[Bug 65099] [GM45] Video corruption on wide desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65099

--- Comment #18 from Chris Wilson <chris at chris-wilson.co.uk> ---
Looks like a pending flip comes in after changing the fb size, yet another
variant of the same race as in the kernel.

Can you please try:

diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index 2d59831..9b324e2 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -2686,6 +2686,7 @@ sna_mode_resize(ScrnInfoPtr scrn, int width, int height)
                visit.new = sna->front;
                TraverseTree(root(screen), sna_visit_set_window_pixmap,
&visit);
                assert(screen->GetWindowPixmap(root(screen)) == sna->front);
+               sna_dri_destroy_window(root(screen));
        }
        screen->SetScreenPixmap(sna->front);
        assert(screen->GetScreenPixmap(screen) == sna->front);

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