https://bugs.kde.org/show_bug.cgi?id=435834
Bug ID: 435834
Summary: Wayland - Multi-monitor - Turning Off main desktop
monitor and back on again results in main monitor
losing the bottom half of the screen (THE TASKBAR) &
other Anomilies
Product: plasmashell
Version: 5.21.4
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: Multi-screen support
Assignee: aleix...@kde.org
Reporter: enlightenme...@cock.li
CC: plasma-b...@kde.org
Target Milestone: 1.0
Flags: Wayland+, X11-
SUMMARY:
KDE Plasma Monitor Hell BUG - Turning Off main desktop monitor and back on
again results in main monitor losing the bottom half of the screen (THE
TASKBAR) & other Anomilies:
Monitors & their Connections:
1. SONY 32" - HDMI cable to AMD/ATI Radeon video card - Main PC Desktop
monitor (has Taskbar & Icons on it's desktop)
2. HP VA905 19" - DVI cable to AMD/ATI Radeon video card
3. SONY 40" - HDMI cable to Motherboard Intel HD4000 GPU Motherboard Chip
(i915 driver)
AMD/ATI = Radeon HD 7850 (7000 Series) PCI-E Video Card
KDE Display Set up is as above from left to right hand side
NAME: KDE Plasma Monitor Hell BUG - Turning Off main desktop monitor and back
on again results in main monitor losing the bottom half of the screen (THE
TASKBAR) & other Anomilies
DESC: Turning Off main desktop monitor and back on again results in main
monitor becoming black and providing no useable interface, ex: the bottom half
of the screen (THE TASKBAR) & other Anomilies
DE's Bug Appears In:
Xwayland (Wayland) : YES
Full Wayland: YES
x11: NO
CONDITIONS:
Both monitors 1 & 2 are on
REPRODUCE ISSUE:
1. Turn SONY 32" monitor off via On/Off button on TV Set/Monitor or TV remote
control
2. Turn SONY 32" monitor back on via On/Off button on TV Set/Monitor or TV
remote control
RESULT:
KDE connect Daemon - The KDE Crash Handler window appears on the SONY 32"
Monitor*
The taskbar often still appears on the SONY 32" Monitor but is not responsive
*Intermittant, sometimes happens
SONY 32" Monitor gives a black screen, with _maybe_ (intermittant) only 1
window being displayed (often the last used or in-focus window)
HP VA905 19" Monitor suddenly appears to become a/the main/primary monitor (the
taskbar with all pinned icons in it that was originally on the SONY 32"
Monitor)
suddenly appear on this monitor.
The SONY 32" monitor will also successfully display the mouse pointer, however
when moving/draging any windows from the HP VA905 19" Monitor to the SONY 32"
monitor
the mouse pointer on the SONY 32" monitor turns into a 4 direction arrow, and
the window being dragged onto the SONY 32" monitor does not get displayed at
all.
About a fifth of the SONY 32" monitor (on the right-hand side of it) ends up
displaying a part of the wall paper that was displayed on the HP VA905 monitor.
Also the taskbar on the SONY 32" monitor appears to be literally "raised up" by
about 2 centimetres with nothing but black underneath it.
