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GUI program vanished from both Desktops/Task Bar, but still in Process list, not in Tree

asked 2013-10-17 20:51:52 -0600

megabyte gravatar image

updated 2013-10-19 17:17:36 -0600

I had Firefox running, then (possibly) as a result of a key combination I don't recall, it quickly vanished from screen and Task Bar/Window List.

ps ax | grep firefox returns the below+the unneeded grep firefox line (Both ps and the GUI Task Manager, show firefox with seemingly unchanging RSS, VM-SIZE and 0% CPU usage):

johndoe      1916 36.6 14.0 923772 504372 tty1    Sl   13:30  12:15 firefox


pstree | grep firefox returns:

init─┬─2*[ROX-Filer───firefox───25*[{firefox}]]

Questions:

  1. How can I tell if (as I understand is possible) the program has been detached from the GUI, but is still running?

    a. If this is the case, how can I try and reattach this process, to at least save my work?

  2. How can I tell if the program is instead just "Not responding"?

  3. What logs can be consulted, if any, for A) When/How/details of (something like) 1. happened?, B) Keystrokes that caused (something like) 1.?, and C) Why a program closed?

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Comments

from the manpage tree - list contents of directories in a tree-like format.

randomuser gravatar imagerandomuser ( 2013-10-19 02:32:12 -0600 )edit

Oops. You are correct. Please see updated+corrected question.

megabyte gravatar imagemegabyte ( 2013-10-19 13:07:43 -0600 )edit

@zaaj - Please see my question again. It is not in the "Task Bar/Window List".

megabyte gravatar imagemegabyte ( 2013-10-19 16:38:45 -0600 )edit

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answered 2013-10-19 15:05:31 -0600

zaaj gravatar image

In Gnome 3, minimizing a window makes it show up with a faint high-lighted background on the favorites bar in "Activities" and it should still show up in the Alt-Tab list of active programs. Minimizing can be performed by the keyboard shortcut "Super-H", which on my Microsoft keyboard is the Windows-key + H (I guess for Window, Hide).

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Asked: 2013-10-17 20:51:52 -0600

Seen: 406 times

Last updated: Oct 19 '13