[writing a compositor] wl_display_add_socket_auto fails

Sung-Jin Park input.hacker at gmail.com
Fri May 11 04:42:17 UTC 2018

As I know, if it failed to lock lock file in wl_socket_lock(), it returns a
negative value and wl_display_add_socket_auto() will continue to try to add
socket with increased display number. In your case, it will try to create
socket with wayland-1.

Please check your compositor running with wayland-1.


2018년 5월 11일 (금) 오후 1:28, adlo <adloconwy at gmail.com>님이 작성:

> I am attempting to write a test compositor using libweston. I want to
> run it in a window on GNOME Shell, so I am using the Wayland backend.
> When I call wl_display_add_socket_auto, it fails with the error
> message: unable to lock lockfile /run/user/1000/wayland-0.lock, maybe
> another compositor is running
> How can I resolve this?
> Regards
> adlo
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> wayland-devel at lists.freedesktop.org
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