[Wayland-bugs] [Bug 74752] Weston-desktop-shell hangs.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74752

--- Comment #8 from Pekka Paalanen <ppaalanen at gmail.com> ---
(In reply to comment #7)
> I forgot to mention, I am compiling Weston with --with-cairo=gl

Ookay, that's pretty rare I think. Do wayland clients use egl_dri2 or
egl_gallium in your system?

Fbdev backend does not initialize server-side EGL, so it does not advertise
wl_drm. DRM and x11 backends do. This means that on client side,
weston-desktop-shell on fbdev-compositor will either complain and fall back to
wl_shm, or it will use egl_gallium with a software renderer, depending on your
Mesa build. On the other compositors, weston-desktop-shell will attempt to use
wl_drm if advertized, which means you hit either egl_dri2 or egl_gallium, again
depending on your Mesa build.

What is your gfx card flavour, intel, nouveau or radeon?

I believe the untested and mostly unmaintained combination is egl_gallium with
nouveau and radeon drivers (with wl_drm), so problems are not unexpected. Do
you hit this case?

Unfortunately egl_gallium is atm the only way to use software rendered GL, and
Mesa prefers egl_gallium over egl_dri2. You could override that with EGL_DRIVER
env var.

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