GLX: Say something if we cannot connect via DRI2

See https://bugs.freedesktop.org/show_bug.cgi?id=40437

diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 9fa0d5ad3628674ab712ab6d5bffd67722e54e03..b83da60fe77c687a8b1b5fb430b4a3de881f8f31 100644 (file)
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -835,6 +835,7 @@ dri2CreateScreen(int screen, struct glx_display * priv)
                    &driverName, &deviceName)) {
       glx_screen_cleanup(&psc->base);
       XFree(psc);
+      InfoMessageF("screen %d does not appear to be DRI2 capable\n", screen);
       return NULL;
    }