2 different cards, 3 displays, problems with video and audio.

B2G

Commendable
Apr 28, 2016
1
0
1,510
Background:
So I built my bang-for-the-buck-rig about 6 months ago to do occasional video editing. W10x64(bleh, I miss mint with xfce) Gigabyte GA-78, AMD FX8350, EVGA GTX 650, 2x 4GB DDR3.

I have a 900x and a 768x monitor running off that GTX 650, perfectly smooth playing a 1080p movie on one and working on the other.

My desk is in my office and I wanted to set up my 720p projector in the warehouse so I bought a used GFFX 5200 with VGA & S-Vid. I'm using VGA because I have a 45' run to the projector.

Problem:
So the first thing I do on startup is throw a 1080p movie onto the projector. The first thing I notice is the sound is messed up, which is playing through my stereo. I think it's the stereo or cable, moved sound to my monitor with a different cable. Same thing. It sounds like crackling/electronic. Like robots have taken over hell. I don't know how to describe it. VERY electronic sounding, like Kanye West after smoking a cigar.

I noticed pretty quickly that my FR has gone down substantially on all monitors. Get some action on the movie and I must have been under 10 FPS. That's when I noticed the sound distortion was happening at the same rate. Afterburner said GPU1 (GFFX) usage about 30% and GPU2 (GTX) 10%, CPUs average 25%, didn't look at RAM but with only the movie up, didn't care. One thing I noticed is that the computer was reading the GFFX card as the first card and using the projector to display bios.

So I pulled the GFFX 5200. PC's back to normal.

I booted up with the card again, everything was okay. Plugged the projector into the card, everything was okay. Started the movie on a monitor, threw it over to the projector. bleeehhbbbluhbbleh. sloooowwww. Audio's blehph again. Grab the movie window, throw it back over to a monitor. AWESOME! normal again.

Is my card just too old and tiny to play a movie?

Think my card might be busted? It is used. Is the audio a sign of this?
Is there some driver settings or CMOS settings I could change to make my GTX card (and subsequently my monitors) the primary display output?

Worth noting is that my MB only has a PCI slot available for the second card, severely limiting me, but I still feel like a 256mb card should be able to display its own 720p output.


EDIT: from Nvidia:
Dual RAMDACs (up to 400 MHz) for display resolutions up to and including 2048×1536 @ 85Hz
Integrated NTSC/PAL TV encoder support resolutions up to 1024×768 without the need for panning with built-in Macrovision copy protection
DVD and HDTV-ready MPEG-2 decoding up to 1920×1080i resolutions
DVI support for compatibility with nextgeneration flat panel displays with resolutions up to and including 1600×1200

Also: I'm currently hooked up to a 6' VGA cable.
 
Solution
Since you are trying to display a 1080p movie on a 720p projector, there has to be some kind of realtime transcoding happening. That is probably why everything is slowing down. Try playing a 720p source or convert a 1080p to a 720p standalone and then play it.

kanewolf

Titan
Moderator
Since you are trying to display a 1080p movie on a 720p projector, there has to be some kind of realtime transcoding happening. That is probably why everything is slowing down. Try playing a 720p source or convert a 1080p to a 720p standalone and then play it.
 
Solution