I don't think there is a link here.
what you can try is create the launcher, quit the dock, check the launcher
is still here, then disable the dock on startup, and restart.
if the file has gone "as usual", then the dock is cleared and another
application is deleting your files (do you have something like an
anti-virus ?)


2014-05-11 20:11 GMT+02:00 Frank Claessen <email address hidden>:

> Looking at the error messages (dmesg | tail) I see an error concerning
> bumblebeed - nvidia related daemon.
>
> Do you guys know if there are video-card problems that may cause icons
> to disappear?
>
> Frank
>
> On zo, 2014-05-11 at 17:18 +0000, Fabounet wrote:
> > are you sure you don't drag the launcher out of the dock when you click
> on
> > it ? it can happen especially with a mousepad.
> >
> > if you want, you can lock the icons from the right-click menu.
> >
> >
> > 2014-05-11 19:08 GMT+02:00 Frank Claessen <email address hidden>:
> >
> > > Okay,
> > >
> > > I am trying different approaches .... getting back to you soon
> > >
> > > What really bugs me is the fact that I do not find other people
> complaining
> > > about the same problem.
> > >
> > > Cheers
> > >
> > > Frank
> > >
> > >
> > >
> > > On Sun, May 11, 2014 at 6:29 PM, Fabounet <email address hidden>
> wrote:
> > >
> > > > do you have a kid that would make you some prank ? :D
> > > >
> > > > what if you quit the dock (from its menu) ?
> > > > does the file disappear ?
> > > > if not, what if you quit the dock, and then restart ?
> > > >
> > > >
> > > > 2014-05-11 18:01 GMT+02:00 Frank Claessen <<email address hidden>
> >:
> > > >
> > > > > Hi Mathieu,
> > > > >
> > > > > No - I do not drag it from the app-menu. I right click and tell
> cairo
> > > to
> > > > > turn it into a launcher.
> > > > >
> > > > > The same problem occurs with the shortcuts applet.
> > > > >
> > > > > It also disappears and there is no pattern. Sometimes it takes a
> few
> > > > > days and sometimes it disappears that same day.
> > > > >
> > > > >
> > > > > I am trying to figure out whether it makes a difference if the
> laptop
> > > is
> > > > > shutdown with the aforementioned apps (applets) opened.
> > > > >
> > > > > Up to now I have not been able to find a reason
> > > > >
> > > > > Cheers
> > > > >
> > > > > Frank
> > > > >
> > > > >
> > > > > On za, 2014-05-10 at 20:22 +0000, Matthieu Baerts wrote:
> > > > > > Hello and thank you for this bug report! (and sorry for this very
> > > very
> > > > > > long delay!)
> > > > > >
> > > > > > This is strange that this 01firefox.desktop file is removed...
> > > > > > Do you have this bug if you drag and drop the Firefox menu entry
> from
> > > > > the applications menu?
> > > > > >
> > > > > > ** Description changed:
> > > > > >
> > > > > >   cairo dock version: 3.3.2
> > > > > >   distro: linux  mint petra
> > > > > >   desktop env: Cinnamon
> > > > > >   windowmanager: Mutter (Muffin)
> > > > > >   used with: openGl
> > > > > >   graphics card: VGA compatible controller: Intel Corporation
> 3rd Gen
> > > > > Core processor Graphics Controller (rev 09)
> > > > > >
> > > > > >   Bug description:
> > > > > >
> > > > > >   I launch Firefox and immediately turn it into a launcher.
> > > > > >   Checking at .config/cairo-dock/current_theme/launchers does
> show
> > > the
> > > > > 01firefox.destkop file
> > > > > >
> > > > > >   Everything functioning allright
> > > > > >
> > > > > >   After reboot the launcher is gone and so is the
> 01firefox.desktop
> > > > file
> > > > > > -
> > > > > > - output from cairo-dock:
> > > > > > -
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/implementations/cairo-dock-glx.c:_initialize_opengl_backend:179)
> > > > > > -   couldn't find an appropriate visual, trying to get one
> without
> > > > > Stencil buffer
> > > > > > - (it may cause some little deterioration in the rendering) ...
> > > > > > -
> > > > > > -
> > > > >
> > > >
> > >
>  ============================================================================
> > > > > > -     Cairo-Dock version : 3.3.2
> > > > > > -     Compiled date      : Jan 21 2014 23:39:59
> > > > > > -     Built with GTK     : 3.8
> > > > > > -     Running with OpenGL: 1
> > > > > > -
> > > > >
> > > >
> > >
>  ============================================================================
> > > > > > -
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/implementations/cairo-dock-glx.c:_is_blacklisted:54)
> > > > > > -   This card is blacklisted due to a bug with your video
> drivers:
> > > > Intel
> > > > > 4000 HD Ivybridge Mobile.
