I have a laptop with a small screen, and a large external monitor that I plug in and use when at home. At home I close the laptop screen. With this configuration, plasma opens all applications on the closed laptop screen, even though I dug through settings and selected "active screen follows mouse". Ubuntu handles this correctly in their unity environment, so it should be entirely possible to implement in plasma. It should be a simple rule: new applications should not open in inactive monitors. Even better, "active screen follows mouse" should be a) default and b) fixed so that it actually works reliably (which it is obviously not here.)
the setting works fine, but clients can demand specific positions (and that is honored by default, window rules allow you to override it) -> does it actually fail for *all* new windows? can you also please attach the output of "xrandr -q" for your problematic setup? defaults are handled as bug #355513 in general it's not possible (for kwin) to know that you closed the lid (but that usually fires a signal that kscreen could use to remove the output)
Actually, correction - system settings was reliably opening on the large monitor after I selected this setting, but other windows (e.g. Chrome, IIRC Dolphin) were not. Glad defaults is "confirmed", hope for that to be fixed. xrandr: $ xrandr -q Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 LVDS1 connected (normal left inverted right x axis y axis) 1366x768 60.03 + 1360x768 59.80 59.96 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 680x384 60.00 640x360 60.00 DP1 disconnected (normal left inverted right x axis y axis) HDMI1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 597mm x 336mm 1920x1080 60.00*+ 50.00 59.94 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 1680x1050 59.88 1400x1050 59.95 1280x1024 75.02 60.02 1440x900 59.90 1280x960 60.00 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.08 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 56.25 720x576 50.00 720x576i 50.00 720x480 60.00 59.94 720x480i 60.00 59.94 640x480 75.00 72.81 66.67 60.00 59.94 720x400 70.08 VGA1 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis)
The randr ouput says the LVDS1 isn't active and the workspace is only the 1920x1080 if the HDMI monitor. Unless we missed the config change, KWin won't position windows outside that workspace area and clients must try *really* hard to move there (ie. they must actually bypass the WM), chrome however restores its position ... (dolphin should not), so if the former position was outside 1920x1080, it might try to get there. Can you also please attach the output of "qdbus org.kde.KWin /KWin supportInformation" (to confirm we didn't simply "miss" the re-layout) and check a bit whether this may actually rather be a chrome issue?
Please provide the output of qdbus org.kde.KWin /KWin supportInformation when having the problem. Also xprop and xwininfo of a window opened on the inactive screen would be useful.
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 set the bug status 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!
Dear Bug Submitter, 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!