Cursor vanishes in some regions on Wayland

[cole-miller]

Check for existing issues

• Completed

Describe the bug / provide steps to reproduce it

On my Wayland desktop (with sway as the compositor), the cursor disappears when it passes over some regions in the Zed window:

• the thin boundaries between panes, e.g. when dragging to resize
• the title bar icons for audio and video sharing, when they are marked as inactive/unavailable (when running Use livekit's Rust SDK instead of their swift SDK, take 2 #20826 those buttons are available and the cursor interacts with them in the expected way)

Unfortunately renderdoc doesn't support Wayland but see the screencast [edit: the issue can't be seen in the screencast unfortunately, the video seems to lose a bunch of frames on upload such that you can't see the cursor behavior]

recording.mp4

Environment

Zed: v0.165.0 (Zed Nightly a8c7e61)
OS: Linux Wayland ubuntu 24.04
Memory: 15.4 GiB
Architecture: x86_64
GPU: Intel(R) Xe Graphics (TGL GT2) || Intel open-source Mesa driver || Mesa 24.0.5-1ubuntu1

If applicable, add mockups / screenshots to help explain present your vision of the feature

No response

If applicable, attach your Zed.log file to this issue.

No response

[cole-miller]

This is a server-side/configuration issue, my sway.log has a bunch of lines like

178140:08:31:47.985 [DEBUG] [wlr] [types/wlr_cursor.c:573] XCursor theme is missing 'col-resize' cursor
181075:08:43:55.655 [DEBUG] [wlr] [types/wlr_cursor.c:573] XCursor theme is missing 'not-allowed' cursor

I don't see a way for Zed to detect this condition and fall back so closing.