My AVC encode always hangs when using LookAhead BRC with depth 10, but not other values (11, 40, 100). I have permuted a few things like source video (including different sizes), target usage, target bitrate, and they all hang. It looks like 10 is supposed to be a legal value.
Is there some other interacting parameter that I may have set incorrectly?
You are right, you are using the latest driver available on intel.com and it does have this issue. A fix will be available with the next driver update. Until then please use depth = 11 or higher, should be no big difference between 10 and 11 actually.
Thank you for reporting the problem.