https://bugs.kde.org/show_bug.cgi?id=377297
Bug ID: 377297
Summary: Panel and windows move to wrong screen when displays
are added and removed
Product: plasmashell
Version: 5.9.1
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: Multi-screen support
Assignee: aleix...@kde.org
Reporter: mich...@butash.net
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 104413
--> https://bugs.kde.org/attachment.cgi?id=104413&action=edit
Multi monitor panels shift randomly with disconnect and reconnect of displays
I've long posted to bug thread #356225, but after having 5.7.2 fix my prior
AMD-based system, I've found after upgrading that Nvidia systems still suffer
the same multi-screen problems.
KDE display settings in plasma have 3 displays typically, HDMI connected TV's
essentially, and has constant issues figuring out which display to keep windows
and panels to. Changing the "primary" display causes the main task bar and
menu to jump to anything but that actual display.
This occurs when I power off my displays, as being TV's they do not support
DMPS or any other power saving. When powered off, the card shows them
disconnected, and jumbles my screens and content. Earlier days of plasma5, it
would crash it, now it just annoyingly throws everything about, including my
task bars and things like Cairo Dock I use.
This is Arch linux, just upgraded to 5.9.1 saturday, and using Nvidia binary
drivers. Xrandr shows things just fine as I want them, only plasma isn't
honoring, or reporting to other windowed apps, the proper sequence of which
display is which.
I'm including a link to a spectacle screen cap showing the display id's, plasma
settings, and xrandr -q output in a single shot (it's a 40mb png). Everything
shows normally other than the windows and panels just don't go where they're
supposed to.
It is highly problematic when it moves everything, including my workspace
windows when I turn off, and remove the 3x displays overnight, which seems to
just make this worse.
Steps to reproduce:
1) Install nvidia video card (1070gtx) and 3x 4k hdmi 2.0 displays (samsung 48"
lcd tv's)
2) Install arch and nvidia drivers with kde plasma5, currently 5.9.1
2) Use Plasma system settings to arrange the displays in order
4) Set primary display in settings to be middle display (dp-2 on mine)
5) Save settings, open various applications around the screens, and power off
each tv in any order
6) Power them back on in any order
7) Log back into system and witness the task bar move to a different monitor,
and all other open window are jumbled usually to one
No xorg.conf files exist, I've not used the nvidia-settings setup, only kde's
display manager. I have attempted to clear out kwin files and various other
plasma config files several times, no avail. This is something more deeply
rooted than prior fixes for this.
Screen shot:
https://drive.google.com/file/d/0B91hGMu34xP7QzBvY3Y2M0RySXM/view?usp=sharing
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