[kde] [Bug 447856] New: KDE Plasma Monitor BUG - Turning main Display (SONY 32 Inch TV) OFF and then Back ON Results in Apparent Disconnection of HDMI Cable OR HDMI output signal turned OFF

Ben bugzilla_noreply at kde.org
Sun Jan 2 20:20:51 GMT 2022 

https://bugs.kde.org/show_bug.cgi?id=447856

            Bug ID: 447856
           Summary: KDE Plasma Monitor BUG - Turning main Display (SONY 32
                    Inch TV) OFF and then Back ON Results in Apparent
                    Disconnection of HDMI Cable OR HDMI output signal
                    turned OFF
           Product: kde
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: Enlightenment1 at cock.li
  Target Milestone: ---

SUMMARY:

KDE Plasma Monitor BUG - Turning main Display (SONY 32 Inch TV) OFF and then
Back ON Results in Apparent Disconnection of HDMI Cable OR HDMI output signal
turned OFF



REPRODUCE ISSUE:

1. Turn SONY 32" monitor off via On/Off button on side of TV Set/Monitor or by
TV remote control and then turn Monitor/TV Set back on again



OBSERVED RESULT:

SONY 32" Monitor gives a black screen - Description above



EXPECTED RESULT:

Should just display screen with no changes


KDE INFO:

Operating System: openSUSE Tumbleweed 20211228
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.2
Kernel Version: 5.15.8-1-default (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz
Memory: 15.5 GiB of RAM
Graphics Processor: AMD PITCAIRN


KDE Plasma Monitor BUG - Turning main Display (SONY 32 Inch TV) OFF and then
Back ON Results in Apparent Disconnection of HDMI Cable OR HDMI output signal
turned OFF:




PC MotherBoard Hardware:

Intel Desktop PC (ASUS P8Z77-M)
https://www.asus.com/us/Motherboards/P8Z77M/HelpDesk_BIOS/

UEFI BIOS
Version 2203 2016/02/194.26 MBytes
P8Z77-M BIOS 2203



Monitors & their Connections:

Sony TV - Bravia KDL-40CX520 - 40" WideScreen
Sony TV - Bravia KDL-32CX520 - 32" WideScreen


1. SONY 32" TV  - HDMI cable to AMD/ATI Radeon video card - Main PC Desktop
monitor (has Taskbar & Icons on it's desktop) - Res: 1920 x 1080
2. HP VA905 19" - DVI cable to AMD/ATI Radeon video card - Res: 1280 x 1024
3. SONY 40" TV  - HDMI cable to Motherboard Integrated Intel HD4000 GPU
Motherboard Chip (i915 driver) - Res: 1920 x 1080

AMD/ATI = Radeon HD 7850 (7000 Series) PCI-E Video Card

KDE Plasma Display Set up is as above from left to right hand side



NAME: KDE Plasma Monitor BUG - Turning main Display (SONY 32 Inch TV) OFF and
then Back ON Results in Apparent Disconnection of HDMI Cable OR HDMI output
signal turned OFF

DESC: Turning Off main desktop monitor (SONY 32" TV) and back on again results
in main monitor becoming black and the TV shows it's own WORD/TEXT Display for
the Currently Selected Input (HDMI X), where X is the HDMI port number
      The SONY Bravia TV Sets always end up showing the Currently Chosen Input
Method on the screen whenever a video/picture signal is expected but none is
currently presenting itself to the TV Sets currently chosen input method


Linux Distro: OpenSUSE Tumbleweed



SDDM Bootup Options - Bug Appears In:

KDE Plasma (Wayland): YES
KDE Plasma X11: NO

TESTED ON DATE: Sunday the 2nd of January, 2022




CONDITIONS:

Both monitors 1 & 2 are ON
Settings > Energy Saving
 - Screen Energy Saving: OFF




REPRODUCE ISSUE:

1. Turn SONY 32" monitor off via On/Off button on side of TV Set/Monitor or by
TV remote control and then turn Monitor/TV Set back on again



RESULT:

SONY 32" Monitor gives a black screen - Description above



FURTHER INFO:

It is usually possible to logout (either by pressing the PC's power button or
logging out via an Application Menu on another monitor) and then log 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 all
monitors having a black screen and no ability to logout and sometimes one
cannot use any monitor to run apps
and a manual PC button re-boot is nessessary.


