Description of problem: I have three displays connected to a Radeon RX480. One is 3840x2160 (landscape), the other two are 1200x1920 (portrait left and right, respectively). The 4k display is indexed as the third one in the Displays panel of the Settings app, and arranged as the rightmost of the three displays. After upgrading to Fedora 27, when the mouse pointer is near the left edge of the 4k display, it also appears on the adjacent 2k display. The extra pointer is displayed as if the display was in landscape mode, so it appears rotated relative to the display contents. It seems to be just a display bug; click events go correctly to items on the 4k display. Version-Release number of selected component (if applicable): wayland-1.14.0-1.fc27 gnome-shell-3.26.2-1.fc27 How reproducible: Always. Steps to Reproduce: I haven't tried to reproduce from a fresh config. Hopefully it's reproducible with a similar config.
Created attachment 1352198 [details] video demonstrating the issue
If I unplug one of the 2k monitors I can still reproduce if the remaining 2k monitor is in 'portrait left' but not 'landscape'. So the issue should be reproducible with two screens. Any hints on how to debug this?
It also happens to me, I have two monitors and one is on 'Portrait right'. Any hint on how to debug or provide more information?
Also happening here. Incidentally my third screen on the left is in portrait as well. Using the intel i915 driver and wayland
Same here with 3 screens on Wayland. The second pointer appears on the monitor on the left which is set as portrait. All of the 3 screens are set to 1920x1080.
same problem here, 2 screens, left one set to "Portrait right", right one "landscape".
I currently have this problem after a system upgrade from 26 to 27. I have a triple monitor setup, with the leftmost monitor set to "portrait right" (like most people commenting) My current work around is to align the bottom of my left monitor (in portrait right) to the bottom of my center monitor (in landscape) If I align the top, so that there are more pixels below my center monitor the "ghost" cursor appears. After some testing, I found that this only happens in "portrait right" and "portrait left" on the left-most monitor. Adjusting the position and orientation on my right monitor doesn't have an affect.
Thanks, Evan, for the new data. Hopefully that will help narrow down the issue.
As a temporary workaround, selecting "GNOME on Xorg" at login does work with F27 and the same gnome-shell version.
since the last dnf update i'm back to one cursor, this is works-for-me.
I just did a dnf update and i still see the duplicate cursor when moving on the top left part of my screen.
Same here under Wayland with 3 monitors: left horizontal, middle vertical (physically rotated right, image rotated left), right horizontal. Attaching image that shows screen configuration: primary screen #3, which is the most left one (ordered 312 from left to right).
Created attachment 1410471 [details] Screen configuration with 3 monitors 3-horiz 1-vert 2-horiz Screen configuration with 3 monitors: left most, #3 horizontal; middle, #1 vertical; right most, #2 horizontal.
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