Hello,
After another upgrades (I have the list if anybody is interested), GIMP
starts normally today.
There is still some error during closing, but I'm able to edit pictures.
```
set device 'HID 04d9:1400 Mouse' to mode: disabled
set device 'Virtual core XTEST pointer' to mode: disabled
set device 'A4Tech USB Mouse' to mode: disabled
**
GLib:ERROR:../../../glib/ghash.c:498:g_hash_table_remove_node: assertion
failed: (hash_table->nnodes > 0)
Bail out! GLib:ERROR:../../../glib/ghash.c:498:g_hash_table_remove_node:
assertion failed: (hash_table->nnodes > 0)
Segmentation fault (core dumped) gimp
```
Many thanks to anybody, who fixed it!
The bug report can be closed.
P.