liferea crashes on Wayland

[bruce-awareit]

bash> liferea --debug-gui

Gdk-Message: 22:41:41.607: Error 71 (Protocol error) dispatching to Wayland display.

[lwindolf]

I cannot reproduce this. Running for a long time on Wayland. Which Liferea version and Linux distro are you using?

Can you please rerun with

WAYLAND_DEBUG=1 liferea

this might give more info on why Wayland refuses starting.

[lwindolf]

https://discussion.fedoraproject.org/t/gdk-message-error-71-protocol-error-dispatching-to-wayland-display/127927/5 hints on this being an NVidia driver issue. This can be tested by launching with

GSK_RENDERER=gl liferea

[bruce-awareit]

$ uname -r
6.10.6-arch1-1

$ LANG=C GSK_RENDERER=gl liferea
Gdk-Message: 21:10:24.089: Error 71 (Protocol error) dispatching to Wayland display.

$ LANG=C WAYLAND_DEBUG=1 liferea
.......
.......[1210922.613] {Default Queue} wl_surface#25.enter(wl_output#6)
[1210922.655] {Default Queue} -> wl_shm#5.create_pool(new id wl_shm_pool#49, fd 63, 9216)
[1210922.852] {Default Queue} -> wl_shm_pool#49.resize(27648)
[1210923.025] {Default Queue} -> wl_shm_pool#49.resize(64512)
[1210923.343] {Default Queue} -> wl_shm_pool#49.resize(138240)
[1210923.938] {Default Queue} -> wl_shm_pool#49.resize(285696)
[1210925.069] {Default Queue} -> wl_shm_pool#49.resize(580608)
[1210929.039] {Default Queue} -> wl_shm_pool#49.resize(1170432)
[1210934.193] {Default Queue} -> wl_shm_pool#49.resize(2350080)
[1210952.445] {Default Queue} -> wl_shm_pool#49.create_buffer(new id wl_buffer#50, 1594368, 48, 48, 192, 0)
[1210952.458] {Default Queue} -> wl_pointer#10.set_cursor(449, wl_surface#25, 3, 0)
[1210952.464] {Default Queue} -> wl_surface#25.attach(wl_buffer#50, 0, 0)
[1210952.469] {Default Queue} -> wl_surface#25.set_buffer_scale(2)
[1210952.472] {Default Queue} -> wl_surface#25.damage(0, 0, 24, 24)
[1210952.478] {Default Queue} -> wl_surface#25.commit()
[1210958.728] {Display Queue} wl_display#1.delete_id(47)
[1210958.738] {Display Queue} wl_display#1.error(wp_linux_drm_syncobj_surface_v1#30, 2, "Explicit Sync only supported on dmabuf buffers")
Gdk-Message: 21:08:05.789: Error 71 (Protocol error) dispatching to Wayland display.

[lwindolf]

@bruce-awareit Thanks for the trace and test with GSK_RENDERER. This is definitively a Wayland issue. A Google search turns up multiple other apps that are affected too. The Liferea code has no such low level stuff anyway, we just use GDK/GTK.

To workaround you could start Liferea with X11 backend like this

GDK_BACKEND=X11 liferea

I consider this bug report as wont-fix, but will leave it open for some time, so other affected users can easily find it.

[hanikesn]

__NV_DISABLE_EXPLICIT_SYNC=1 fixed the issue for me as well without falling back to X11

[bruce-awareit]

__NV_DISABLE_EXPLICIT_SYNC=1

@hanikesn Thanks. It works for me, too.

[bruce-awareit]

WEBKIT_DISABLE_DMABUF_RENDERER=1 fixed the issue for me as well in Wayland on Archlinux.