Stutters since 1.6.7 update

Hello everyone,
I don´t know if I´m the only one, but since last 1.6.7 update I´m having stutters in every race, no matters number of cars, track or day time. Before 1.6.7 the game was completely smooth running almost everything in high settings, and even after lowering graphics & performance settings as texture quality, track reflections and more the issue persist.
I have a fine-tuned Windows version optimized for gaming that´s completely up to date as well my graphics card driver, therefore I don´t thik that can be the reason. And as I said before, the game was running completely smooth before the update.
Restoring game files in Steam and deleting my AMS 2 folder in my documents also didn´t solve anything.
I´m stuck at the point I don´t know what else I can do.
Any help would be much appreciated, thanks!

 

Hi Marius, thanks for your answer. I will try that and see if it works
Best,
Carlos

 

Hi Marius, stutters are gone but not competely. They only happen when dusk time comes. Is that normal? I think my system is enough powerful to ride them… Thanks

 

Try turning particles down to lower levels and see if it helps ..

 

Thanks very much for your tips Marius an the quick answers.
All of these options were already disabled and in my graphics tab everything is switched to medium, motion blur is off and rendered frames in advance to 1.
Did the game after this last update become more demanding? I don’t know how can I run everithing at high settings before an now even lowering everything I still having stutters…
Also I have to say I can run LMU which is way more demanding at high graphics settings and runs smooth, that’s why I think is something related to this last update.

 

Thanks Kuku for your tip. I’ll try also that

 

Ok, thanks for your help.

 

I've found dawn/dusk transitions to be pretty tough on hardware, depending on the circuit you select. At Jerez 88, simply looking in the same direction as turn 4 can make my avg fps dip from 120+ down into the mid-30s. Take the same turn one hour earlier/later on the game clock and you get a deadlocked 120Hz with lots of GPU headroom to spare. I've tested it with an empty circuit and w/48 AI opponents and it's exactly the same either way. It is a bit of a bummer as those day/night transitions can be breathtakingly beautiful (especially if you have been running in a long stint in the darkness and sunrise washes over the track in the early morning).

 

Hello Carlael,
Just to understand what you call stutters. Does the landscape scroll in a non-smooth manner for example and particulary on curbs?
Does it look like this? look at the lanscape "fluidity"

Best regards
Charles

 

Hi Charles,
It‘s something like that but harder in my case. Not only the landscape, also the cars that are in front of me and also happening particulary on curbs. Racing in 1 hour day-night-day races (with a x25 tome progression) it happens very softer, but doing racings with normal or even x5 time progression at dusk is very hard, doesn‘t go smooth al all. I’ve never experienced this before last 1.6.7 updates. I hope did explain it well.

 

Hi, in he video it's true we don't see micro stuttering on cars, but it's often happening on cars too.
So is it harder because more noticable? or harder because it's on the cars too?

Another question, because i'm not sure, i understand than there can be more or less stuttering depending on conditions, but stuttering can evolve? during a race in your case? (like at dusk?)

I had long fight against micro stuttering for years.(spent so many hours) Luckily, hardware evolved in good way (as drivers). But depending on sims, it can still happening, and when it does, i usually spends multiples hours to find a solution because i absolutly CAN'T drive with micro stutt (it makes me sick). I know that lot's off people don't mind about it and they are lucky.

AMS2 suffers more from micro stutt (like Iracing). Somme others sims absolutly don't, like R3E, Lmu, ACC.

From my long experience in micro stutt (and if it's really micro stutt in your case), solutions can be multiples because of all kind of parameters in the equation.=> hardware/drivers/ graphic engine and some games options=> lots of combinations

About micro stuttering, what's important to understand, is than it's not depending of how many FPS you can achieve. You can obtain 260FPS and have micro stutt. The only goal about FPS is to be able to reach at least the refresh rate of your screen (for me 60FPS for 4K projector), but if you've got PC Screen, it's often way more, like 120, 160hz (so same about FPS)

Micro stutt happens when frames are not equally distributed in 1 second lap time, leading to stuttering.
Exemple, on my screen of 60hz(hz shouldn't be used anymore), if you split one second in 4 quarters, graphic cards send 100 FPS on the first quarter (than the screen can not display of course), nothing or few during the second and the third quarter , and a lot amout on fps during the last quarter (than the screen can not display either ).
That leads to an impression of not fluid/smooth image while PC is totally capable and tell you it can display 250 FPS)

So the main goals is to be able to synchronise perfectly frames graphic cards is sending and refresh rate of the screen, in order frames are equally distributed. The main and easy option to do it is using Vsynch or freesync, because that's what it does, and this usually the most efficient option. You'll have less of FPS than your pc is capable off, which can seems annoying, but a so smooth scroll, especially important in simracing.
I'll do a video to show difference of perception of fluidity with and without Vsync

but that's not the only thing to do.
The first one is to ensure than XMP memory profile is enabled (maybe another name for amd users) and at the good speed.(there are sometimes 3 xmp profiles with differents speed) choose carefully the speed of your RAM. => ensure that memory is functionning at it's optimal CAS is mandatory and if not can cause micro stutt. I experienced than a more quicker memory does not garantee less microstutt. (so sometimes try a buddy's memory can be interresting)

Another parameter which can affect in good way is in addition to V sync is using limiter of FPS (in my case I often use limiter of 60 OR 61/62 fps in nvida drivers (or in some games). It prepare the right amount of calculation, and a good addition to fight micro stutt (you have to test how many frames between 60 precise, or a little more is better cause sometimes precise 60 is not the best)

In games parameters who affect the frames calculation are interresting (pre rendered frames in AMS2 for exemple ). You've to try if it changes anything.