> > > > > > -  Please have a look there:
> > > > > https://bugs.freedesktop.org/show_bug.cgi?id=55036
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/implementations/cairo-dock-glx.c:_post_initialize_opengl_backend:374)
> > > > > > -   The OpenGL backend will be deactivated. Note that you can
> force
> > > > this
> > > > > OpenGL backend by launching the dock with this command:
> 'cairo-dock -o'
> > > > > > -  OpenGL Version: 3.0 Mesa 9.2.1
> > > > > > -  OpenGL Vendor: Intel Open Source Technology Center
> > > > > > -  OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile
> > > > > > - GldiShortkey '<Super>L' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Super>L' (Log out: Lock the screen)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - GldiShortkey '<Control>F12' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Control>F12' (Log out: Show the logout menu)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - GldiShortkey '<Control>F10' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Control>F10' (Recent-Events: Show/hide the
> Recent
> > > > > Events)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-plug-ins-3.3.2/Indicator-applet3/indicator-applet3.c:cd_indicator3_load:71)
> > > > > > -   could not load indicator from
> 'com.canonical.indicator.sound': No
> > > > > such file or directory
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-plug-ins-3.3.2/Indicator-applet3/indicator-applet3.c:cd_indicator3_load:81)
> > > > > > -   Unable to load com.canonical.indicator.sound
> > > > > > - GldiShortkey '<Control>F3' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Control>F3' (Sound Control: Show/hide the
> Sound
> > > > menu)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - GldiShortkey 'Print' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind 'Print' (Screenshot: Take a screenshot)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - Cairo-Dock - Launcher API Daemon is already running (2226)
> > > > > > - GldiShortkey '<Control>F1' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Control>F1' (Applications Menu: Show/hide the
> > > > > Applications menu)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - GldiShortkey '<Control>F2' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Control>F2' (Applications Menu: Show/hide the
> > > > > quick-launch dialogue)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - GldiShortkey '<Super>Return' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Super>Return' (Control from keyboard:
> > > > Enable/disable
> > > > > the keyboard control of the dock)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - GldiShortkey '<Shift><Ctrl>F4' failed!
> > > > > > - warning :
> > > > >
> > > >
> > >
>  (/build/buildd/cairo-dock-3.3.2/src/gldit/cairo-dock-keybinder.c:init_object:455)
> > > > > > -   Couldn't bind '<Shift><Ctrl>F4' (Show Desktop: Expose all the
> > > > > desktops)
> > > > > > -  This shortkey is probably already used by another applet or
> > > another
> > > > > application
> > > > > > - _cd_find_volume_name_from_drive_name: assertion 'pDrive !=
> NULL'
> > > > failed
> > > > > > - _cd_find_volume_name_from_drive_name: assertion 'pDrive !=
> NULL'
> > > > failed
> > > > > > - _cd_find_volume_name_from_drive_name: assertion 'pDrive !=
> NULL'
> > > > failed
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > ** Bug watch added: freedesktop.org Bugzilla #55036
> > > > >    https://bugs.freedesktop.org/show_bug.cgi?id=55036
> > > > >
> > > > > --
> > > > > You received this bug notification because you are a member of
> Cairo-
> > > > > Dock Devs, which is subscribed to Cairo-Dock Core.
> > > > > https://bugs.launchpad.net/bugs/1302317
> > > > >
> > > > > Title:
> > > > >   new launcher disappears after reboot
> > > > >
> > > > > Status in Cairo-Dock : Core:
> > > > >   Incomplete
> > > > >
> > > > > Bug description:
> > > > >   cairo dock version: 3.3.2
> > > > >   distro: linux  mint petra
> > > > >   desktop env: Cinnamon
> > > > >   windowmanager: Mutter (Muffin)
> > > > >   used with: openGl
> > > > >   graphics card: VGA compatible controller: Intel Corporation 3rd
> Gen
> > > > Core
> > > > > processor Graphics Controller (rev 09)
> > > > >
> > > > >   Bug description:
> > > > >
> > > > >   I launch Firefox and immediately turn it into a launcher.
