Two processes attempt to mount blank optical discs

[kansasnoob]

I'm not quite following - I assume you're edits apply to "org/gnome/desktop" but I really don't know where to do that.

I know for instance though with the existing dconf bits & pieces in "org/gnome/desktop" that if I set both "automount" and "automount-open" to false then the "media already mounted" warning goes away. The downside is that doing so interferes with mounting usb drives, cameras, etc.

On another note - a lot of simple things that should work just don't - like changing the default video player from Totem to VLC. Why even provide a GUI if it doesn't work?

My bigger issue is I don't want internal partitions automounted but do want optical media with something on it to respond to a set action, be it a vid dvd, audio cd, data disk, ect.
So because upstream could care less I do this -
2 autostart .desktops, first one is immediate & disables automount, 2nd one is delayed a bit & re-enables it.
ex.

[Desktop Entry]
Type=Application
Name=Disable automount
Exec=gsettings set org.gnome.desktop.media-handling automount false
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true

[Desktop Entry]
Type=Application
Name=Enable automount
Exec=gsettings set org.gnome.desktop.media-handling automount true
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
X-GNOME-Autostart-Delay=4

[mc4man]

I'm not quite following - I assume you're edits apply to "org/gnome/desktop" but I really don't know where to do that.

I know for instance though with the existing dconf bits & pieces in "org/gnome/desktop" that if I set both "automount" and "automount-open" to false then the "media already mounted" warning goes away. The downside is that doing so interferes with mounting usb drives, cameras, etc.

On another note - a lot of simple things that should work just don't - like changing the default video player from Totem to VLC. Why even provide a GUI if it doesn't work?

That post was an Ot (off-topic) as the issue you are into here isn't solved by having the automount option enabled.
(- it is somewhat by disabling automount but that isn't a solution
So in other words ignore.. at least as far as the double pop up..

Though I do think if all optical media was seperated from the Gnome automount function then it would be good for all.

The issue you are seeing with changing default video player thru the Details panel *may* another bug that has been filed quite some time ago, figured out to some extent & .... zilch
Rather than go into some verbose descript., it revolves around the fact that some mimes have multiple types, this causes that option severe issues. The most common is mp4 which has 3.

Easiest solution is to delete ~/.local/share/applications/mimeapps.list, then either don't use the option, do manually per mime type via context menu > properties Or just do once & don't touch or use the context menu > properties on a mime with multiple listings like mp4
Here's one report about
https://bugs.launchpad.net/ubuntu/+s...s/+bug/1280794

(- I myself will no longer file any Gnome bugs upstream for various reasons, least of which is they don't care about bugs from Ubuntu users on a Gnome 1 or more versions behind what they use. Has become most times a waste of time..

[VMC]

Using Xubuntu 14.04. I just tried inserting a blank dvd into my usb optical drive. I didn't get any pop-up, but it is mounted:

$ gvfs-mount -o
Monitoring events. Press Ctrl+C to quit.
Drive connected:    'Optiarc DVD RW AD-7231S5'
Drive changed:      'Optiarc DVD RW AD-7231S5'
Drive changed:      'Optiarc DVD RW AD-7231S5'
Volume added:       'Blank DVD-R Disc'
Mount added: 'Blank DVD-R Disc'
Mount changed: 'Blank DVD-R Disc'
Mount added: 'Blank DVD-R Disc'
Mount changed: 'Blank DVD-R Disc'

Then when I opened the "door" to remove the media, I got this:

Drive changed:      'Optiarc DVD RW AD-7231S5'
Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Mount changed: 'CD Drive'
Drive changed:      'Optiarc DVD RW AD-7231S5'
Volume removed:     'CD Drive'
Mount removed: 'CD Drive'
Mount removed: 'CD Drive'
Mount changed: 'CD Drive'

[kansasnoob]

Using Xubuntu 14.04. I just tried inserting a blank dvd into my usb optical drive. I didn't get any pop-up, but it is mounted:

$ gvfs-mount -o
Monitoring events. Press Ctrl+C to quit.
Drive connected:    'Optiarc DVD RW AD-7231S5'
Drive changed:      'Optiarc DVD RW AD-7231S5'
Drive changed:      'Optiarc DVD RW AD-7231S5'
Volume added:       'Blank DVD-R Disc'
Mount added: 'Blank DVD-R Disc'
Mount changed: 'Blank DVD-R Disc'
Mount added: 'Blank DVD-R Disc'
Mount changed: 'Blank DVD-R Disc'

Then when I opened the "door" to remove the media, I got this:

Drive changed:      'Optiarc DVD RW AD-7231S5'
Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Mount changed: 'CD Drive'
Drive changed:      'Optiarc DVD RW AD-7231S5'
Volume removed:     'CD Drive'
Mount removed: 'CD Drive'
Mount removed: 'CD Drive'
Mount changed: 'CD Drive'

Good to know .............. I have a dumb question though, does Xubuntu use gvfs? If you don't mind post the output of:

apt-cache policy gvfs

I plan on checking Lubuntu soon.

