GDM 2.24.1 and XDMCP

[Uwe Laverenz]

On Sat, Jan 31, 2009 at 04:51:51PM -0500, Joe Marcus Clarke wrote:

> > - There are patches for gdm 2.24.1 that seem to solve the XDMCP-problem
> >   on Fedora 10. I'm not a programmer, but I tested the patches and
> >   managed to get gdm listen to UDP 177 again, but another problem
> >   came up with the patched version of gdm that I wasn't able to solve.
> >   So I was forced to give up for now.
> 
> What problems did you see?

I have tried to make the xdmcp-patch work from the files-subdirectory in
x11/gdm. The patched gdm starts and actually listens on UDP 177 but as
soon as you start it displays:

gdm-binary[45684]: WARNING: Unable lookup numeric info: Non-recoverable
failure in name resolution

You get lots of these messages as soon as you try to connect via XDMCP,
followed by a final "Illegal instruction".

I guess that this xdmcp-patch collides with one of the FreeBSD-patches
somewhere, otherwise it wouldn't work for Fedora?!

Anyway, since I'm not a programmer, I don't know how to fix this at this
time. If you want to take a look, I have put the new/changed patches
online: http://www.laverenz.de/gdm-2.24-xdmcp-files.tar.gz

To be honest, I think that this should rather be fixed upstream and that
nobody should use gdm >= 2.22 in production until it works at least as
well as 2.20 does.

GDM 2.20 works fine with Gnome 2.24, so maybe you could re-add it to the
ports tree for all people that want to use XDMCP.

Thanks,
Uwe