Dreamcolor monitor issues with Quadro 4000 for Mac via displayport

[Robert Narholz]

Jen,

I have the same issue. Have you found any solution yet?

Thanks

Robert

[Jennifer Chiu]

Hey Robert,

Unfortunately I haven’t found a solution yet. My workaround that I’ll end up doing is getting an Aja card or blackmagic card and connecting the dreamcolor to that instead of directly to the quadro card. Here’s some really useful dreamcolor articles, but has nothing about directly connecting the dreamcolor to a quadro graphics card:

https://provideocoalition.com/index.php/atepper/story/hp_dreamcolor_mac_connectivity_amp_functionality_update_2012a/

If I ever come across a real solution, I’ll post it here. Have you had any luck?

Jen

[Robert Narholz]

Jen,

Thanks for answering this old thread. I tried many things and it appears that the Dreamcolor simply does not like DisplayPort signals from the Quadro, period. For some reason, monitoring PremierePro through the Dreamcolor DisplayPort makes PP quite sluggish, too. So – as you say, it’s back to good old AJA (or BM). I really had hoped to be able to stick a second Quadro into my Mac (as it just requires only one PCI slot), and hence have 3 monitors plus Dreamcolor options… but hey, I guess I’m getting greedy.

Thanks for the link!

And if you do find a solution… I can’t wait. Greed dies last.

Yours

Robert

[Mart Manic]

Well I bet if you run it on the same machine but under Windows, it will work fine.
I see the same exact problems with displayport on a dual boot 2011 MBP (OSX 10.6.8) – with osx the picture looks awful, booting to Windows (7, 64bit) and everything works exactly how it should (meaning no aliasing, win reports 32 bit color and the Dreamcolor engine is working).

So I think it’s definitely an osx (or some weird EDID, so basically still osx) issue first.
If anyone would shine in with a solution… 🙂

We are all atomic and subatomic particles and we are all wireless…

[Mart Manic]

Oh, totally forgot about one important fact so answering my own concerns here – by provideocoalition the thunderbolt/displayport on a 2011 MBP outputs YUV (apparently under OSX it does) so it’s a lemon.

We are all atomic and subatomic particles and we are all wireless…

[Robert Narholz]

Very interesting about the working Windows output. So it’s the MacOS…? Do you know if all newer Macs (starting MacPro 2009) output YUV, or only the MacBook Pro?

[Mart Manic]

I think all that use displayport (or maybe it was due to an OS update, I can’t remember exactly).
Google is your friend.

We are all atomic and subatomic particles and we are all wireless…