> > > > >   Checking at .config/cairo-dock/current_theme/launchers does show
> the
> > > > > 01firefox.destkop file
> > > > >
> > > > >   Everything functioning allright
> > > > >
> > > > >   After reboot the launcher is gone and so is the 01firefox.desktop
> > > file
> > > > >
> > > > > To manage notifications about this bug go to:
> > > > >
> https://bugs.launchpad.net/cairo-dock-core/+bug/1302317/+subscriptions
> > > > >
> > > > > _______________________________________________
> > > > > Mailing list: https://launchpad.net/~cairo-dock-team
> > > > > Post to     : <email address hidden>
> > > > > Unsubscribe : https://launchpad.net/~cairo-dock-team
> > > > > More help   : https://help.launchpad.net/ListHelp
> > > > >
> > > >
> > > >
> > > > ** Bug watch added: freedesktop.org Bugzilla #55036
> > > >    https://bugs.freedesktop.org/show_bug.cgi?id=55036
> > > >
> > > > --
> > > > You received this bug notification because you are subscribed to the
> bug
> > > > report.
> > > > https://bugs.launchpad.net/bugs/1302317
> > > >
> > > > Title:
> > > >   new launcher disappears after reboot
> > > >
> > > > Status in Cairo-Dock : Core:
> > > >   Incomplete
> > > >
> > > > Bug description:
> > > >   cairo dock version: 3.3.2
> > > >   distro: linux  mint petra
> > > >   desktop env: Cinnamon
> > > >   windowmanager: Mutter (Muffin)
> > > >   used with: openGl
> > > >   graphics card: VGA compatible controller: Intel Corporation 3rd Gen
> > > Core
> > > > processor Graphics Controller (rev 09)
> > > >
> > > >   Bug description:
> > > >
> > > >   I launch Firefox and immediately turn it into a launcher.
> > > >   Checking at .config/cairo-dock/current_theme/launchers does show
> the
> > > > 01firefox.destkop file
> > > >
> > > >   Everything functioning allright
> > > >
> > > >   After reboot the launcher is gone and so is the 01firefox.desktop
> file
> > > >
> > > > To manage notifications about this bug go to:
> > > >
> https://bugs.launchpad.net/cairo-dock-core/+bug/1302317/+subscriptions
> > > >
> > >
> > > --
> > > You received this bug notification because you are a member of Cairo-
> > > Dock Devs, which is subscribed to Cairo-Dock Core.
> > > https://bugs.launchpad.net/bugs/1302317
> > >
> > > Title:
> > >   new launcher disappears after reboot
> > >
> > > Status in Cairo-Dock : Core:
> > >   Incomplete
> > >
> > > Bug description:
> > >   cairo dock version: 3.3.2
> > >   distro: linux  mint petra
> > >   desktop env: Cinnamon
> > >   windowmanager: Mutter (Muffin)
> > >   used with: openGl
> > >   graphics card: VGA compatible controller: Intel Corporation 3rd Gen
> Core
> > > processor Graphics Controller (rev 09)
> > >
> > >   Bug description:
> > >
> > >   I launch Firefox and immediately turn it into a launcher.
> > >   Checking at .config/cairo-dock/current_theme/launchers does show the
> > > 01firefox.destkop file
> > >
> > >   Everything functioning allright
> > >
> > >   After reboot the launcher is gone and so is the 01firefox.desktop
> file
> > >
> > > To manage notifications about this bug go to:
> > > https://bugs.launchpad.net/cairo-dock-core/+bug/1302317/+subscriptions
> > >
> > > _______________________________________________
> > > Mailing list: https://launchpad.net/~cairo-dock-team
> > > Post to     : <email address hidden>
> > > Unsubscribe : https://launchpad.net/~cairo-dock-team
> > > More help   : https://help.launchpad.net/ListHelp
> > >
> >
>
> --
> You received this bug notification because you are a member of Cairo-
> Dock Devs, which is subscribed to Cairo-Dock Core.
> https://bugs.launchpad.net/bugs/1302317
>
> Title:
>   new launcher disappears after reboot
>
> Status in Cairo-Dock : Core:
>   Incomplete
>
> Bug description:
>   cairo dock version: 3.3.2
>   distro: linux  mint petra
>   desktop env: Cinnamon
>   windowmanager: Mutter (Muffin)
>   used with: openGl
>   graphics card: VGA compatible controller: Intel Corporation 3rd Gen Core
> processor Graphics Controller (rev 09)
>
>   Bug description:
>
>   I launch Firefox and immediately turn it into a launcher.
>   Checking at .config/cairo-dock/current_theme/launchers does show the
> 01firefox.destkop file
>
>   Everything functioning allright
>
>   After reboot the launcher is gone and so is the 01firefox.desktop file
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/cairo-dock-core/+bug/1302317/+subscriptions
>
> _______________________________________________
> Mailing list: https://launchpad.net/~cairo-dock-team
> Post to     : <email address hidden>
> Unsubscribe : https://launchpad.net/~cairo-dock-team
> More help   : https://help.launchpad.net/ListHelp
>