I have three monitors, their resolutions are: 1. 1920x1080 2. 1920x1200 3. 1920x1080 I want to use "kcmshell5 kscreen" to arrange the monitors so that the lower edge of each monitor is aligned. The resulting positions (as reported by xrandr) would therefore be: 1. 1920x1080+0+120 2. 1920x1200+1920+0 3. 1920x1080+3840+120 I can't achieve this using the KDE screen configuration GUI as the top of each screen is used for snapping. This usually makes aligned easy. However when I drag the middle screen close to the intended position, it gets snapped to the wrong position. It seems like the top of each monitor produces a snap line, but the bottom does not. I has to use the xrandr command to get the arrangement I desired: $ xrandr --output DP-2 --pos 1920x-120 Reproducible: Always
I'm also affected by this bug. And thanks for the xrandr command workaround.
Created attachment 100639 [details] json configuration file reproducing this bug can be run from libkscreen's build directory, using the kwaylandtestserver.
Thanks for the bug report! I've reproduced the problem by creating a wayland server with a configuration similar to what you describe to test the systemsettings' module's ui. It seems that there's a bug in the snapping code. I'll see if I can come up with a fix for this. For reference, I've attached the broken config as json file to this bug report.
Git commit 8448070a7dc55b6719d845c4333fe9c5a35991e0 by Sebastian Kügler. Committed on 16/08/2016 at 22:40. Pushed by sebas into branch 'master'. [kcm] decrease snapping area Displays with only a small difference in size need a smaller amount of snapping, so the user can still choose wether to top or bottom align. This especially makes aligning monitors with 1920x1080 and 1920x1200 work. M +1 -1 kcm/src/declarative/qmloutput.cpp http://commits.kde.org/kscreen/8448070a7dc55b6719d845c4333fe9c5a35991e0
Git commit bdaa4258090782982364ac70ac83c4035272891a by Sebastian Kügler. Committed on 16/08/2016 at 22:48. Pushed by sebas into branch 'Plasma/5.7'. [kcm] decrease snapping area Displays with only a small difference in size need a smaller amount of snapping, so the user can still choose wether to top or bottom align. This especially makes aligning monitors with 1920x1080 and 1920x1200 work. M +1 -1 kcm/src/declarative/qmloutput.cpp http://commits.kde.org/kscreen/bdaa4258090782982364ac70ac83c4035272891a