当我运行系统设置时，我看到一个对话框：
抱歉，Ubuntu 16.04 遇到内部错误。
如果您发现更多问题，请尝试重新启动计算机。
我试过：
sudo apt update
sudo apt dist-upgrade
sudo apt remove unity-control-center
sudo apt install unity-control-center
无济于事。
我在 /var/crash 的崩溃日志末尾看到
SegvAnalysis:
Segfault happened at: 0x7ffb68337549: mov (%rsi),%rsi
PC (0x7ffb68337549) ok
source "(%rsi)" (0x00000000) not located in a known VMA region (needed readable region)!
destination "%rsi" ok
SegvReason: reading NULL VMA
SourcePackage: unity-control-center
Stacktrace:
#0 0x00007ffb68337549 in ?? () from /usr/lib/x86_64-linux-gnu/libcogl20.so.20
No symbol table info available.
#1 0x00007ffb6833f838 in ?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
No symbol table info available.
#2 0x00007ffb6837cf42 in ?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
No symbol table info available.
#3 0x00007ffb68336401 in cogl_renderer_connect () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
No symbol table info available.
#4 0x00007ffb6862a9ef in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#5 0x00007ffb68643523 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#6 0x00007ffb68654979 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#7 0x00007ffb68654b80 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#8 0x00007ffb9753ff67 in g_option_context_parse () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#9 0x00007ffb68655928 in clutter_init () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#10 0x00007ffb699c94fc in cheese_gtk_init () from /usr/lib/x86_64-linux-gnu/libcheese-gtk.so.25
No symbol table info available.
#11 0x00007ffb6a314e33 in g_io_module_load () from /usr/lib/x86_64-linux-gnu/unity-control-center-1/panels/libuser-accounts.so
No symbol table info available.
#12 0x00007ffb97aaff36 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#13 0x00007ffb978326a1 in g_type_module_use () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007ffb97ab0315 in g_io_modules_load_all_in_directory_with_scope () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#15 0x000000000040a15a in ?? ()
No symbol table info available.
#16 0x00007ffb9782f359 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#17 0x00007ffb9781131b in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#18 0x00007ffb97812c01 in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#19 0x00007ffb97813534 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#20 0x0000000000407493 in main ()
No symbol table info available.
StacktraceAddressSignature: /usr/bin/unity-control-center:11:/usr/lib/x86_64-linux-gnu/libcogl.so.20.4.1+31549:/usr/lib/x86_64-linux-gnu/libcogl.so.20.4.1+39838:/usr/lib/x86_64-linux-gnu/libcogl.so.20.4.1+76f42:/usr/lib/x86_64-linux-gnu/libcogl.so.20.4.1+30401:/usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0.2400.2+6b9ef:/usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0.2400.2+84523:/usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0.2400.2+95979:/usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0.2400.2+95b80:/lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2+54f67:/usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0.2400.2+96928:/usr/lib/x86_64-linux-gnu/libcheese-gtk.so.25.0.3+74fc:/usr/lib/x86_64-linux-gnu/unity-control-center-1/panels/libuser-accounts.so+24e33:/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4800.2+60f36:/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.4800.2+366a1:/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4800.2+61315
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
cogl_renderer_connect () from /usr/lib/x86_64-linux-gnu/libcogl.so.20
?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
Tags: xenial
ThreadStacktrace:
.
Thread 5 (Thread 0x7ffb8caee700 (LWP 21744)):
#0 0x00007ffb96fff70d in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
但我猜它没有提供太多信息。