Be sure to match game resolution and refresh rates with windows monitor selected refresh rates (or make some testing changing theses parameters) and of course, chose if you can the native resolution and refresh rate of your screen.

PS: usually, micro stutt don't care about being at low graphic presets or high. But sometimes in some games a particular setting can cause micro stutt....so keep basic settings disabling special options not mandatory. You'll still can add it later and see.
DO not change more than one settings at a time

That's it for the basics to fight about micro stutt. For nvdia users some parameters (accessible in classic nvidia control panel) like tripple buffering can obtain good results and be effective (i learnt this talking with Nvidia devs years ago) and there are other but less effective or with too much random results.

Have a good day (or night?)

Charles

 

Hi Charles,
first of all thank you so much for taking your time to help me.
I´m like you, I cannot drive with micro-stutters, that´s why I´m still fighting to solve this issue. With harder I mean is more noticeable.

Referring everything what you say me, I have triple Asus screens with 144hz refresh rate.
In graphics settings .json file I have capped my fps to 140 to leave a bit of room to the graphics card and V-Sync in game is also enabled. I did try enabling either V-Sync, G-Sync in my Asus screens and both.With V-Sync I have to say this makes the image better than without, but the micro-stutters still there. Also before capping fps the game was smooth.

I was always using a old version of AMD drivers (pro version, not the normal one) which always has been working perfectly, giving me a smooth image even having almost all game settings being on high. I´ve tryed several newer driver versions including the most recent one (I could say around seven in total), and that didn´t solve the issue.
Also I have to say I never did install the AMD Adrenalin sofware because it sucks so many resources from the computer, just did install the graphics card driver and has worked always fine.

The unique new thing I did and following your tips, is enabilng XMP in BIOS, that was not matching my RAM speed, but honestly I don´t think is the cause.

But, in general what I can´t explain myself is this:

Before the 1.6.7 update, running the game completely smooth wih almost everything set to high and haven´t changed anything in my system, from one day to the next one when the 1.6.7 update came, suddently the stutters came also, forcing me to lower in-game graphic settings to medium or even low and capping fps to get the same smooth as I had before in a computer with a 16 GB graphics card which are enough powerful (no bootlenecks).

So, after this my conclusion is
Is there something in this new update that´s making my system not running as well as before?

Best regards,
Carlos

 

Dont forget fullscreen with g-sync and Vsync AND NULL so the cap is automatically done, works flawless here. Activate steam fps and frametime overlay to check fps, try alt tab and back when its not capped correctly.

 

Do you mean I should be on full screen instead on windowed mode if I use G-Sync?

What you mean with null?

 

I run my gsync-enabled display here in AMS 2 with in-game vysnc disabled in both borderless and exclusive fullscreen modes (while using the NVIDIA driver-based fps cap). I avoid microstutter entirely (as confirmed with both Steam Performance Overlay and RTSS Overlay Frametime graphs). The only way I can get AMS 2 to stutter on my machine is to enable full AI pit crew displays with a full grid during rounds of stops mid-race (so I set my game to only show the player pit crew).

Things may have changed since the last time I used an AMD GPU, but in the past you did need to install the AMD software suite to enable Freesync for your PC, along with disabling vysnc in-game for best results. I find it hard to believe that the AMD driver suite is eating resources on your PC enough to affect ANY game. You have the second fastest gaming CPU on the Market - AMD Adrenaline is not causing that CPU any problems unless something is seriously wrong with the system or Windows install. I'm not even sure how you are enabling Freesync without the Driver Software Suite installed.

In your first post you also mentioned that your Windows install is modified for gaming or something similar? Those crap cleaning programs and modified ISOs do not make games run better unless you are trying to run them on ancient hardware that would struggle to run Windows on its own (and your hardware is not in this category). Otherwise, removing OS stuff can cause all sorts of issues that make troubleshooting a hassle. I understand that the W11 telemetry stuff is a nightmare, but there's not really any independent benchmarking out there that shows normal Windows 11 installs affect game performance.

 

Hi, thanks for your post, but let me clarify a couple of things

I‘ve not mentioned nothing about Freesync in my posts, just was talking albout G-sync in my screens and V-Sync in game.

I have this grapics card since two years and never had the needing to use any of the additional features that the software offers, even with my earlier computer ( an old Mac Pro with Windows) which was no so powerful as my current one. And as I said before the game was running completely smooth with no micro-stutters just with the driver installed.

The Windows version I have installed is actually a normal version only de-blooated with a software that removes unuseful apps for me as google drive, Microsoft Teams, visual effects, etc. I didn‘t do things like modifying ISO or the Windows registry that can create several performance problems. My system is running absolutely smooth and properly.

And also I have to say, I‘m running three simulators on this system and Automobilista 2 is the only one I‘m having this issue with, and again, only when these last 1.6.7 updates came.

 

Hi Carlos,

not an easy thing to fight micro stuttering.
Good thing you set up your ram with xmp profile. It can only have good conséquences (even if not clearly magical on your system).
full screen s is as mentioned before important.

about your cap of fps, i would cap it at 144hz like your screens. Good thing you testes older drivers.
another test you can try if possible...put the graphic card of a friend...and other Ram also.results can be verry interresting.
Two years ago, before changing my whole configuration , i change my ram for another famous and quicker ram....micro stuttering was lot worse....Just another brand and speed
so many parameters....
anyway you re searching the good way
good luck, cause i can t propose you anything else.
Solution is on the equal répartition of frames...and.find the good settings or combinaison of settings.