we have "mode2=mode2", even this is just useless or it maybe should be "mode2=mode4"
It would look logical that it would mean "mode2=mode4", but someone knowledgeable in the code should take a quick look (and a change).
Sorry about the phenomenal bug spam, guys. Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Fixed with git 07ddffb32e6293c77b32c94b87ec468caef3d6f5