kdesu kate /etc/apt/sources.list
X Error: BadDevice, invalid or uninitialized input device 157
  Major opcode:  148
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 157
  Major opcode:  148
  Minor opcode:  3
  Resource id:  0x0
Failed to open device