NOTES:

I have had no problems using the Motherboards Internal VGA Output connected to
my 32" TV/Monitor - All Monitors & Displays are 100% completely stable whenever
turning any of the Monitors/TV's off and back on again using VGA.


Issue has persisted on at least 3 previous kernel releases as well

DATE BUG REPRODUCED: Friday the 16th of April, 2021 and Sunday the 2nd of
January, 2022




KDE SYSTEM INFO - AS OF DATE Sunday the 3nd of January, 2022:

Operating System: openSUSE Tumbleweed 20211228
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.2
Kernel Version: 5.15.8-1-default (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz
Memory: 15.5 GiB of RAM
Graphics Processor: AMD PITCAIRN



ORIGINAL BUG REPORT I SUBMITTED:

"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"

KDE BUG SUBMITTED ON DATE: Saturday the 17th of April, 2021
TIME: 1.12 PM

https://bugs.kde.org/show_bug.cgi?id=435834

NOTE: There is a URL option for big screens (was not submitted to)

https://bugs.kde.org/enter_bug.cgi?product=plasma-bigscreen




RELATED BUGS - KDE Plasma - Multi-Monitor Display Bugs:

Bug 442980 - Plasma wayland session does not re-detect external monitor
https://bugs.kde.org/show_bug.cgi?id=442980

Bug 434604 - Multiple monitor configuration gets broken
https://bugs.kde.org/show_bug.cgi?id=434604

Bug 438839 - Wayland - turning monitor off and back on causes plasmashell to
make invalid xdgshell request and crash
https://bugs.kde.org/show_bug.cgi?id=438839

Bug 431856 - kscreen frequently mess resolution on a dual monitor setup
https://bugs.kde.org/show_bug.cgi?id=431856

Bug 446282 - Plugging in external monitor that is powered off crashes all apps
https://bugs.kde.org/show_bug.cgi?id=446282

Bug 406429 - after monitors power off/on screens messed up
https://bugs.kde.org/show_bug.cgi?id=406429

Bug 353637 - Cannot enable second monitor in Display Configuration
https://bugs.kde.org/show_bug.cgi?id=353637

Bug 446078 - Attaching/detaching external monitors with Wayland crashes
apps/hides Plasma panel
https://bugs.kde.org/show_bug.cgi?id=446078

Bug 436648 - Switching monitor input from one connector type to another loses
containment mapping/screen setup
https://bugs.kde.org/show_bug.cgi?id=436648

Bug 397136 - wayland: after energy saving turns monitors off and i try to wake
them on with a mouse, one monitor is unusable
https://bugs.kde.org/show_bug.cgi?id=397136

Bug 406429 - after monitors power off/on screens messed up
https://bugs.kde.org/show_bug.cgi?id=406429

Bug 353722 - background lost multi-monitor setup
https://bugs.kde.org/show_bug.cgi?id=353722

--------------------------------------------------------------------------------------------------------------------------------------------------------------

Bug 406429 - after monitors power off/on screens messed up
https://bugs.kde.org/show_bug.cgi?id=406429

Bug 353722 - background lost multi-monitor setup
https://bugs.kde.org/show_bug.cgi?id=353722

Bug 418899 - Everything is unusable after monitor turn on
https://bugs.kde.org/show_bug.cgi?id=418899

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 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 424694 - kwin_wayland crashes when enabling monitor
https://bugs.kde.org/show_bug.cgi?id=424694

Bug 434604 - Multiple monitor configuration gets broken
https://bugs.kde.org/show_bug.cgi?id=434604

Bug 350954 - Display settings drops with multiple monitor configurations. It
causes hangs.
https://bugs.kde.org/show_bug.cgi?id=350954

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

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