https://bugs.kde.org/show_bug.cgi?id=405428
Bug ID: 405428
Summary: Secondary monitor positioned to right acts as a
primary monitor (windows positions are not remembered
either)
Product: kwin
Version: 5.14.3
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multihead
Assignee: kwin-bugs-n...@kde.org
Reporter: leftcr...@tutanota.com
Target Milestone: ---
Operating System: Kubuntu 18.10
KDE Plasma Version: 5.15.2
KDE Frameworks Version: 5.54.0
Qt Version: 5.11.1
Kernel Version: 4.18.0-16-generic
OS Type: 64-bit
Display server: X11
This occurs when you have two monitors connected to a laptop (screen inactive)
and the right-hand one is primary. Once you disconnect the monitors and
reconnect, windows start to appear on the left-hand monitor (even if the mouse
is on the primary monitor). This goes for both windows that were already open,
which get moved to the right-hand monitor and for some new windows.
This includes, notably, the full-screen program launcher. Even though its icon
is located on the right screen, the launcher opens on the left after
disconnect/reconnect. The same is true for many other programs, with the
exception of the latest KDE and Gnome software. They get launched on the
secondary monitor.
Window positions aren't being remembered either - they always go to the
non-primary monitor on the left, for most programs. Interestingly, latte panels
from the left secondary monitor shift to the right upon disconnecting the
secondary monitor.
I can't tell if this is due to the latest KDE upgrade or due to me having
switched my secondary monitor from right to left side a week ago.
(I have active screen follows mouse enabled).
I realize that is is not an exhaustive or terribly clear summary of the bug,
but please be on the lookout for it. It's extremely annoying. I am not sure I
can document this much further. It's a complex bug and I have a solution that
works well enough for me: I just have a hotkey that restarts KWin, Latte, and
Plasma every time I disconnect/reconnect monitors.
Luckily KDE perfromance is good enough to permit this workaround.
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