :)
> 
> Any clues or ideas welcome, thanks!  I didn't see this in the FAQ
> or this list's archives.

 - Try upgrading to 1.1.7

 - Sometimes problems like this occur when modules compiled
   with and without thread support are mixed, although presumably
   that isn't the problem here, since you aren still using
   libc5. 

 - If neither helps, try running the program under a debugger
   with the --sync flag and see if the error is occurring
   in a consistent place.

   gdb ./testgtk
   (gdb) r --sync
   [ ...crash... ]
   (gdb) where

Regards,
                                        Owen