Is nautilus meant to run continuously, invisibly?
 

Problem has suddenly gone. Was about to post the below but cheese is now working. But will post it anyway to try to find out if nautilus is supposed to run continuously and invisibly in Gnome. Squeeze. Perhaps try ps -A|grep naut ?



Plugged in webcam for first time on computer. Cheese, the program that uses it, had a blank screen. In its sort of 'options' dialog the webcam was correctly identified but greyed out.

Code:

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[228546.098859] Linux video capture interface: v2.00

[228546.402912] usbcore: registered new interface driver snd-usb-audio

[228546.405200] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0804)

[228546.420349] input: UVC Camera (046d:0804) as /devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/input/input12

[228546.420482] usbcore: registered new interface driver uvcvideo

[228546.420859] USB Video Class driver (v0.1.0)

lugo@debian:~$ lsusb

Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 002 Device 002: ID 046d:0804 Logitech, Inc. Webcam C250

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lugo@debian:~$ cat /proc/asound/cards

 0 [Intel          ]: HDA-Intel - HDA Intel

                      HDA Intel at 0xfe9f4000 irq 22

 1 [U0x46d0x804    ]: USB-Audio - USB Device 0x46d:0x804

                      USB Device 0x46d:0x804 at usb-0000:00:1d.7-5, high speed

lugo@debian:~$ ls /dev/video*

/dev/video0

lugo@debian:~$ lsof|grep video

nautilus  2092        lugo  mem      REG        8,5    29916    440747 /usr/lib/libgstvideo-0.10.so.0.21.0

cheese    6962        lugo  mem      REG        8,5    75004    115211 /usr/lib/gstreamer-0.10/libgstvideoscale.so

cheese    6962        lugo  mem      REG        8,5    26732    115220 /usr/lib/gstreamer-0.10/libgstvideorate.so

cheese    6962        lugo  mem      REG        8,5    29916    440747 /usr/lib/libgstvideo-0.10.so.0.21.0

cheese    6962        lugo  mem      REG        8,5    47720    115224 /usr/lib/gstreamer-0.10/libgstvideofilter.so

cheese    6962        lugo  mem      REG        8,5  106248    115256 /usr/lib/gstreamer-0.10/libgstvideo4linux2.so

lugo@debian:~$ ps -A | grep naut

 2092 ?        00:00:06 nautilus

lugo@debian:~$ killall -TERM nautilus

lugo@debian:~$ ps -A | grep naut

 6977 ?        00:00:00 nautilus

lugo@debian:~$ killall -TERM nautilus

lugo@debian:~$ ps -A | grep naut

 6982 ?        00:00:00 nautilus

lugo@debian:~$ killall -SIGKILL nautilus

lugo@debian:~$ ps -A | grep naut

 6987 ?        00:00:00 nautilus

lugo@debian:~$ ps -A | grep naut

 6987 ?        00:00:00 nautilus

lugo@debian:~$ killall -SIGKILL nautilus

lugo@debian:~$ ps -A | grep naut

 7005 ?        00:00:00 nautilus

lugo@debian:~$ top

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There is no sign of the nautilus GUI anywhere, it is invisible. Tried starting nautilus myself and got the GUI, it was apparently using the pre-existing pid.

So, is an invisible nautilus supposed to happen? It appears to be competing with cheese for the vidio0 device.

I believe that Nautilus serves to manage aspects of the Gnome desktop.

I did just ps -A | grep nautilus on this here CentOS box where I'm using Gnome and, even though I do not have the Nautilus file manager running, here is the output:

Also, in Fluxbox, I have Nautilus on the menu set to start as follows:

option.

Without the "--no-desktop" option, it takes over the desktop, replaces my Fluxbox wallpaper with the wallpaper I have selected in Gnome, and replaces the right-click Fluxbox menu with the right-click Gnome desktop menu. Killing the process restores Fluxbox right-click functionality.

By the way, the light-blue font in your post is difficult to read on the blue LQ background. Restoring the defaults would be easier on the eyes.

Thanks. Sounds like a string and sealing wax job somehow.:)