Nvidia G-Sync causing intermittent stuttering in Premiere (and After Effects)
Just ran into this issue recently, but I have a hunch it's been around for a little while. It's an annoyance more than anything, but it seems like something that could be fixed.
I have a monitor that supports G-sync (Nvidia's adaptive sync technology) that I use for games. By default, G-sync will remain "on" globally (even on the desktop) unless you force it off. I've noticed that, when it's on, if I'm in Premiere then (about 50-75% of the time) whenever I start/stop playback, move a clip on the timeline, or open something in the source monitor there is a brief half-second or so where the mouse cursor skips around like the program is hanging or freezing. It makes the program feel a lot more sluggish than it actually is.
It took a bit of troubleshooting to realize that G-sync is the issue, but it definetely is. If I turn it off the weird stuttering goes away (and everything is nice and smooth). If I just move the Premiere window fully over to to my second non-gsync monitor, it goes away. If I just move the playback window to the second monitor, but leave everything else behind, it goes away.
Seeing all this, I turned the "G-sync indictator" on in the nvidia drivers. This shows when G-sync is on or off, and it pretty clearly revealed what was happening. As you start and stop playback, or make any other big "change" to the program or source monitor, it switches G-sync off and then back on for some reason. This seems like either a bug in Premiere or in the Nvidia drivers, I'm not sure which. I've had a g-sync monitor and used Premiere for quite some time, so I know this hasn't always been the case.
I should mention that this happens in After Effects as well, but not any other programs on my computer as far as I can tell (or at least am able to notice).
Right now I'm just turning off g-sync whenever I'm editing, but I feel like there has to be a better solution to this. Does anyone else have experience with this weird behavior?
