Nemo: [Regression] Nemo 3.4 doesn't handle desktop

[X0rg]

Hello,

After upgrading Nemo to v3.4.2, my desktop is not more handled by Nemo (I can't see desktop icons, right clic on desktop doesn't open the menu, and I can't do a selection on desktop).

When I run nemo -n from a terminal, I've got this error:

(nemo:6058): Gtk-WARNING **: Failed to register client: GDBus.Error:org.gnome.SessionManager.AlreadyRegistered: Unable to register client

With GDB:

$ G_DEBUG=fatal_warnings gdb nemo
GNU gdb (GDB) 7.12.1
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and "show warranty" for details.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from nemo...done.
(gdb) run -n
Starting program: /usr/bin/nemo -n
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe8995700 (LWP 7385)]
[New Thread 0x7fffe3fff700 (LWP 7386)]

(nemo:7379): Gtk-WARNING **: Failed to register client: GDBus.Error:org.gnome.SessionManager.AlreadyRegistered: Unable to register client

Thread 1 "nemo" received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff4d8d221 in ?? () from /usr/lib/libglib-2.0.so.0
(gdb) thread apply all bt

Thread 3 (Thread 0x7fffe3fff700 (LWP 7386)):
#0  0x00007ffff3f382bd in poll () at /usr/lib/libc.so.6
#1  0x00007ffff4d879b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff4d87d42 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff536ef86 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007ffff4daf295 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff4201297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff3f4225f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffe8995700 (LWP 7385)):
#0  0x00007ffff3f382bd in poll () at /usr/lib/libc.so.6
#1  0x00007ffff4d879b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff4d87acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4d87b11 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffff4daf295 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff4201297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff3f4225f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff7f1b6c0 (LWP 7379)):
#0  0x00007ffff4d8d221 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007ffff4d8f851 in g_log_writer_default () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff4d8ddbc in g_log_structured_array () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4d8e0b9 in g_log_structured () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffff6cded8e in  () at /usr/lib/libgtk-3.so.0
#5  0x00007ffff6a247d1 in  () at /usr/lib/libgtk-3.so.0
#6  0x0000000000431b31 in nemo_application_startup (app=0x7db130) at nemo-application.c:433
#7  0x00007ffff5060f75 in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#8  0x00007ffff507295c in  () at /usr/lib/libgobject-2.0.so.0
#9  0x00007ffff507bbdc in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#10 0x00007ffff507bfbf in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#11 0x00007ffff5342372 in g_application_register () at /usr/lib/libgio-2.0.so.0
#12 0x000000000045cbb5 in nemo_main_application_local_command_line (application=0x7db130, arguments=0x7fffffffdf58, exit_status=0x7fffffffdf54) at nemo-main-application.c:572
#13 0x00007ffff5342f02 in g_application_run () at /usr/lib/libgio-2.0.so.0
#14 0x0000000000430870 in main (argc=2, argv=0x7fffffffe0b8) at nemo-main.c:104
(gdb) c
Continuing.
[New Thread 0x7fffe35f1700 (LWP 7457)]
[New Thread 0x7fffe2df0700 (LWP 7459)]
[New Thread 0x7fffe198f700 (LWP 7460)]
[New Thread 0x7fffe118e700 (LWP 7461)]
[Thread 0x7fffe118e700 (LWP 7461) exited]
[Thread 0x7fffe198f700 (LWP 7460) exited]
[Thread 0x7fffe2df0700 (LWP 7459) exited]
[Thread 0x7fffe35f1700 (LWP 7457) exited]
[Thread 0x7fffe3fff700 (LWP 7386) exited]
[Thread 0x7fffe8995700 (LWP 7385) exited]
[Inferior 1 (process 7379) exited normally]

Informations

• Arch Linux, with Linux 4.11.3
• GTK 3.22.15
• Nemo 3.4.2
• Mate 1.18

As you can see, I'm using the Mate desktop, but it was working with v3.2.2.

Question
When I start the nemo-desktop process, it works.
The nemo -n command should manage the desktop automatically, right?

If you need more informations, please let me know.

[leigh123linux]

nemo-desktop manages the desktop now.

Add nemo-autostart to org.mate.session gnome-compat-startup

gsettings set org.mate.session gnome-compat-startup "['keyring', 'smproxy', 'nemo-autostart']"

[X0rg]

Ok, thank you very much.

In fact, adding nemo-autostart in gnome-compat-startup key doesn't work.
But I've copied /usr/share/applications/nemo-autostart.desktop into ~/.config/autostart, and then removed the OnlyShowIn=X-Cinnamon; line in the copied file, and it did the trick.