Can't turn off advanced PhysX

[Icypie]

I understand that people with AMD have problems with the advanced PhysX. I have been having the same problem. So i heard that if i turn off PhysX, it will stop the stuttering problem. Everytime i go to change the settings it tells me to restart the game. So i leave the game, open it up and the settings are back to what they were before. So i can't turn of PhysX or change any of the settings. Anybody have any ideas?

[MonkeyspankO]

some people said it has something to do with out-dated physx drivers, especially on older cards. I have a nvidia, re-intslled my phys driver AND it still did the lag thing. So I also turned off the physx in the game options menu and that seem to have done the trick.
Lowering game settings had no effect.

[Icypie]

yeah, but i tried turning it off and it just reverts back to being on. So im asking if anyone knows how to turn it off because everytime i try changing settings and restart the game, it just goes back to what it was before. Thank you for commenting though

[PowerHaus930]

Check out this link for information on how to turn off Physx through the config file.
http://pcgamingwiki.com/wiki/Metro:_Last_Light#PhysX

1. Navigate to %LOCALAPPDATA%\4A Games\Metro LL\ and open user.cfg with text editor.
2. Locate line ph_advanced_physX 1 and change it to ph_advanced_physX 0.

[Icypie]

PowerHaus, thank you so much for your helpl. It works fine now. I have been trying to get it first came out, but i gave up and just got back to it. Thanks Again :D

[PowerHaus930]

No problem. I don't know why it doesn't turn off or it resets like that for some people but it's a really bad glitch and i'm sure it has discouraged more than a few people from playing the game - like you. I'm just glad that it worked for you. Enjoy the game! If you're ever stuck or need any help on a level check out my Ranger Hardcore Walkthrough on Youtube.
https://www.youtube.com/playlist?list=PLAt6fOwAOZ7i_yo-Js3nWdiiFXmxemXKm
I talk for just the first minute or so and then the rest is uncommentated. I also started a Shadow Ranger Walkthrough and that has commentary but I got discouraged from finishing it because of all the controversy about the achievement not showing up for people. I don't want people complaining to me if they follow my Walkthrough and get angry because they end up not getting the achievement anyway. That plus the fact that I actually got the achievement on a different playthrough by myself and I only recorded the part where the achievement pops up so there's no real way of knowing if I would get it again on the Walkthrough because it wouldn't notify me since I already got it..