“show desktop” with “hot corners” not working!

How do you mean with 'setsid unity'?

If you make a fresh ubuntu user and login as it, is it ok?

Thanks

I create another user and it do the same.

after login it only works correctly the first time, second time to the hot corner and nothing happens!

setsid unity is for reload compiz.

Try pressing ALT+F2 and run:

unity --replace

Does it work once again?

Hi, I did that and same results.

After unity --replace it only works the first time.

To be more precise it is like this:

I move the mouse to the corner and then i see the desktop, then i move the mouse again to that corner and the windows appear again, but henceforth it doesnt work!

I was able to solve the problem by bruteforce.

Moving every single option in compiz settings manager i did find that when unity was disable then SHOW DESKTOP works as expected with the HOT CORNERS.

So i click every single checkmark in UBUNTU UNITY PLUGIN to finally find that SHOW LIVE PREVIEWS OF WINDOWS IN THE SWITCHER was the one to blame. (After uncheck it then hot corners works as expected, phew!).

Show desktop with hot corners worked for me only once, as others have pointed out.
I was able to solve the problem in Ubuntu 14.04 by installing xdotool:

sudo apt-get install xdotool

...and then adding the following command in the Commands plugin in compiz and binding it the the desired edge:

xdotool key ctrl+super+d

I confirm on 13.1.2015 the method proposed by Ivansan worked perfectly. No matter which tweak tool I used I was not able to get this working for more than once after `compiz --replace` or some other command that restarts the window manager.

However, if an application is maximized it does not register the position of the cursor correctly. How can I modify this? It is nicer to set this through Ubuntu Tweak Tool or likewise for the graphical effect avaiable.