[Bug 92296] Xorg crashes with reverse PRIME (intel+nouveau) and OpenGL/VA-API

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92296

--- Comment #9 from Chris Wilson <chris at chris-wilson.co.uk> ---
If I am right, the gist of the issue is:

diff --git a/present/present.c b/present/present.c
index beb01dc..de37abc 100644
--- a/present/present.c
+++ b/present/present.c
@@ -724,7 +724,7 @@ present_pixmap(WindowPtr window,

     if (!screen_priv || !screen_priv->info)
         target_crtc = NULL;
-    else if (!target_crtc) {
+    else if (!target_crtc || target_crtc->pScreen != screen) {
         /* Update the CRTC if we have a pixmap or we don't have a CRTC
          */
         if (!pixmap)

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