I am running KDE 4.6.5 and have an ati video card (if that matters)

To reproduce this bug have your desktop to 1024x768 and open Dolphin in the upper left of the screen and resize it to about 800x600. Now run a full screen application like Tower Toppler. When you exit from Tower Toppler, Dolphin will be resized.

Is there a setting somewhere to disable automatic window resizing in KDE?

Thanks in advance.

Does the full screen application in question resize your screen?

bcooksley wrote:Does the full screen application in question resize your screen?

Yes. It resizes the screen to 640x480 I believe.

I tried disabling all the effects in kde control center->workspace behavior->screen edges but still no joy.

The Dolphin window is being resized because the screen is too small (640×480). The solution would be to make the full screen application run at a higher resolution (bigger than the Dolphin window's size).

Shouldn't this be happening to all applications with window sizes larger than 640×480?

One possible solution might be to have kwin force the size of Dolphin to be a specific size (through the alt+f3 menu), but I don't know how it'd work in this case.

karthikp wrote:The Dolphin window is being resized because the screen is too small (640×480). The solution would be to make the full screen application run at a higher resolution (bigger than the Dolphin window's size).

Running a full screen application shouldn't affect the desktop. This is the first KDE version that did this since I started using KDE with version 3.1. IMHO KDE shouldn't resize the windows by itself at all or the user should at least be able to turn it off.

karthikp wrote:Shouldn't this be happening to all applications with window sizes larger than 640×480?

It does happen with other screen resolutions. I just gave an example to duplicate the problem with a popular game.

karthikp wrote:One possible solution might be to have kwin force the size of Dolphin to be a specific size (through the alt+f3 menu), but I don't know how it'd work in this case.

Yes, that is a workaround but I would like to be able to maximize Dolphin when needed without going through several mouse clicks. Kwrite is affected by this also. There are probably several others I haven't found yet. I sometimes have 20 or more instances of Dolphin and Kwrite open at once. You can see the mess this makes.

If the full screen application doesn't change the resolution of the screen, does this happen? You can use an application which can play videos such as Dragon Player, VLC or MPlayer to test this.

bcooksley wrote:If the full screen application doesn't change the resolution of the screen, does this happen? You can use an application which can play videos such as Dragon Player, VLC or MPlayer to test this.

No, it does not change existing windows if the full screen application keeps the same the screen resolution as the desktop. I tried VLC with F11 3 times and Dolphin just sat there unchanged. I ran Tower Toppler once and it maximized Dolphin on exit.

Ok, the issue in this case is likely that Tower Toppler reduces the screen resolution below the current size of the Dolphin window, causing it to switch to a maximised state. When it restores the higher resolution, it doesn't change back out of it's maximised state.

The automatic change over to a maximised state could be considered a bug, but the non-restoring of the window size cannot be.