https://bugs.freedesktop.org/show_bug.cgi?id=102300
--- Comment #11 from Michel Dänzer michel@daenzer.net --- (In reply to fayn from comment #9)
I updated bunch of packages today (linux-amd-staging,mesa etc) and now DVI-I-1 is not recognized but it is shown as DVI-D-1. This also brought new problem: monitors 'blink' randomly, about every ten seconds and it is VERY annoying.
Sounds like most likely there's been a regression on the amd-staging kernel branch you're using. Please file a separate report about that.