you should be able to software decode most 1080p videos though with that e4500. Maybe a modest overclock is needed for really high bitrate (~35 megabit) videos.
I had a 4870 previously. Idk if it was because it had uvd 2.2, or because I was using pci express x16 v1.1, or because it was an old version of lav, but copyback wasn't fast enough for 1080p. This was before madvr supported native dxva and copyback was the only hardware option. I have the nvidia counterpart as well, the gtx 260, and it worked fine with cuvid.
anyway, as for the black screen, do you think that might be something specific to the video you're testing? Or does it happen with all h264 videos?
Last edited by MlNDBOMB; 06-22-2014 at 02:01 PM.