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post #151 of 422
Quote:
Originally Posted by PostalTwinkie View Post

It has been stated a few times that you can't have a "man in the middle" device to do this, because you have to replace the PCB of the display itself, and that new ASIC has to be tuned to the panel you are using.

Basically you can't go GPU to VRR Unit to Input on display. It has to go from GPU to Input on display, the PCB with the input also being the ASIC for the VRR to work.
Go read the release a month or two ago it was about the 1.2a amendment to interfere, alter the 1.2 designation with an external media. Now whether it is a G-sync addon or not it never spoke of but it was not requiring new monitors to do so. It was stated clearly to modify existing monitors either by a medium or a G-sync addon to existing monitors.
post #152 of 422
Quote:
Originally Posted by Durquavian View Post

Go read the release a month or two ago it was about the 1.2a amendment to interfere, alter the 1.2 designation with an external media. Now whether it is a G-sync addon or not it never spoke of but it was not requiring new monitors to do so. It was stated clearly to modify existing monitors either by a medium or a G-sync addon to existing monitors.

Nvidia at one point stated they attempted this, but couldn't get the desired results because the boards on the displays themselves caused issue. They weren't able to successfully bypass the factory PCB.

By removing the factory PCB and replacing it with the G-Sync module they are able to get the near zero latency they want.

EDIT:

I know that people like to think that Nvidia is big and evil, or whatever the cool kids think these days, but do any of you honestly believe they would go through the trouble they have if they didn't have to? Do people not stop to think that the engineers over at Nvidia didn't think about doing an external adapter?

It could be done, but the results aren't the same. So, to achieve the desired results, they ended up going the route they did. Which cost them a ton of money in R&D, which is saying a lot, because there was no guarantee it was going to actually work out in the end.

Overcoming what essentially has been a flaw in technology since the setting of the CRT age isn't a small feat. It is a massive undertaking that no one else has been able to take on, for either technical and/or financial reasons.

This isn't a "slap this box between your computer and display to fix it" situation. These G-Sync modules are having to be tuned specific to the displays they are designed for. They are intricate devices that required the backing of a company like Nvidia.....

Also, I apparently lied about my previously large post being my last. tongue.gif

I am just rather passionate about this, as I am really excited about the next evolution in display technology as it concerns us as gamers. We have dealt with crap displays long enough, it is time technology provides a better experience. Or in the least gets us back to what CRT gaming was like....
Edited by PostalTwinkie - 4/6/14 at 5:14pm
    
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post #153 of 422
Quote:
Here is an excerpt from the document in question:
Summary
Extend the "MSA TIMING PARAMETER IGNORE" option to DisplayPort to enable source based control of the frame rate similar to embedded DisplayPort.

Intellectual property rights
N/A

Benefits as a result of changes
This enables the ability for external DisplayPort to take advantage of the option to ignore MSA timing parameter and have the sink slave to source timing to realize per frame dynamic refresh rate.

Assessment of the impact
The proposed change enable per frame dynamic refresh rate for single stream devices that expose dynamic refresh rate capability in EDID for DisplayPort interface. The source will be able to enable this with an SST interface or MST hub with physical ports. Logical MST port support of the feature is not included as part of this SCR. A generic framework to enable such feature for logical port is required that can accommodate other feature where stream related configuration is programmed in DPCD.

Analysis of the device software implication
SST device which support "MSA TIMING PARAMETER IGNORE" option will be able to expose the capability in EDID and DPCD to let source enable dynamic refresh rate.
Source driver would have to be updated to parse EDID and enable "MSA TIMING PARAMETER IGNORE" feature when source want the sink to be refreshed based on its update rate.

Analysis of the compliance test and interop implications
Currently this feature is tested as part of eDP CTS. New test would have to be added as part of DP LL CTS and EDID CTS.

That is what the amendment consisted of as of Nov 2013. Most of the rest of the article is a single debate over proprietary and what will happen if this becomes a industry standard.

http://www.hardware.fr/news/13545/amd-freesync-proposition-dp-1-2a.html

In French although translate with bing worked great. The above quote is actually in English in the article.
post #154 of 422
You source states:
Quote:
The source will be able to enable this with an SST interface or MST hub with physical ports.

MST has been an optional part of the 1.2 spec since 2009 but the first hubs didn't appear until 2013.

An MST hub enabling VRR isn't going to be any different from an external G-Sync module.
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post #155 of 422
Quote:
Originally Posted by Kane2207 View Post

You source states:
MST has been an optional part of the 1.2 spec since 2009 but the first hubs didn't appear until 2013.

An MST hub enabling VRR isn't going to be any different from an external G-Sync module.

And the hub is only $100... As far as the monitor price for the firmware update... idk.
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post #156 of 422
Quote:
Originally Posted by Ultracarpet View Post

And the hub is only $100... As far as the monitor price for the firmware update... idk.

Right, but $150 Nvidia is charging for G-Synv is too much for some people in this thread?

Also, the $100 you're quoting is for a hub that doesn't implement VRR. The actual hub required for VRR could potentially cost more.
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post #157 of 422
Quote:
Originally Posted by Kane2207 View Post

Right, but $150 Nvidia is charging for G-Synv is too much for some people in this thread?

Also, the $100 you're quoting is for a hub that doesn't implement VRR. The actual hub required for VRR could potentially cost more.

Trueeee dude, but I mean, what's not to like about more competition with VRR products?
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post #158 of 422
Quote:
Originally Posted by Ultracarpet View Post

Trueeee dude, but I mean, what's not to like about more competition with VRR products?

Nothing, I'm all for the competition to move the tech on and drive down prices. We're probably some way off yet though smile.gif
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post #159 of 422
Quote:
Originally Posted by Kane2207 View Post

Nothing, I'm all for the competition to move the tech on and drive down prices. We're probably some way off yet though smile.gif

yea, I can see why it is frustrating, though, when people all over the internet are like "OMG AMD FTW FREESYNC #1 G-SYNC SUCKS NVIDIA IS GREEDY LOLOLOL 420!!!!!"....
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post #160 of 422
You can deploy the firmware via the dispayport cable(or even via the USB hub). It is actually quite easy to upgrade 1.2/1.2a to 1.2a (AMD Refresh-Sink Enabled).
Edited by Seronx - 4/6/14 at 6:55pm
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