Which AMD Radeon HD 6870/Tri monitors on Gigabyte 6850?

[alex_tzardea]

You all should read this,as it will explain you why certain ports don't work,why framebuffers are different from each other,and why Duckweed is the FB to use with 6850(Duckweed=4 connectors,Bullrushes=6 connectors).It will also show you how to make your card fully working.Cheers!

www.insanelymac.com/forum/index.php?showtopic=273937

****DELETE the underscore(_) after insanelymac,i don't know what bug is this,but the forum adds it it's i.n.s.a.n.e.l.y.m.a.c.DOT com

 

[trickybreeze]

You all should read this,as it will explain you why certain ports don't work,why framebuffers are different from each other,and why Duckweed is the FB to use with 6850(Duckweed=4 connectors,Bullrushes=6 connectors).It will also show you how to make your card fully working.Cheers!

www.insanelymac_.com/forum/index.php?showtopic=273937

****DELETE the underscore(_) after insanelymac_,i don't know what bug is this,but the forum adds it it's i.n.s.a.n.e.l.y.m.a.c.DOT com

orrrrr you can save hours and maybe days and just follow my post lol

 

[regnaD kciN]

I got my 3rd monitor working thusly,
assuming DSDT, info.plist, and smbios.plist are correct for motherboard.

using Gigabyte gv-r6870c-1gd amd radeon series HD 6870

secret, for me, was a dummy mini-display/dvi adaptor in 2nd mini display port.

1-top mini display port = active mini display to dvi adaptor with NOTHING CONNECTED
2-2nd min display port = active mini display to dvi adaptor with dvi to hdmi cable running to TV
3-HDMI port = hdmi to DVI adaptor to DVI monitor
4-DVI port = DVI to DVI monitor

TA DA!

 

[trickybreeze]

tricky....thanks! I've got 3 discreet monitors. Now, I'm trying to get Avid MC 6.0.1 to Full Screen Playback on my monitor of choice (which is a large TV with various inputs, presently using HDMI/DVI combo input) I can get Full Screen Playback only on the two DVI only monitors using active adaptors.....hmmmm

hmmm. im not sure. i dont use avid. i get fullscreen playback for hd videos with VLC on all my monitors. maybe avid has some limitations? i dont do any video editing. maybe use the hdmi/dvi combo on another monitor and get an DVI/HDMI adapter for the one youre trying to get fullscreen. as far as i know the only active adapter you need is for the display port.

 

[regnaD kciN]

Got It!! Found bug in their application. I, simply kept changing what I wanted to be the Full Screen Playback monitor and viola! choosing monitor 3 activates monitor 1!

 

[genzai]

Hey guys,
just wanted to let you know that this card:
http://www.newegg.com/Product/Product.a ... 6814131433

does 4 monitors native in 10.7.3 with latest chimera. As long as your using active adapters (or native DP/mDP monitors) for the 2 mDP ports there is nothing else to do. works out of box. great card, only single slot too. I haven't tried it with earlier OS versions or chimera before 1.9

Cheers,
g\

 

[regnaD kciN]

now trying to get 10.7.4 to load


I got my 3rd monitor working thusly,
assuming DSDT, info.plist, and smbios.plist are correct for motherboard.

using Gigabyte gv-r6870c-1gd amd radeon series HD 6870

secret, for me, was a dummy mini-display/dvi adaptor in 2nd mini display port.

1-top mini display port = active mini display to dvi adaptor with NOTHING CONNECTED
2-2nd min display port = active mini display to dvi adaptor with dvi to hdmi cable running to TV
3-HDMI port = hdmi to DVI adaptor to DVI monitor
4-DVI port = DVI to DVI monitor

TA DA!

 

[DamperLullz]

Unless you're adamant about upgrading to a 6870, you might be able to get your current 6850 running three displays. Mine does, at any rate. HDMI, DisplayPort and DVI:

Power Color Radeon HD 6850

Can you use the DVI and the HDMI with the Powercolor 6850?

 

[allingk]

6870 Tri Monitor Working

Thanks "trickybreeze" I followed your link and explanation and BAM it works great on my XFX ATI 6870. Thanks man. Buy the way this is running on a Z77/Core I7 Ivy Bridge motherboard/CPU and a ML installation.

Works great!!