https://bugzilla.kernel.org/show_bug.cgi?id=82551

--- Comment #9 from Javier Fernandez elhoir@gmail.com --- well, actually i havent tested upstream versions of 3.16 kernels, only Ubuntu kernels (which are patched)

thats why i ask about installing upstream ones...

what do u think?

Also, i can remember earlier releases of 3.16 kernels on which radeon open source driver didnt work ( 3.16.0-8)

3.13 -> works 3.14 -> doesn't work 3.15 -> doesn't work 3.16 -> works

seems so, yes