Bug 379856

Summary: Screen edge approaches for Panels with window can cover even if not covered
Product: [Plasma] kwin Reporter: Freek <freek>
Component: coreAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED NOT A BUG    
Severity: minor CC: kde.org
Priority: VLO Flags: mgraesslin: corner_case+
Version First Reported In: git master   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screenshot with strange line at the bottom of the image

Description Freek 2017-05-15 15:47:52 UTC
Created attachment 105564 [details]
Screenshot with strange line at the bottom of the image

There is a strange wobbly dark edge on the bottom of the taskbar whenever I approach the taskbar with the mouse. When it is touched with the mouse it disappears again.

I use Arch Linux on an Asus BX401.
(I would be nice if I could somehow copy the "About System" page by the way.)
Comment 1 Marco Martin 2017-06-09 10:47:30 UTC
this is the panel unhide graphics.
it's the panel set as autohide?
Comment 2 Freek 2017-06-09 21:01:51 UTC
I have it set to "Windows can cover".

Indeed the shadow appears when I approach the bar and it is under a (full screen) window, this is probably to be expected, however I think the shadow is not very nice with these small wobbles. I'd like to turn it off altogether. Anyway, I guess that indeed the real bug is that this shadow also appears when there is no window covering the bar.

"Windows can cover" is the very best mode imo (I like the bar, I like full screen apps) and I always miss it on other OS-es.
Comment 3 Freek 2017-06-16 08:43:55 UTC
I strongly feel like me and my fellow taskbar hiders are a very small minority, also on windows. We regularly encounter bugs on all platforms and I hardly find anyone complaining about it. It would be nice if, in Plasma, we would find a home where we feel welcome and understood. I'm not saying we are deliberately discriminated against but people outside the tbh (taskbar hiders) community do enjoy a certain privilege that they seem to be unaware of, generally.
Comment 4 Martin Flöser 2017-07-02 16:20:14 UTC
I'm sorry, but this is quite a corner case and I fear this cannot be fixed without a larger refactoring. The component which is responsible for the screen edge only knows that a window requests the edge. It does not know the reason and thus cannot check whether it makes sense.

If you don't like the glow you can disable it globally in the desktop effects kcm. The effect is called something with screen edge.
Comment 5 Freek 2017-07-15 18:55:04 UTC
Ok, fair enough, thanx, I disabled "screen edge (highlights a screen edge when approaching". I like it much better this way.
Comment 6 kde.org 2021-11-06 19:49:04 UTC
User is happy with explanation and proposed solution