Bug 363512

Summary:	[dual screen] can't move windows because invisible barrier in the desktop
Product:	[Plasma] plasmashell	Reporter:	Valdas <zmogas>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED FIXED
Severity:	normal	CC:	bshah, justin.zobel, ph.wolfer, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.6.4
Target Milestone:	1.0
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Screenshot of screen config dialog Resizing: mouse hits invisible wall Moving: mouse hits invisible wall. Moving wider window: mouse hits invisible wall. Adjusting height of Taskabar: before Adjusting height of Taskabar: after

Description Valdas 2016-05-25 15:41:05 UTC

I have two monitor setup (see screenshot of config dialog "dual_screen_config.png"):
 - primary "Laptop screen" with resolution 1920x1080;
 - smaller secondary "VGA-1" with resolution 1366x768;
 - secondary is on left side of primary;
 - these two monitors forms one big desktop.

 I can resize window by dragging right edge of window to right till mouse cursor reaches invisible wall somewhere in the middle of desktop (see screenshot "cant_resize.jpg": cursor hits invisible wall).
 If I want to move window to right by dragging caption bar of window then I also experience mentioned invisible wall: window moves until mouse cursor reaches certain X coordinate (see screenshots "cant_move_1.jpg" and "cant_move_2.jpg": cursor hits invisible wall).

 This bug I experienced also in v5.5.5.

Reproducible: Always

Comment 1 Valdas 2016-05-25 15:42:07 UTC

Created attachment 99183 [details]
Screenshot of screen config dialog

Comment 2 Valdas 2016-05-25 15:42:57 UTC

Created attachment 99184 [details]
Resizing: mouse hits invisible wall

Comment 3 Valdas 2016-05-25 15:44:05 UTC

Created attachment 99186 [details]
Moving: mouse hits invisible wall.

Comment 4 Valdas 2016-05-25 15:44:54 UTC

Created attachment 99187 [details]
Moving wider window: mouse hits invisible wall.

Comment 5 Valdas 2016-05-30 05:03:51 UTC

I think bug #358363 is related to this bug because when taskbar resets its position then during whole session I experience no invisible barrier when mowing or resizing window.

Comment 6 Valdas 2016-07-10 09:39:46 UTC

I found another oddity:
- I enabled "Taskbar edit" and adjusted height of Taskabar (by using sliders);
- I placed Kate's window below Taskbar (screesnshot "kate_window__before.jpeg");
- I increased height of Taskbar by dragging slider down.
When bottom border of Taskabar collides with top border of Kate's window then Kate's window "notices in previous posts mentioned invisible barrier" and jumps to left and resizes itself (screenshot "kate_window__after.jpeg").

Comment 7 Valdas 2016-07-10 09:41:34 UTC

Created attachment 99982 [details]
Adjusting height of Taskabar: before

Comment 8 Valdas 2016-07-10 09:42:04 UTC

Created attachment 99983 [details]
Adjusting height of Taskabar: after

Comment 9 Valdas 2016-08-16 09:24:26 UTC

I think there NVIDIA is involved: when I switch (using NVIDIA X server settings) GPU to Intel then this issue gone.

Comment 10 Justin Zobel 2020-11-09 05:10:41 UTC

Thanks for the report Valdas.

I'm unable to reproduce this issue on the latest Plasma from git master.

Can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved, thanks.

Comment 11 Valdas 2020-11-09 07:15:59 UTC

 I am currently using a different dual screen setup and cannot reproduce the bug.