[Bug 67015] Page rendering corruption in Firefox [SNA]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67015

--- Comment #13 from Chris Wilson <chris at chris-wilson.co.uk> ---
Clemens can you try this little hack to see if it helps your system:

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 77233cd..c84ca92 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -62,7 +62,7 @@

 #define DEFAULT_TILING I915_TILING_X

-#define USE_INPLACE 1
+#define USE_INPLACE 0
 #define USE_WIDE_SPANS 0 /* -1 force CPU, 1 force GPU */
 #define USE_ZERO_SPANS 1 /* -1 force CPU, 1 force GPU */
 #define USE_CPU_BO 1


So far I can only reproduce this on SNB. And am quite baffled. Everytime I
think I have a lead, it unravels.

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