render/egl: don't fail on EGL_MESA_device_software
Mesa may advertise EGL_MESA_device_software even when hardware
drivers are in use [1]. Demote the error to a warning until the Mesa
bug is fixed.
[1]:
References:
@@ -279,10 +279,13 @@ struct wlr_egl *wlr_egl_create(EGLenum platform, void *remote_display) {
if (allow_software != NULL && strcmp(allow_software, "1") == 0) {
wlr_log(WLR_INFO, "Using software rendering");
} else {
- wlr_log(WLR_ERROR, "Software rendering detected, please use "
- "the WLR_RENDERER_ALLOW_SOFTWARE environment variable "
- "to proceed");
- goto error;
+ // Because of a Mesa bug, sometimes EGL_MESA_device_software is
+ // advertised for hardware renderers. See:
+ // https://gitlab.freedesktop.org/mesa/mesa/-/issues/4178
+ // TODO: fail without WLR_RENDERER_ALLOW_SOFTWARE
+ wlr_log(WLR_INFO, "Warning: software rendering may be in use");
+ wlr_log(WLR_INFO, "If you experience slow rendering, "
+ "please check the OpenGL drivers are correctly installed");
}
}
