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--- os:centos7:faq [2017/08/09 12:07] – seela
+++ os:centos7:faq [2017/08/10 12:59] (current) – seela
@@ Line 40: / Line 40: @@
 ==How do I get the task bar to display my open windows==
-From the Desktop icon at the top left, select and enter in the search bar "tweak tools"
+From the Desktop icon at the top left, select and enter in the search bar "tweak tools" . //Here you can customize your desktop//
-//**Here you can customize your desktop**//
 ----
-==gedit over an ssh - X session Couldn't connect to accessibility bus Failed to connect to socket /tmp/dbus==
+==gedit over an ssh - X session Couldn't connect to accessibility bus Failed to connect to socket /tmp/dbus Error==
-<code>
+On CentOS 7 , you will get the following error if you run gedit remotely: (ssh to another host): WARNING: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-xxxxxx: Connection refused
-/bin/gedit is a Gnome application . On CentOS 7 , you will get the following error is you run the app remotely: (ssh to another host):
+If you are using gedit on your desktop , it will work properly. You can choose to use another editor like emacs or geany.
-"WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-wWZTZGRahD: Connection refused"
-\\
-If you are using gedit on your desktop , it will work properly but if you ssh -X to another host you will get these errors
 You can workaround the "Failed to connect to socket.." by setting the environment variable "NO_AT_BRIDGE to 1"
 eg : setenv NO_AT_BRIDGE 1 and then run "gedit"
+----
+==Fail to launch Tweak Tool - LD_LIBRARY_PATH set to /cs/local.lib==
+This failed because the script is python based and needs a module "gi"
+If a user has his/her environment variable LD_LIBRARY_PATH set to /cs/local/lib, it will fail. The work around is to unset the environment variable and run gnome-tweak-tool . An alternative is to add the "gi" module to our installed python in /cs/local/bin
-</code>
+----
+====Gnome(3) Window Manager - Quick Tips====
+==What is Gnome Shell?==
+Gnome Shell is the graphical shell of the GNOME desktop environment.It provides basic functions like launching applications, switching between windows and is also a widget engine. Gnome Shell also differs from previous versions of GNOME by placing more of an emphasis on applications instead of just windows. The activities overview now groups windows by application.
+==What displays on the desktop by default?==
+At the top, you will see the date at the middle and to the far right a couple more icons like sound, login,etc. The Lassonde Logo and hostname are displayed below.
+In the box displayed under Username, you will enter your eecs username and then click the next button for a password. Enter your eecs account password. Next you click Sign in.
+This will launch your default window manager.
+If you click on the settings icon next to "Sign in", there is a dropdown menu with 2 options, a default and a failsafe. Default desktop is used but if you have a quota problem , you may want to use the "failsafe" desktop option. This will give you a "dumb" terminal to work with.
+----
+==Once logged in , what do I see==
+Your default Gnome Shell presents at the top left, an "Activities Icon", date stamp in the middle and to the far right a "Logout icon"
+On the desktop default , you will see your "Home Dir" icon as well as "Trash"
+----
+==What does the Activities Overview do==
+The Activities Overview allows you to launch new applications, switch windows,
+and move windows between workspaces. There are three ways to open the Activities Overview:
+  * Click on Activities in the top bar
+  * Use the hot corner in the top-left corner of the screen
+  * Press the Super key
+The Activities Icon will display the "Dash Dock" with default applications on the Left side of your desktop. From here you can select "Show Application" for applications your are looking for or use the search bar presented to find the application. The applications bar, known as the dash, only appears on the activities
+screen. Using "Tweak Tool", you can make the Application Menu show on the Top Left
+replacing the Activities menu.
+----
+==How do I get a terminal window==
+Using the Activities Icon, Click on it and you will find your default applications.
+(Firefox Browser, Thunderbird Mail, Terminal and "Show Applications"
+Select Terminal to get one launch
+----
+==What is "Show Applications"==
+"Show Applications" will display all the applications available for your use. They are categorized by groupings such as Audio,Network,Graphics,Utility,etc
+----
+==How do I logout of my session==
+On the Far top right corner of the screen, you will see the logout icon. Once you click on it, you will see your user name. Using the pull-down option on the title bar with your username, you will see Logout.
+Click on logout .
 ----
-====Gnome Window Manager - Tweak Tools====
 ==How to customizing my Desktop Settings==
-In order to customize some of your desktop settings use the Tweak Tools settings
+In order to customize some of your desktop settings use the Tweak Tools settings.
-Using the //Activities Overview//, the sidebar icons, select "//Show Applications//"
+You can find "Tweak Tool" by:
-Type in the Search Bar "//Tweak Tools//" . Alternatively select "Utility Folder"
+a. Using the //Activities Overview//, the sidebar icons, select "//Show Applications//"
-"Tweak Tools" can be located here.
+Type in the Search Bar "//Tweak Tool//" . Alternatively select "Utility Folder"
+"Tweak Tool" can be located here.
+Alternatively , from a terminal prompt, type //gnome-tweak-tool//
 From this window you can do customization to your window manager.
 For example, if you want to re-instate your minimize and maximize button on a terminal window, Select "Windows" "Title Bar Buttons" Turn on Minimize and Maximize
 ----
-== How to obtain a task bar at the bottom of you screen, Select **Extensions**, Windows List ON
+== How to obtain a task bar at the bottom of you screen==
+From "Tweak Tools: Select **Extensions**, Windows List ON
 ----
 ==How can I stop the cursor from blinking?==
 You can disable the cursor blinking for all programs by running this
-command:
+command from a terminal prompt ($)
 //gsettings set org.gnome.desktop.interface cursor-blink false//
 ----
 ==How to get a new terminal==
+There are several ways to get a new terminal.
 a.From a command line, type $ gnome-terminal
-b.You can right-click on the Desktop and select "Open Terminal"
+b.You can right-click on the Desktop and select "Open Terminal". Alternatively "Open Tab"
 c.From any Terminal prompt "Shift Ctrl N"
-----
+d. Right click on the desktop and select "Open Terminal"
+----
+==How to display all my open windows==
+//Alt-tab// . From the Windows tab, you can view your open windows. It only shows windows on the current workspace.
+----
+==Important Keys to note==
+The 'Windows' key provides the overview. Mouse moved to the top left corner
+does the same. The windows key is also referred to as the "superkey"just move
+the mouse cursor to the top left corner of the screen, which functions as a" hot
+corner."
+==How do I switch workspaces==
+Ctrl-Alt-Up/Down: Switches between workspaces.
+----
+==How do I switch between Applications==
+Alt-Tab: Switches between apps.
+----
+==How to Edit the Favorites" Application List==
+This list appears in multiple places, in the same order. This appears as
+Favorites in the "Applications" menu in the top Panel, and as the icons used
+in the "Frippery Panel Favorites", and as the menu in the Overview overlay.
+So, to edit it, use the following steps:
+  * Press the Windows key on your keyboard (aka Super, Meta key) to get the Overview overlay
+  * Right-click on each app in the left side-menu you don't like & remove it
+  * Now open the Show Applications (nine white dots) icon
+  * Right-click on each application icon & select "Add to Favorites"
+  * Drag the Order  of icons up & up as you please
+The order appears in all areas (Panel favorites, Applications->Favorites)
+----