System hangs when kstart used in autostart script

[Paul Abrahams]

I was trying to use kstart to start three programs in three different desktops after login, like this:
  kstart --desktop 1 firefox
  kstart --desktop 2 kmail
  kstart --desktop 3 konsole
After (apparently) executing the script, the system hung solidly. I tried this more elaborate version of the same thing:
  #! /bin/sh
  kstart --desktop 1 firefox &
  kstart --desktop 2 kmail &
  kstart --desktop 3 konsole &
  exit
but the behavior was the same.

I'm running Kubuntu 14.10 with release 4:4.14.2-0ubuntu1~ubuntu14.10~ppa1 of kde-runtime.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
CurrentDesktop: KDE
Date: Mon Jan 19 18:12:06 2015
InstallationDate: Installed on 2015-01-10 (9 days ago)
InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 14.10 (utopic) reached end-of-life on July 23, 2015.

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