[VMC]

Yes, it does. I believe gvfs is used across the board. I wouldn't know its counterpart.

$ apt-cache policy gvfs
gvfs:
  Installed: 1.20.3-0ubuntu1
  Candidate: 1.20.3-0ubuntu1
  Version table:
 *** 1.20.3-0ubuntu1 0
        100 /var/lib/dpkg/status

[QDR06VV9]

Great Minds Think Alike.LOL
I had borrowed a USB CD/DVD writer and got no errors mounting or ejecting and remounting multiple times.
I have a USB install of Lubuntu that i am going to boot to now and see if it shows the same with onboard CD/DVD Drive.
And Drum Roll Please No Errors on Lubuntu
Probably of no concern but when I open the file manager I get "burn:///"

apt-cache policy gvfs
gvfs:
  Installed: 1.24.1-1ubuntu1
  Candidate: 1.24.1-1ubuntu1
  Version table:
 *** 1.24.1-1ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status

$ gvfs-mount -o
Monitoring events. Press Ctrl+C to quit.
Drive changed:      'PIONEER DVD-RW DVRTD11RS'
Drive changed:      'PIONEER DVD-RW DVRTD11RS'
Volume added:       'Blank DVD+RW Disc'
Mount added: 'Blank DVD+RW Disc'
Mount changed: 'Blank DVD+RW Disc'
Mount added: 'Blank DVD+RW Disc'
Mount changed: 'Blank DVD+RW Disc'

And after ejecting

Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Mount changed: 'CD Drive'
Drive changed:      'PIONEER DVD-RW DVRTD11RS'
Volume removed:     'CD Drive'
Mount removed: 'CD Drive'
Mount removed: 'CD Drive'
Mount changed: 'CD Drive'

So when mounting a USB CD/DVD writer what changes?(Clue?)

[kansasnoob]

I have a USB optical drive also and it's not affected, sorry I forgot to mention that earlier. But every PC I've tested on that has an internal SATA or IDE optical drive complains when a blank disc is mounted.

[kansasnoob]

I've been reading some of the gvfs info:

https://wiki.gnome.org/Projects/gvfs/doc

This jumped out at me:

Mount spec

Mount spec is a tiny class that helps to identify and match mounts. It carries key-value pairs, e.g. information about URI scheme used, backend type, hostname, port, username, domain etc.

Specifically during mount operation two instances of mount spec are used. The source one carries requested information and is handed over to the backend's GVfsJobMount operation. It is a backend responsibility to process this mount spec, create a new one based on the source one and send it back to the mount tracker for registration. Backend can filter out some information that are not strictly required and only sets those values required for unique mount identification.

Mount spec matching is done by comparing all its values, it must be completely equal. In practice, this also means that e.g. scheme://hostname/ and scheme://username@hostname/ may result in two mounts even if user enters the same username in a credential prompt. There's another limitation in real applications at the moment, requesting mount on scheme://hostname/ wouldn't match with scheme://username@hostname/ at the beginning, when mount tracker is trying to find existing mount since we don't know what username to use at this point. Consequently, when going through the mount process and username is known, we don't have a tool for canceling current mount operation and redirecting ourselves to an active mount.

Now, if only I had a brain

[ventrical]

Great Minds Think Alike.LOL
I had borrowed a USB CD/DVD writer and got no errors mounting or ejecting and remounting multiple times.
I have a USB install of Lubuntu that i am going to boot to now and see if it shows the same with onboard CD/DVD Drive.
And Drum Roll Please No Errors on Lubuntu
Probably of no concern but when I open the file manager I get "burn:///"

apt-cache policy gvfs
gvfs:
  Installed: 1.24.1-1ubuntu1
  Candidate: 1.24.1-1ubuntu1
  Version table:
 *** 1.24.1-1ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status

$ gvfs-mount -o
Monitoring events. Press Ctrl+C to quit.
Drive changed:      'PIONEER DVD-RW DVRTD11RS'
Drive changed:      'PIONEER DVD-RW DVRTD11RS'
Volume added:       'Blank DVD+RW Disc'
Mount added: 'Blank DVD+RW Disc'
Mount changed: 'Blank DVD+RW Disc'
Mount added: 'Blank DVD+RW Disc'
Mount changed: 'Blank DVD+RW Disc'

And after ejecting

Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Volume changed:     'CD Drive'
Mount changed: 'CD Drive'
Mount changed: 'CD Drive'
Drive changed:      'PIONEER DVD-RW DVRTD11RS'
Volume removed:     'CD Drive'
Mount removed: 'CD Drive'
Mount removed: 'CD Drive'
Mount changed: 'CD Drive'

So when mounting a USB CD/DVD writer what changes?(Clue?)

That's an awesome lubuntu theme you got there sorry for off topic ..

Regards..

[George79]

Ubuntu 15.10 64-bits and this bug is still present. My hardware is a Lenovo GP60NB50 External USB.