shows X error when running from terminal

[Prashanth]

Binary package hint: umbrello

When i run Ubmrello or Opera or Skype, I get the following error printed on the terminal. The application however opens up fine and works well too. Any idea why this error is printed?
~/$ umbrello
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode: 143
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode: 143
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
DCOPClient::attachInternal. Attach failed Could not open network socket
Link points to "/tmp/ksocket-prash"
Link points to "/tmp/kde-prash"
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode: 143
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode: 143
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
kbuildsycoca running...
Reusing existing ksycoca
kio (KService*): WARNING: The desktop entry file /usr/share/applications/DefaultPlugins.desktop has Type=Link instead of "Application" or "Service"
kio (KService*): WARNING: Invalid Service : /usr/share/applications/DefaultPlugins.desktop
kio (KSycoca): ERROR: No database available!

[Manuel López-Ibáñez (manuellopezibanez)]

Thanks for your report.
A workaround to remove the "X Error: BadDevice" warnings may be to comment out the lines:

        InputDevice "stylus" "SendCoreEvents"
        InputDevice "cursor" "SendCoreEvents"
        InputDevice "eraser" "SendCoreEvents"

in /etc/X11/xorg.conf

As for the other errors, could you check whether they appear for different applications or just for a particular one? Then, could you open a new bug report with your findings? Thanks.