common source for many apps crashing: KDELIBS4C2A

Binary package hint: kdelibs4c2a

I have the same crashing phenomena happening with various different apps. I include here output from ktorrent, amarok, kate, qtdoc and kded. Comments follow below.

ktorrent:

rybu@rybu-laptop:~/movies$ ktorrent
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
DCOP aborting call from 'anonymous-9598' to 'kded'
kded: ERROR: Communication problem with kded, it probably crashed.
Qt: Warning: X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Qt: Warning: Failed to open device
Qt: Warning: X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Qt: Warning: Failed to open device
DCOP aborting call from 'anonymous-9587' to 'ktorrent'
ERROR: Communication problem with ktorrent, it probably crashed.

rybu@rybu-laptop:~/movies$ ktorrent -v
Qt: 3.3.7
KDE: 3.5.7
KTorrent: 2.2.1

amarok:

rybu@rybu-laptop:~/movies$ amarok
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
Segmentation fault (core dumped)

rybu@rybu-laptop:~/movies$ amarok -v
Qt: 3.3.7
KDE: 3.5.7
Amarok: 1.4.7

kate: (this was working earlier today, but now it crashes)

rybu@rybu-laptop:~/movies$ kate
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
Segmentation fault (core dumped)

rybu@rybu-laptop:~/movies$ kate -v
Qt: 3.3.7
KDE: 3.5.7
Kate: 2.5.7

Since kate was working earlier today it leads me to think that the source of these failures is not so much the individual apps, but some library they have in common.

kword similarly fails. qtdoc similarly fails:

rybu@rybu-laptop:~/movies$ qtdoc
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
DCOP aborting call from 'anonymous-9821' to 'kded'
kded: ERROR: Communication problem with kded, it probably crashed.
WARNING: DCOPReply<>: cast to 'QCString' error
rybu@rybu-laptop:~/movies$ Launched ok, pid = 9827
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 156
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device

rybu@rybu-laptop:~/movies$ kded -v
Qt: 3.3.7
KDE: 3.5.7
KDE Daemon: $Id: kded.cpp 634204 2007-02-16 16:12:23Z lunakl $

running kded without any options causes a failure, too:

rybu@rybu-laptop:~/movies$ kded
FATAL: DCOP communication problem!
Aborted (core dumped)

Let me know if there is anything else I can send your way to help.