Left 4 Dead 2

Left 4 Dead 2

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Tunatron9000 Dec 26, 2019 @ 6:08pm
[RESOLVED] lag makes the game unplayable
Ryzen 3 3200G CPU and AMD radeon rx 580
I got a new computer because my old computer crapped out (Radeon HD 7800 and AMD A8-5600K APU (4 CPUs), ~3.6GHz)

Now, The game has lag that literally makes it unplayable, how can I fix this? According to the requirements this game should be running super fast.

Edit: For newcomers I am talking about lag in the context of FRAMERATE and FPS, NOT internet packets, NOT internet, it is not a network issue.

Edit 2 Resolution:
I upgraded my OS to windows 10
To all those with similar problems:
For the AMD Radeon RX580, driver support is not included for windows 8.1, which means you will be using integrated graphics. To upgrade to windows 10, download the media creation tool from this website: https://www.microsoft.com/en-us/software-download/windows10
then open it, and select "upgrade my PC to windows 10"
If you want, you can select to keep files and apps, but it's recommended to do a clean install.
If you have a valid windows license your license will upgrade to a windows 10 license

From that point on you will have a win10 machine and you will have driver support and be able to download the drivers which will allow you to actually make use of the GPU.
Last edited by Tunatron9000; Jan 15, 2020 @ 9:59pm
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Showing 1-15 of 78 comments
reola17 Dec 26, 2019 @ 11:05pm 
lower to medium setting? the game still looks good on medium. and lower the shader setting to medium.
Joshua Dec 27, 2019 @ 5:57am 
install drivers
Samwise Dec 27, 2019 @ 6:03am 
Originally posted by shortcakechocolate99:
lower to medium setting? the game still looks good on medium. and lower the shader setting to medium.

Er, you do understand tc's specs murder this game? Why the hell should tc lower settings exactly?

Tc, are talking about an actual online lag, or frames per second?
Red™ Dec 27, 2019 @ 6:05am 
Originally posted by Samwise:
Originally posted by shortcakechocolate99:
lower to medium setting? the game still looks good on medium. and lower the shader setting to medium.

Er, you do understand tc's specs murder this game? Why the hell should tc lower settings exactly?

Tc, are talking about an actual online lag, or frames per second?

Actually, some setting in the game isn’t well optimized for some laptop/desktop. Turn down anti aliasing, and then turn all setting off, Experiments, try new setting. Worked for me in L4D1. Had stuttering but fixed it by going to medium. Disappointed, but it’s better than unstable 140 FPS.
Samwise Dec 27, 2019 @ 6:08am 
Originally posted by Red Son™:
Originally posted by Samwise:

Er, you do understand tc's specs murder this game? Why the hell should tc lower settings exactly?

Tc, are talking about an actual online lag, or frames per second?

Actually, some setting in the game isn’t well optimized for some laptop/desktop. Turn down anti aliasing, and then turn all setting off, Experiments, try new setting. Worked for me in L4D1. Had stuttering but fixed it by going to medium. Disappointed, but it’s better than unstable 140 FPS.

Unless, tc means ping, not fps. Lets wait for response

But laptop or not, only setting that might cause some fps issues with tc's specs, would be 1980x1080 + 8xAA and some forced stuff from drivers.
reola17 Dec 27, 2019 @ 7:17am 
Originally posted by Samwise:
Originally posted by shortcakechocolate99:
lower to medium setting? the game still looks good on medium. and lower the shader setting to medium.

Er, you do understand tc's specs murder this game? Why the hell should tc lower settings exactly?

Tc, are talking about an actual online lag, or frames per second?
its an old game :)
sometime it freaks out with newer driver
Samwise Dec 27, 2019 @ 8:12am 
Originally posted by shortcakechocolate99:
Originally posted by Samwise:

Er, you do understand tc's specs murder this game? Why the hell should tc lower settings exactly?

Tc, are talking about an actual online lag, or frames per second?
its an old game :)
sometime it freaks out with newer driver

Sounds unlikely. Still using source engine, and i doubt that Ati or Nvidia would ♥♥♥♥ up their drivers so bad it would make L4D2 unplayable.
Tunatron9000 Jan 4, 2020 @ 1:20am 
single player lag, online lag has nothing to do with it. I play online games regularly with no lag at 100mbps DL and 15mbps or so upload.

I put the game on the lowest settings and it still lags. I've had similar problems with cry of fear but it is a separate issue entirely... (that issue I fixed by installing an OLDER graphics card, because this one doesn't have good OpenGL support.)

I have latest drivers on everything. My last conclusion would be a memory leak but I have 16GB RAM and my computer had not even been booted for an hour when I loaded the game up, so it seems unlikely.
Originally posted by Tsuntsun-maru:
single player lag, online lag has nothing to do with it.
Perhaps you are not a native English speaker. Not picking on you. Just trying to be helpful.
"Lag" is generally only used to describe a high latency (high ping) internet connection. Instead, use the term "low FPS" or "low framerate." Can you tell us the framerate you're getting as well as what resolution you're using?
Samwise Jan 4, 2020 @ 10:54am 
Do you get 60fps or more when playing or does your actual framerate drop? You can download FRAPS to see your framerate ingame.

Whatever is happening is not lag, because thats online related stuff. Does enemies teleport or freeze or something?
Ξλαιρε* Jan 4, 2020 @ 12:17pm 
Originally posted by Samwise:
Do you get 60fps or more when playing or does your actual framerate drop? You can download FRAPS to see your framerate ingame.

Whatever is happening is not lag, because thats online related stuff. Does enemies teleport or freeze or something?
Go to Setting --> In-Game --> In-game FPS counter
Gracey Face Jan 4, 2020 @ 12:20pm 
What lag are you talking about? Framerate drops or a delay between inputs and them effecting the game?


If the delay on inputs, turn off Vsync. Vsync always causes input lag, but the source engines is far worse than any I have ever experienced.
Red™ Jan 4, 2020 @ 1:31pm 
Originally posted by Richard Stroker:
What lag are you talking about? Framerate drops or a delay between inputs and them effecting the game?


If the delay on inputs, turn off Vsync. Vsync always causes input lag, but the source engines is far worse than any I have ever experienced.

*laugh in arkham knight port*
Gracey Face Jan 4, 2020 @ 3:06pm 
Originally posted by Red™:
Originally posted by Richard Stroker:
What lag are you talking about? Framerate drops or a delay between inputs and them effecting the game?


If the delay on inputs, turn off Vsync. Vsync always causes input lag, but the source engines is far worse than any I have ever experienced.

*laugh in arkham knight port*

I only played Asylum and City (alway meant to play knight and never got round to it. I might even own it).

The Vsync wasn't too bad in those from what I remember.
Red™ Jan 4, 2020 @ 3:12pm 
Originally posted by Richard Stroker:
Originally posted by Red™:

*laugh in arkham knight port*

I only played Asylum and City (alway meant to play knight and never got round to it. I might even own it).

The Vsync wasn't too bad in those from what I remember.

Both game isn’t still a good PC port. Arkham Asylum struggle on newer AMD system. Arkham City have terrible utilization of DirectX11 engine. Arkham Origins was just “okay” port. Arkham Knight was the WORST of all.
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Date Posted: Dec 26, 2019 @ 6:08pm
Posts: 78