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GUI

Graphical User Interface

Gnome Keyring stopped working...

At some point in time, I upgraded Ubuntu and my Gnome Keyring stopped working. So each time I do ssh I have to enter the password at the prompt and that's a bit annoying after a while (depends how much I access the servers, obviously.)

I read many threads ZERO of them gave me an answer I want to hear. All of them speak of things that do not make sense in that situation. So I tried to install a brand new clean 14.04 server + ubuntu-desktop and guess what... Gnome Keyring is installed and everything makes me think that is is correctly installed (I get the correct SSH_AUTH_SOCK value) and ...

Prevent shutdown from GUI while using ssh from another computer

Polkit-1

This feature works along systemd and loginctl to create sessions for users and check current statuses defined in rules files. This is supposed to be enough to prevent someone from shuting down a computer from the GUI when an administrator is logged in via SSH.

Thus far, I have not been able to find a way to get that to work for like 1 year. I'm going to put information about my research. Various pages talking about, documentation, etc.

First of all, there is a manual page which is likely already installed on your system:

man pklocalauthority

Now a list of pages I have ...

QtTest and "Cannot create a QWidget when no GUI is being used"

Problem

I have to use Qt these days. It's a good system, but there are a few tricks to know about.

As I was starting to write a test, the test needed a lot of numbers but nothing much otherwise. So I decided to limit the #include to a minimum by deleting all of those that I did not need.

The result was this error:

"Cannot create a QWidget when no GUI is being used"

I looked into it and sure enough people talking about it say: Well... where is your GUI?

Great, but I don't see how that helps me in fixing the problem, does it do it for you? Neither?!

Solution

...

Perforce under Windows

Each customer has a different tool and at times the same customer changes the tools they are using to a better one.

Here I now have to use Perforce. In general, it is fine, but this system is much more complicated to use than any other source control system I've used before. Does that make it better? It certainly makes me waste a lot more time!

For one thing, I have to use it under MS-Windows and that does not make it any simpler.

There are two ways to make use of the system: (1) with the GUI interface, which simply helps you with handling long lists and paths and offering most of ...

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    Qt is a multi-platform development system for servers, command line tools, and graphical applications (GUI). It allows you to create objects that will work on many operating systems with very minimal if any changes.

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