SUMMARY Three monitors are extremely unstable, here is their configuration Screen 0: minimum 320 x 200, current 4565 x 1080, maximum 8192 x 8192 DisplayPort-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm 1280x1024 60.02 + 75.02* 1152x864 75.00 1024x768 75.03 60.00 832x624 74.55 800x600 75.00 60.32 640x480 75.00 59.94 720x400 70.08 HDMI-0 connected 1920x1080+2645+0 (normal left inverted right x axis y axis) 708mm x 398mm 1920x1080 60.00 + 50.00 59.94 30.00 25.00 24.00 29.97 23.98* 1920x1080i 60.00 50.00 59.94 1360x768 59.80 1280x768 60.35 1280x720 60.00 50.00 59.94 1024x768 75.03 70.07 60.00 832x624 74.55 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DVI-0 connected 1366x768+1280+0 (normal left inverted right x axis y axis) 410mm x 230mm 1366x768 59.79*+ 1280x720 60.00 1024x768 75.03 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 640x480 75.00 72.81 66.67 59.94 720x400 70.08 STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Can you be more specific about what you mean when you say "extremely unstable?" What exactly happens under which circumstances? See https://community.kde.org/Get_Involved/Issue_Reporting#Step_6:_File_a_high-quality_Bugzilla_ticket
there is a configuration of three monitors Asus vs197 LG l1750sq LG lc45 Asus vs197 and LG lc45 worked stable LG l1750sq falls asleep by itself although I disabled power saving in kde neon , and if I make it active by switching to it, then everything works and the monitor does not fall asleep. My video card - ati hd5450 , driver - Free driver "radeon". I can't figure out who is buggy, power saving settings or the driver itself or something else. P.S. I looked at the capacitors in the monitor, they did not swell
kde neon 5.22.4 kde framework 5.84.0 qt version 5.15.3
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!
The problem remained unresolved
Are you sure your graphics card supports 3 monitors? Quick searching presented this: https://forums.tomshardware.com/threads/radeon-5450-with-3-monitors.1332858/
(In reply to valdikss from comment #6) > Вы уверены, что ваша видеокарта поддерживает 3 монитора? > Быстрый поиск представил это: > https://forums.tomshardware.com/threads/radeon-5450-with-3-monitors.1332858/ https://www.amd.com/en/support/graphics/amd-radeon-hd/ati-radeon-hd-5000-series/ati-radeon-hd-5450 Connectivity DisplayPort Yes Dual Link DVI Yes HDMI™ Yes VGA Yes
(In reply to cappelikan from comment #7) > Connectivity > DisplayPort Yes > Dual Link DVI Yes > HDMI™ Yes > VGA Yes It has 3 video outputs, but that doesn't mean you can use them all simultaneously. Read the link provided, another person have the same issue with your graphics card, and I believe that's on Windows. So most probably the issue is in your graphics card, not KDE. Try on another OS and/or another DE to make sure.
(In reply to valdikss from comment #8) > (In reply to cappelikan from comment #7) > > > Connectivity > > DisplayPort Yes > > Dual Link DVI Yes > > HDMI™ Yes > > VGA Yes > > It has 3 video outputs, but that doesn't mean you can use them all > simultaneously. Read the link provided, another person have the same issue > with your graphics card, and I believe that's on Windows. So most probably > the issue is in your graphics card, not KDE. > > Try on another OS and/or another DE to make sure. Everything works stably under Windows, but not in kde
(In reply to cappelikan from comment #9) > Everything works stably under Windows, but not in kde Have you checked 3 monitor setup in another Linux distro or at least another Desktop Environment? Are you sure this is KDE issue?
(In reply to valdikss from comment #10) > (В ответ на cappelikan из комментария №9 ) > > Все стабильно работает под виндой, но не в kde > > Вы проверили установку трех мониторов в другом дистрибутиве Linux или хотя > бы в другой среде рабочего стола? Вы уверены, что это проблема KDE? To my regret, I do not have the opportunity to check this problem, for anything else other than windows and kde neon
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now 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 Thank you for helping us make KDE software even better for everyone!