on a Sun Ray (xBGR display) and RENDER off.
Got a black rectangle.
The problem is gone if ipc is turned off.
Created attachment 587615 [details] [diff] [review]
Does it look correct?
With xBGR display, FindVisual returns null for RGB24.
Then it will get to NS_ERROR("Need X falback surface, but visual failed");
Comment on attachment 587615 [details] [diff] [review]
Makes sense to me.