[Xastir] draft Ubuntu 10.04 install instructions on wiki

[Tom Russo]

On Thu, May 06, 2010 at 01:59:43PM -0600, we recorded a bogon-computron collision of the <russo at bogodyn.org> flavor, containing:
[...] on the subject of right-click locking up X by grabbing the mouse
cursor and never releasing it.  This is a documented problem with Xorg 1.7.5
that apparently "fixed" some broken handling of passive grabs that Motif has
apparently always relied upon.  Motif programs (including legacy commercial 
binaries that cannot be rebuilt) are therefore broken on this version of Xorg
server.  It has supposedly been fixed in Xorg 1.7.6, but that is as-yet 
unreleased, and in fact many systems are now moving to 1.7.5, introducing
this breakage to more and more platforms.

> > Supposedly this has been fixed in OpenMotif on 10.04.  Can anyone here
> > confirm that?
> > 
> > https://bugs.launchpad.net/ubuntu/+source/grace/+bug/552681
> > 
> > I am, as yet, not running 10.04, and have not yet had time to build a 
> > VM to test it out.
> > 
> 
> My bad.  The "fix" was to one package that used motif, not to the underlying
> problem.
> 
> But interestingly, that package seems to have figured out what to do to
> work around the issue.  We might be able to use this.
> 
> http://patch-tracker.debian.org/patch/series/view/grace/1:5.1.22-5/motiflockup.diff
> 
> The trick seems to be to ungrab the cursor after the XmCreatePopupMenu call.
[...]

Well, this just got bumped higher up in my priority list.  The xorg-server
package for my primary system of choice just got bumped up to 1.7.5, which 
means that this problem now exists for me.  I've only upgraded one of my 3 
machines to this port, and find that it's necessary for me to fix the darned
thing so that I can upgrade the one I use Xastir on the most.

I now have one system on which I can test out the supposed work-around, and will
commit it if it works.

-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236        http://kevan.org/brain.cgi?DDTNM
 "It is better to live on your feet than to die with your knees."
  -- Mil Millington on running, in Instructions for Living Someone Else's Life