Bug report #19580

Undocked panel shifting (sometimes...)

Added by Jean-François Bourdon about 2 years ago. Updated about 2 years ago.

Affected QGIS version:3.0.0 Regression?:No
Operating System:Windows 7 64x Easy fix?:No
Pull Request or Patch supplied:No Resolution:up/downstream
Crashes QGIS or corrupts data:No Copied to github as #:27407


I have a recurring annoyance when I open QGIS: one of my undocked panel on my secondary screen is always shifted some 8 pixels to the right and 26 pixels to the bottom (note: I have the same problem if I only use my primary screen). I have performed several tests to try to isolate the problem and here is how to reproduce it:

-Undock two panels (eg. Layers and Browser), put them anywhere (still undocked and not stacked) but make sure to have a visual reference with the main GUI of QGIS for comparaison.
-Close QGIS and reopen: you should be able to see that both panels are shifted from there original position.

However, it isn't always all undocked panels that are shifted. In an other test with the Processing Toolbox undocked along with the Layers one, the Layers panel shifted and the Processing Toolbox panel simply disappeared! To make it reappeared, I had to redocked the Layers panel (stacked with the Browser) and then reactivate it otherwise the panel didn't want to come back.

I also encountered the panel shifting problem with only Processing Toolbox undocked and the Layers and Browser panel docked...

Finaly, during my experiments, on the reopening of QGIS, a few times the main window was reduced in size (maybe a quarter of my screen) and snapped to the top left corner of my screen but with the maximize/minimize toggle still showing as being maximized (by default, my QGIS is always maximised on startup). I suppose I should open a separate issue for that part it never happened to me before except when playing around to test for my panel shifting problem.


#1 Updated by Nyall Dawson about 2 years ago

  • Resolution set to up/downstream
  • Status changed from Open to Rejected

This is an upstream Qt library issue - we can't fix it in QGIS

#2 Updated by Jean-François Bourdon about 2 years ago

Does the Qt dev team has already been made aware of the issue or is the issue already corrected in a release superior to the v5.9.2 use in QGIS 3.0.0? If not, I'll then fill a bug report on their own issue tracker.

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