Sway: High CPU usage on cursor movement (over Xwayland windows only?)

[albocc]

I noticed that when I keep moving my cursor over any window the CPU usage on my Core i7-4790K rises to around 35% (of a single core that is).

I observed this with Firefox, Thunderbird and also URxvt. However, this doesn't happen on an empty workspace where I am only moving my cursor over the wallpaper. This might indicate that it's only affecting windows rendered via Xwayland but I might be wrong.

I am running sway version 0.15.1 on Gentoo.

[iH8c0ff33]

I also get that and the cursor is really slow, as well as videos in firefox

PS: That doesn't happen with gnome on wayland

[jannispinter]

I'm facing the exact same issue.

[JakeHedman]

Same thing happens to me but also on empty workspaces. Also version 0.15.1 but on Arch.

[ddevault]

This will be fixed by the wlroots port.

[ddevault]

I'm closing issues that are resolved by the yet-unrelated sway 1.0.