Comment # 4 on bug 1049681 from Michal Srb

Thank you for the core files, they are very helpful. The backtraces in both of
them show that the program crashed in `gdk_input_device_new`, called from
`_gdk_input_common_init` because the `XListInputDevices` function returned
null.

First of all, libgtk should be fixed to check for error before attempting to
use the returned value. But more interesting is why does XListInputDevices
return null in first place. One possibility would be allocation failure
(unlikely) or it doesn't understand the response X server sent to it.

Please try to login to IceWM, or some other working environment, and run
commands:
1) xdpyinfo -queryExtensions
2) xinput list --long

Collect the output and attach it here.

Also if you have any unusual input devices connected to your computer, try if
disconnecting any of them helps.