https://bugs.kde.org/show_bug.cgi?id=374090
--- Comment #3 from unsuspicious.fakename+kdeb...@gmail.com ---
Finally, after all this time trying, I found *something* slightly more tangible
today:
Steps to reproduce:
- Set Desktop Grid Border width to 0
- On a 9x9 Desktop grid
- Panel hidden
- In Desktop grid view, drag Desktop 1 to desktop 3 to switch them.
- Now fill the column (1, 4, 7) with 2 Konsoles each (edge-tiled) so together
they fill the Desktops completely.
- Again in Desktop grid view: Click and hold at the left edge of the screen
right between Desktops 1 and 4.
- Move 1-3 pixels up and down.
+--------------+
| 1 | 2 | 3 |
| | | |
+-> +--------------+
| 4 | 5 | 6 |
| | | |
+--------------+
| 7 | 8 | 9 |
| | | |
+--------------+
Actual result:
Desktops 1, 4 AND 7 are shuffled.
Expected result:
Ideally nothing (or at least only 1 and 4 affected, NOT 7)
And steps to reproduce worse:
- Add more desktops.
- Change the positions of desktops around randomly, to simulate prolonged
working with this bug.
- Fill all desktops with windows (some fullscreen, some tiled in various ways.
- In grid view, place the mouse pointer on the corners where 4 desktops meet or
on the borders where 2 meet. Click, hold, drag. Play around with different
ones.
Actual result:
Desktops seem to jump around randomly, sometimes up to 5 at a time. Not just in
the vicinity, but also all across the board, some of them nowhere near the
mouse pointer.
Expected result: Ideally, nothing happens (or at least not to so much at once)
After some more "experimenting", it looks to me like there are at least two
problems:
1) There's something wrong with [Original_Desktop_Position] and
[Current_Desktop_Position] getting mixed up somehow during the
drag&drop-action, which causes weird jumps. Haven't been able to figure out
exactly how - maybe the "drag-from" takes [Current_Desktop_Position] and the
"drag_to" takes [Original_Desktop_Position] or something like that.
2) The areas where GUI actions are ambiguous are way too big for this
Desktop-Drag&Drop feature when "Desktop Border" has a low value. With a lot of
Desktops (12+?), increasing the value is not a viable solution since it shrinks
the "Thumbnails" too much. Is there a way to deactivate that Desktop Drag&Drop
feature for people who don't want to sacrifice "screen size" for for it?
I can't tell for sure if accidental clicks on those areas are the actual & sole
reason why my Desktops seem to shuffle themselves, but this is the most solid
theory I've been able to come up with so far.
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