I have installed FPC 3.0.4/Lazarus 2.0.6 from sources retrieved by SVN onto a repurposed HP EliteBook 8440w laptop where I have installed Ubuntu 18.04.4 LTS.

Lazarus starts up OK and I can build an application, which I have created in Windows (project sources retrieved via SVN onto the laptop). Things seem to work pretty well, if not perfect.

However I have been annoyed by one thing that is really disturbing:

If I minimize Lazarus using the minimize button in the upper right corner of the main window (where the menu and all component tabs are) then all other windows are also minimized as expected. But if I restore the main window by clicking on its placeholder in the bottom bar, then ONLY that window appears, all others remain minimized and I have to click on each and every of these to get them back.

What have I missed here? Is there a setting I have overlooked?

I have never seen this in Windows and also not on RaspberryPi with Raspbian Wheezy-Jessie-Pixel-Buster. All have worked the same as on Windows in this respect.

I use /lazarus/components/anchordocking/design/anchordockingdsgn.lpk and there is in Kontextmenue of minimized App "restore all"

Perhaps useful ?!!

Changing from top- to bottom-posting to make it more readable..

Well, I don't know...

The way Lazarus works now is like Delphi7 used to work and I was put off when they introduced Delphi2006, with the integrated window where the components panel disappeared too. I suspect that the anchordocking does just what D2006 did?

I just wondered why in Ubuntu the minimize-restore operation does not work when it does on Windows and Raspbian...

Especially if there is a user setting I have overlooked somewhere?

El 12/4/20 a les 11:45, Bo Berglund via lazarus ha escrit:

I suppose it depends on the window manager/desktop environment. FWIW it doesn't happen here with kubuntu 19.10 and lazarus 2.0.6 (though I compiled it with fpc 3.2RC1 instead of 3.0.4 but I don't think that makes a difference).

Bye

I have a standard Ubuntu 18.04.4 LTS desktop install except I have also installed the classic gnome extension in order to get an application menu, which I am used to.
I did this:

sudo apt install gnome-shell-extensions

Then I had to log out and back in after changing the desktop I was logging on to on the login screen.

Now my Lazarus shows up in the Programming category of the main menu as it should.

If I log on to the normal Ubuntu then I have to search for Lazarus every time I want to start it, which is very strange.

I did a test now and logged on to the standard desktop and started Lazarus.
Then I minimized it and when I clicked on the Lazarus icon on the sidebar (where running applications are shown) a new panel popped up where I could choose from the 5 different windows Lazarus had created...
The one I clicked on would show up alone, not very useful...

Even if I select the main window then only that will be shown.

I don't know if this is a problem with Ubuntu or with Lazarus on Ubuntu but it is rather annoying in any case.
A workaround would be useful (maybe use Linux Mint instead?)

Bo Berglund wrote

I don't know if this is a problem with Ubuntu or with Lazarus on Ubuntu but it is rather annoying in any case.

I found a setting I believed to handle this:
Tools/Options/Window
There is a setting "Show single button in TaskBar"

It looked promising but I checked it and all looked and worked as before even after restarting Lazarus...

What is the purpose of this setting?

El 12/4/20 a les 22:24, Bo Berglund via lazarus ha escrit:

As I said I use kubuntu (ubuntu with kde desktop) where this problem doesn't arise (but only if I restore the main window, any other window only restores itself), so I suppose it's a similar feature of the kde taskbar, its purpose it to show only one instance of various similar windows on the taskbar to save space.

Bye

...

Hi Luca!
I have now solved this problem by installing the MATE desktop handler in my Ubuntu 18.04 laptop!
https://itsfoss.com/install-mate-desktop-ubuntu/

After it was done I now have a much more useful environment (in my view as a programmer in any case) and there is no more minimize/restore problem. It works exactly as in Windows and Raspbian Buster concerning the window handling.

So I did not have to start over altogether but can still keep what I have done so far.