(In reply to comment #27)
> (In reply to comment #22)
> > Thanks. In the meantime, I'm going to push the temporary workaround -
> > obviously I still hope to find the real bug.
>
> Is there a way I can help? Attach some debug info or test something?
that restores the buggy behaviour. If you can keep running with that patch and with --enable-debug to check if any assertions are triggered and see how things progress.
(In reply to comment #27)
> (In reply to comment #22)
> > Thanks. In the meantime, I'm going to push the temporary workaround -
> > obviously I still hope to find the real bug.
>
> Is there a way I can help? Attach some debug info or test something?
If you change the define in src/sna/ sna_accel. c:
diff --git a/src/sna/ sna_accel. c b/src/sna/ sna_accel. c sna_accel. c sna_accel. c /bugs.freedeskt op.org/ show_bug. cgi?id= 61628 */
index ae6d3c1..5edad51 100644
--- a/src/sna/
+++ b/src/sna/
@@ -57,7 +57,7 @@
#define FORCE_INPLACE 0
#define FORCE_FALLBACK 0
#define FORCE_FLUSH 0
-#define FORCE_FULL_SYNC 1 /* https:/
+#define FORCE_FULL_SYNC 0
#define DEFAULT_TILING I915_TILING_X
that restores the buggy behaviour. If you can keep running with that patch and with --enable-debug to check if any assertions are triggered and see how things progress.