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neth392's avatar
11 months ago

Unplayable Keyboard Input Lag + 100% CPU Usage

Product: Battlefield 2042
Platform:Steam-PC
Please specify your platform model. PC
AMD or Nvidia Model Number RTX 2080
Enter RAM memory size in GB 32
Are you using any software with an overlay? Yes
If yes, can you list them here? Steam & NVidia Geforce Experience
If you disable this software, does that have any effect? No
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Conquest
Please select your region North America
On which server did this happen? All
When did this happen? (dd.mm.yy hh:mm) 6.23.2024
Summarize your bug I was playing 2042 fine for months at release, almost 100 hours in. I put it down for a few months and came back around Feb of this year. It seems an update has made the game unplayable for myself and many others when researching this further. I am running an OC'd i9700k and RTX 2080; not the greatest but I can run every other game I've tried fine on Low-High settings based on how optimized it is. I can run 2042 at around 100 FPS on low settings. However, the keyboard input lag is unplayable. When I try to move there is a few millisecond to sometimes over a second delay in movement.  It appears the game is hogging 100% of my CPU. No matter how many applications I close it persists. I have tried 4 different keyboards from all different manufacturers, and the issues persist. So it is not my keyboard. Mouse input is fine and highly responsive. I've read up on this and it seems every other person has the exact same CPU; the i9700k. I've tried modifying the settings files to lower the CPU usage, it doesn't work. I've tried reinstalling the game, deleting the cache files, verifying integrity, etc. You name it it's been done. This is an issue with the game and not my PC.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Probably by playing on a PC with my specs
What happens when the bug occurs? Character movement & all other keyboard inputs become delayed, over a second at times but usually less however still incredibly noticeable & unplayable
What should be happening instead? The game should be responsive

I was playing 2042 fine for months at release, almost 100 hours in.

I put it down for a few months and came back around Feb of this year. It seems an update has made the game unplayable for myself and many others when researching this further.

I am running an OC'd i9700k and RTX 2080; not the greatest but I can run every other game I've tried fine on Low-High settings based on how optimized it is.

I can run 2042 at around 100 FPS on low settings. However, the keyboard input lag is unplayable. When I try to move there is a few millisecond to sometimes over a second delay in movement.  It appears the game is hogging 100% of my CPU. No matter how many applications I close it persists. I have tried 4 different keyboards from all different manufacturers, and the issues persist. So it is not my keyboard. Mouse input is fine and highly responsive.

I've read up on this and it seems every other person has the exact same CPU; the i9700k. I've tried modifying the settings files to lower the CPU usage, it doesn't work. I've tried reinstalling the game, deleting the cache files, verifying integrity, etc. You name it it's been done. This is an issue with the game and not my PC as I have not had any issue like this with the 100+ other games I have played

2 Replies

  • I deleted IGO64.dll in the game folder and that seemed to let me get a session in with no input lag. Not sure if it'll come back though. It was still bad on the newer Spearhead map in 128p conquest

  • FIX for my CPU running 100% and massive keyboard lag in BF2042.

    Read my fix below then watch the video so you don't have the issue i first had and thought the fix didn't work.

    https://www.youtube.com/watch?v=VSS_Unw0B_E

    I did notice that my Task Manager was not seeing my correct CPU core and thread numbers. (AMD 7700x at 4 core 8 threads insted of real 8 core 16 threads) So after following the above with no effect. 

    MY FIX for Task Manager and making the above work:

    I did the following fix,  Pressed: Win+R, & type in Open: field 'msconfig', go to 'Boot' tab, then 'Advanced Options' tab, and ensure you untick the 'Number of processors'. Re-boot PC.

    This then fixed the number of cores and threads available in Task Manager and allowed the above youtube fix to work for me.

    I also went into task manager 'Details'  & right clicked BF2042 and gave BF2042 High priority for CPU usage.

    I went from 100% maxed out to running 55-99% without any lag. Game playable again. (From CPU limited to 50% of cores and threads to 100% usage)

    I hope this helps someone, as i was so fustrated with the cpu at 100% and keyboard lag at 2-5+ seconds making the game un- playable.

    (Ryzen 7700x, RTX4090 on Window 11)

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