[Bug 79843] i855gm: Display corruption in presence of graphics memory pressure

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79843

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
Here's something else to test wrt scrolling:

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index ac3867e..fc3f889 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -5448,6 +5448,7 @@ sna_self_copy_boxes(DrawablePtr src, DrawablePtr dst,
GCPtr gc,
                goto fallback;
        }

+       sna_pixmap_move_to_gpu(pixmap, MOVE_READ | MOVE_WRITE |
MOVE_ASYNC_HINT);
        if (priv->gpu_damage || (priv->cpu_damage == NULL && priv->gpu_bo)) {
                assert(priv->gpu_bo);

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