Problem with dual 1920x1080 displays and video deinterlacing

[pankov]

As the original poster here
http://forums.amd.com/game/messageview....light_key=y&keyword1=deinterlacing
I've upgraded my main monitor from 20" (1680x1050) to 23" (1920x1080) and found that at that resolution I can't select Vector Adaptive (or anything above BOB) while my second monitor (FullHD front projector) is active. At 1680x1050 there is no problem. At the moment I'm using 4670 with 512MB GDDR3.
A month or so ago I had the chance to try a 5670 with 512MB GDDR5 but default catalyst drivers at that time (10.1) didn't support it and the beta ones had some problems and it didn't work in dual 1920x1080 and Vector Adaptive deinterlacing too.

For the weekend I got a 5750 with 1GB of memory and it didn't have this problem. Sadly it's too hot for passive cooling as I did with the 4670 and I'll probably have to go for 5670 but I'm worrying if it will handle the two FullHD monitors? Also should I go for 1GB or 512MB will be enough?

So the question is - is it the better core (5750 vs. 5670) or the larger RAM (1GB vs. 512MB) or is it simplye the newer drivers that allowed Smooth video and Vector Adaptive Deinterlacing?

 

[NoQuarter]

Hm my 5770 has the option available all the way up to 5760x1080 and on single monitor at 1920x1080. I just googled the terms and according to an Anandtech article the driver will automatically remove settings it doesn't believe the card can handle if Enforce Smooth Playback option is enabled (at least in 5xxx, not sure about 4xxx).

I'd see if disabling that setting gives you the option again, and if it does it probably feels like you should have a faster card to handle it or something.

Also can you use CPU based deinterlacing in your media player?

 

[tweakboy]

ATI AMD driver dependent .

Catalyst is tough for some people a older version works better.

I would still say get ATI latest driver.. whql ,, gl

 

[pankov]

NoQuarter,
I've missed to write it here (I've done in the AMD forum) but as you suggested disabling Enforce Smooth Video Playback (ESVP) activates the better deinterlace methods. And I do need them - there isn't any software deinterlacing that could match the hardware one for quality and/or speed.

I've read a lot about ESVP and I kind of agree with it's idea. I simply don't like the way it's implemented. There should be a way to disable it permanently - so it doesn't kick in each time I change the refresh rate of my secondary monitor. Also it should detect the resolution of the video window - not the total resolution of both displays - I never use more than a single 1920x1080 for video. ... but that's another story and I think no one at AMD would care to improve this.
So that's the reason I'm thinking about upgrade. The question is - to what?
if 4670 with 512MB can handle 1920x1080 + 1680x1050 (3 837 600 pixels) it should be fair enough to believe that 5670 should be able to handle double 1920x1080 (4 147 200 pixels) (only 8% increase), right?
Can someone owning a 5670 confirm/deny this?

I can't afford to buy a new card just to find out it won't work.

Do you guys think that it could be a VRAM limitation?

tweakboy,
currently I'm using the latest official Catalyst drivers (10.3) and the problem is still present with my 4670. That's the reason (and the full HDMI bitstreaming support) I'm looking into the new 5xxx cards. I only don't know which one is the perfect for me, though.

 

[Hyperlite]

I really don't think it could be VRAM related. We've run multiple monitors on much less. I power a 1920x1080 and a 1680x1050 off the 256mb X1600M in my laptop all the time. never had an issue.

 

[pankov]

Hyperlite,
I too don't have a problem running the two 1920x1080 displays in general. The problem is when I want to use the advanced video hardware deinterlacing.
Also the problem is only with two 1920x1080. With 1920x1080 + 1680x1050 there is no problem.
Sadly I've read somewhere there is a "magical" limitation at 4M pixels.
The question is - which models are affected by it?