FURTHER INFO:
It is usually possible to logout and then back in again to restore operations
to the way they were before the issue started
However, upon repeating the above monitor off/on issue often results in the
non-ability to logout and sometimes one cannot use any monitor to run apps
and a manual PC button re-boot is nessessariy
Issue has persisted on at least 3 previous kernel releases as well
DATE BUG REPRODUCED: Friday the 16th of April, 2021
RELATED BUGS - KDE Plasma - Multi-Monitor Display Bugs:
Bug 406429 - after monitors power off/on screens messed up
https://bugs.kde.org/show_bug.cgi?id=406429
Bug 430488 - panels are not fixed to monitors causing them to move when turning
monitors off
https://bugs.kde.org/show_bug.cgi?id=430488
Bug 353722 - background lost multi-monitor setup
https://bugs.kde.org/show_bug.cgi?id=353722
Bug 368935 - panel inconsistencies while unplugging/plugging monitors
https://bugs.kde.org/show_bug.cgi?id=368935
Bug 370952 - Connecting secondary Display freezes the primary display
https://bugs.kde.org/show_bug.cgi?id=370952
Bug 418899 - Everything is unusable after monitor turn on
https://bugs.kde.org/show_bug.cgi?id=418899
Bug 370180 - Widgets moved to secondary monitor upon reconnect
https://bugs.kde.org/show_bug.cgi?id=370180
Bug 426273 - Screen distorsions and ghosting in multi-monitor setup on
Plasma-Wayland
https://bugs.kde.org/show_bug.cgi?id=426273
Bug 431417 - Plasma crash when dual screens turned off
https://bugs.kde.org/show_bug.cgi?id=431417
Bug 419724 - kwin_wayland crashed when external monitor was turned on
https://bugs.kde.org/show_bug.cgi?id=419724
Bug 417807 - kwin crash after external monitor turned off and on again
https://bugs.kde.org/show_bug.cgi?id=417807
Bug 416401 - KWin crashes after turning on monitor and unlocking KDE Plasma
https://bugs.kde.org/show_bug.cgi?id=416401
Bug 413771 - Menu does not show in right place with multiple monitors
https://bugs.kde.org/show_bug.cgi?id=413771
Bug 414872 - Crash when unplugging second monitor under Wayland
https://bugs.kde.org/show_bug.cgi?id=414872
Bug 403519 - Wayland session crashed immediately after I connect an external
monitor to hdmi port
https://bugs.kde.org/show_bug.cgi?id=403519
Bug 412178 - crash after reconnecting external monitor
https://bugs.kde.org/show_bug.cgi?id=412178
Bug 429236 - Screen layout is scrambled after switching between X11 and Wayland
Plasma session
https://bugs.kde.org/show_bug.cgi?id=429236
Bug 374908 - Dual monitors: when screen resumes, windows are rearranged on
second monitor
https://bugs.kde.org/show_bug.cgi?id=374908
Bug 424694 - kwin_wayland crashes when enabling monitor
https://bugs.kde.org/show_bug.cgi?id=424694
Bug 389918 - When plugging/unplugging monitor the "Visibility" of the panel is
not respected.
https://bugs.kde.org/show_bug.cgi?id=389918
Bug 434604 - Multiple monitor configuration gets broken
https://bugs.kde.org/show_bug.cgi?id=434604
Bug 345532 - Severe graphical corruption after configuring multiple displays
https://bugs.kde.org/show_bug.cgi?id=345532
Bug 346181 - K menu, context menus, system tray popups not displayed (or
displayed off-screen) after an external monitor is plugged in
https://bugs.kde.org/show_bug.cgi?id=346181
Bug 350954 - Display settings drops with multiple monitor configurations. It
causes hangs.
https://bugs.kde.org/show_bug.cgi?id=350954
Bug 356225 - Panel moves to wrong screen when external monitor is connected
https://bugs.kde.org/show_bug.cgi?id=356225
Bug 419728 - kwin_wayland crashes when external monitor is disconnected from
hdmi port while multi-monitor mode is set to "Switch to external screen"
https://bugs.kde.org/show_bug.cgi?id=419728
Bug 428706 - Cannot unlock session after external screen switches off in
Wayland
https://bugs.kde.org/show_bug.cgi?id=428706
Bug 356727 - Plasma Panel sometimes disappears with multiple monitors
https://bugs.kde.org/show_bug.cgi?id=356727
Bug 414803 - Losing/corrupted multi-monitor configuration with TB 3.0 dock
https://bugs.kde.org/show_bug.cgi?id=414803
PROPOSAL SUBMITTAL:
KDE SYSTEM INFO:
Operating System: openSUSE Tumbleweed 20210414
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.81.0
Qt Version: 5.15.2
Kernel Version: 5.11.12-1-default
OS Type: 64-bit
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz
Memory: 15.5 GiB of RAM
Graphics Processor: AMD PITCAIRN
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