G Sync is only DRM
Posted: 27 Jan 2015, 15:35
Who you gonna call? The Blur Busters! For Everything Better Than 60Hz™
https://forums.blurbusters.com/
It means that somebody proved nothing stops Nvidia GPUs from using vanilla Adaptive-sync panels (laptop eDP panel used above it seems) except for driver-triggered verification polls from the card.CastIrony wrote:Does this make it more likely that we'll see combo G-Sync/Freesync screens, because they're probably similar internally? Or less likely, because simultaneous support for Freesync would violate Nvidia's terms?
Well said. I'm waiting for some reputable sites with dedicated test labs with wipeable machines to try this out.Trip wrote:I would be very carefull with this driver if this is indeed true then nvidia will get a bad name. If this is not true however it might be a very good opportunity to install some nasty malware on your system. It seems too good to be true to me. Maybe I am a bit paranoid however about this but its still a .exe be carefull.
Here is the forum link:G-SYNC doesn't use VESA Adaptive-Sync. It was created before Adaptive-Sync was added to the DisplayPort spec, and works over DisplayPort 1.2 which is prior to Adaptive-Sync's inclusion. The G-SYNC module also has a physical 768MB memory cache to buffer frames, you can't just software your way around that. The display refreshes when the display controller tells it to, and the GPU has no jurisdiction there. If the display controller is not programmed for dynamic refresh rate there's no amount of driver or signal modification you can do to make it happen, at the very LEAST it would require a firmware update on the monitor side. Adaptive V-SYNC is also something completely different, it's just a dynamic on/off toggle for V-SYNC, and has nothing to do with changing the monitor's refresh frequency.
If the monitor's scaler is not designed for constantly varying frequencies, it will not have a fun time trying, in most cases. But since I have an NVIDIA GPU (780 Ti) and two DP 1.2a monitors (Dell U2414H and U2415) I decided to put this little theory to the test and installed the modded driver. As expected, did not work, no G-SYNC option. I also notice in the comments of the article there isn't a single comment from someone else saying "it worked for me" or anything. Just some people saying it didn't work, or asking technical questions about how it's possible for this to work. Which it isn't.
I'd be more convinced if he'd used a maxwell GPU, instead of a 780ti, since they have DP 1.2a ouput and kepler just has 1.2?GameLifter wrote:But since I have an NVIDIA GPU (780 Ti) and two DP 1.2a monitors (Dell U2414H and U2415) I decided to put this little theory to the test and installed the modded driver. As expected, did not work, no G-SYNC option.