I just went from a desktop with 980-Ti to a lapto with an RTX 2060. These cards are supposed to have similar performance numbers with the RTX 2060 coming out on top (and though I am on a mobile version of it, I checked benchmarks that showed that this is still supposed to be the case between a desktop 980-Ti and a laptop’s 2060.)
On my desktop I had a 4K 60hz display, and it ran smoothly, I copied the mpv configuration in it’s entirety over to the laptop, which has a 1080p screen at 144hz (should still be easier than a 4K display to render) and it lags like crazy, hundreds of delayed frames in seconds. I changed the screen’s refresh rate to 60hz but it still lags a lot, even with slightly lowered settings.
Note: I originally thought that the interpolation setting was causing the lag, but even with interpolation it’s a stuttery mess (even at 60hz)
I tested it both with optimus-manager and bumblebee just to see if one or the other was the issue, but I got roughly identical performance.
(I’ve also noticed less than ideal performance in games, if I run anything with DXVK at 144hz it stutters like there’s no tomorrow, haven’t tried it at 60hz but I’m pretty sure that this is not normal at all)
Edit: Oh yeah also, if I use optimus-manager to start the computer on nvidia when running on battery, it poops out on me after I log in (screen blinks on and off, but never displays an image it’s just black when it’s on) but if it’s plugged in, it’s fine with starting out as nvidia. A really bizarre issue, although it does point to the possibility of this being a power management related issue.
What could be causing this and how do I fix it?