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[Bug 1051306] New: kwin: horizontally maximizing window and unmaximizing it makes it grow by 8 pixels
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 28 Jul 2017 21:44:22 +0000
  • Message-id: <bug-1051306-21960@http.bugzilla.suse.com/>
http://bugzilla.suse.com/show_bug.cgi?id=1051306


Bug ID: 1051306
Summary: kwin: horizontally maximizing window and unmaximizing
it makes it grow by 8 pixels
Classification: openSUSE
Product: openSUSE Distribution
Version: Leap 42.3
Hardware: x86-64
OS: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: KDE Workspace (Plasma)
Assignee: opensuse-kde-bugs@xxxxxxxxxxxx
Reporter: mkubecek@xxxxxxxx
QA Contact: qa-bugs@xxxxxxx
Found By: ---
Blocker: ---

I started to encounter this problem after upgrade from 42.2 to 42.3. Steps
to reproduce:

1. Make one window maximized only in vertical direction (e.g. by middle click
on the "maximize" button) and check its geometry with xwininfo.

2. Maximize the window horizontally by right-clicking its "maximize" button.

3. Restore the geometry by right-clicking its "maximize" button again.

4. Check the geometry with xwininfo.

Result: the position of window's top left corner is preserved, its width is
larger by 8 pixels. This is especially annoying for windows aligned with
right edge of the screen because maximizing and unmaximizing the window makes
the window grow beyond screen edge.

Notes:

- horizontal position doesn't seem to matter; reproduced with windows aligned
to left screen edge, aligned to right edge or somewhere between
- the window must be maximized vertically; when it's not, its size is restored
correctly (including windows aligned with top or bottom screen edge)
- reproduced on two machines, one with a single 2560x1440 monitor, one with
two 1920x1080 monitors (combined into 3840x1080 workspace)
- 100% reproducible (on my machines with 42.3, that is)

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