When having installed an incompatible Nvidia driver, I had a poot X11
resolution.
Trying to change the settings, thus trying to run gnome-control-center resulted
in a core dump:

stack trace of thread 3685:
#0  0x00007f83a9a1e380 __GI_____strtoull_l_internal (libc.so.6)
#1  0x00007f83a3b5050d n/a (libcogl.so.20)
#2  0x00007f83a3b505be n/a (libcogl.so.20)        
#3  0x00007f83a3b508c2 n/a (libcogl.so.20)
#4  0x00007f83a3b4edf1 n/a (libcogl.so.20)        
#5  0x00007f83a3b8ab07 n/a (libcogl.so.20)
#6  0x00007f83a3b51021 cogl_context_new (libcogl.so.20)
#7  0x00007f83a4800b6e n/a (libclutter-1.0.so.0)
#8  0x00007f83a4819df3 n/a (libclutter-1.0.so.0)
#9  0x00007f83a482b299 n/a (libclutter-1.0.so.0)
#10 0x00007f83a482b488 n/a (libclutter-1.0.so.0)
#11 0x00007f83b094cf2e g_option_context_parse (libglib-2.0.so.0)
#12 0x00007f83a482c288 clutter_init (libclutter-1.0.so.0)
#13 0x00007f83ae554a6c cheese_gtk_init (libcheese-gtk.so.25)
#14 0x000055da52b91cba main (gnome-control-center)
#15 0x00007f83a9a0434a __libc_start_main (libc.so.6)
#16 0x000055da52b91eda _start (gnome-control-center)

Stack trace of thread 3692:                       
#0  0x00007f83a9ad16db __poll (libc.so.6)
#1  0x00007f83b0940779 n/a (libglib-2.0.so.0)
#2  0x00007f83b094088c g_main_context_iteration (libglib-2.0.so.0)
#3  0x00007f83b09408d1 n/a (libglib-2.0.so.0)     
#4  0x00007f83b0969d8e n/a (libglib-2.0.so.0)
#5  0x00007f83a9da34f9 start_thread (libpthread.so.0) 
#6  0x00007f83a9adbfbf __clone (libc.so.6)

Stack trace of thread 3693:                       
#0  0x00007f83a9ad16db __poll (libc.so.6)
#1  0x00007f83b0940779 n/a (libglib-2.0.so.0)
#2  0x00007f83b0940ac2 g_main_loop_run (libglib-2.0.so.0)
#3  0x00007f83b0f83b16 n/a (libgio-2.0.so.0)      
#4  0x00007f83b0969d8e n/a (libglib-2.0.so.0)
#5  0x00007f83a9da34f9 start_thread (libpthread.so.0) 
#6  0x00007f83a9adbfbf __clone (libc.so.6)

(gnome-control-center-3.34.6-lp152.2.3.1.x86_64)