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
Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please check if this is still an issue with Plasma 5.25 or 5.26? If it is, please change the status to CONFIRMED when replying. If not, or if you can't because you no longer use this setup, you can change the status to RESOLVED WORKSFORME. Thanks a lot!
This is a very old bug, and has not been an issues for months Fixed !
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!