Forum > Windows (32/64)
Editor Ghost window when exiting Lazarus
Bruce44:
Hello
When exiting Lazarus IDE, most of the time, The main Lazarus Panel stays displayed on screen (see attachement).
There is absolutely no more Lazarus processes in memory.
When using tools to display all existing Windows, I can't find any window that has 'Lazarus' as a Caption text
Nothing happens when clicking on the different icons of the lazarus bar.
I can't resize the window. I can't move it, close it.
If I click on the location of the top bar (for instance an icon behind it), it acts as if the Lazarus window doesn't exist and execute the action behind it !
It is really a ghost window that seems to exist nowhere... except on screen.
But this is just annoying when using some software because Lazarus Windows bar can hide some useful info.
Power OFF, then ON the screen doesn't change !
After a lot of searchs, the only solution I found is to kill the 'dwm.exe' process in the task manager.
It resets the screen display when restarting automatically.
After reset, the Lazarus ghost window disappears.
I think it has someting to see with HDR monitor.
Did someone already have the same troubles ?
Does someone know why Lazarus IDE generates this ghost window (I never had this behavior with the numerous software I use on the same monitor)
Zvoni:
By any chance: Do you have animations in Win11 activated?
Settings > Accessibility > Visual Effects
Thaddy:
Looks like a display driver issue. I have seen that before. Also with other programs.
There's a refresh missing. On windows do right-click|refresh (ctrl-r does not work on all windows versions)
Bruce44:
--- Quote from: Zvoni on June 03, 2026, 09:53:42 am ---By any chance: Do you have animations in Win11 activated?
Settings > Accessibility > Visual Effects
--- End quote ---
Yes I have ! So I remove Visual effects to check
After somes tries, I can't reproduce this problem.
But, it didn't appear systematically.
I will revert if it appears again
Thaddy:
If you happen to have the issue with an AMD Radion driver, just update the driver: I did that because of the same issue about 10-12months ago.
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