[Bug 52311] Flash 11.5 video hangs ivy bridge

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=52311





--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk>  2013-01-04 18:42:42 ---
What you can try instead is:

diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index c66bb47..40205f1 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -2774,6 +2774,11 @@ static bool sna_emit_wait_for_scanline_gen7(struct sna
*s
        assert(y2 > y1);
        assert(sna->kgem.mode);

+       if (full_height) {
+               y2 -= 2;
+               full_height = 0;
+       }
+
        b = kgem_get_batch(&sna->kgem, 16);
        b[0] = MI_LOAD_REGISTER_IMM | 1;
        b[1] = 0x44050; /* DERRMR */

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