# Inconsistent input feel and lagometer spikes (green+yellow) - day-by-day variation with no reproducible cause **URL:** \ **Category:** CoD4x | Client Support\ **Created:** [June 8, 2026, 10:06pm UTC](https://cod4x.ovh/t/inconsistent-input-feel-and-lagometer-spikes-green-yellow-day-by-day-variation-with-no-reproducible-cause/5530 "2026-06-08T22:06:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![clockworkbird](https://cod4x.ovh/letter_avatar_proxy/v4/letter/c/8797f3/32.png) [@clockworkbird](https://cod4x.ovh/u/clockworkbird)\ **Post date:** [June 8, 2026, 10:06pm UTC](https://cod4x.ovh/t/inconsistent-input-feel-and-lagometer-spikes-green-yellow-day-by-day-variation-with-no-reproducible-cause/5530/1 "2026-06-08T22:06:33Z")
## SYSTEM SPECIFICATIONS OS: Windows 11 Home 25H2 (Build 26200.8524) CPU: AMD Ryzen 5 5500 GPU: NVIDIA GeForce RTX 3050 6GB (Driver 566.36) RAM: 16GB DDR4 3200MHz Motherboard: MSI A520M-A PRO Monitor: BenQ EX240N 165Hz (HDMI) Mouse: Logitech G203 250Hz polling COD4x: Client 21.3 / Server 21.3 ## GAME SETTINGS com\_maxfps: 125 or 250 r\_fullscreen: 1 r\_displayRefresh: 165 Hz cl\_maxpackets: 125 or 100 snaps: 30 or 20 rate: 100000 or 25000 sv\_fps: 20 (server-side, seems always fixed) ## PROBLEM DESCRIPTION For over 6 months, I have been experiencing day-by-day variation in input feel that I cannot reproduce or resolve consistently and concurrent green and yellow spikes (red spikes some times, but not as usual as yellow/green ones) in lagometer (please see attached picture. I was trying to post more pictures but it is not allowed as I am a new user). ``` ![Screenshot 2026-06-08 224749|141x157](upload://irD23NA7leDTQHWRossILzHYV6h.png) ``` On good days: - Mouse input and character movement feel perfectly synchronized (“smooth”) - Feewer green or yellow spikes - I can react to enemies normally and have competitive performance On bad days: - There is a noticeable delay (per my subjective personal feeling, I have not been able to quantify this) between mouse input and character movement - Enemies appear and kill me instantly before I can react (this is very obvious when I play on Shipment or Killhouse: on good days there is a bit moment before I respawn and move. On bad days, I get killed immediately I respawn without a chance to move. On same servers) - Many (10-20) yellow and green spikes on a single game This occurs across multiple servers (NVTS, EBC Promod, and others), ruling out a single server as the cause. Tested on two different PCs and two different ISPs - same symptom. Only common factors I can think of are (1) both PC are Windows 11, (2) with the same mouse and (3) in the same region (20km distance). ## LAGOMETER OBSERVATIONS On bad days, the lagometer shows frequent simultaneous green and yellow spikes. - Green spike alone: occurs on both good and bad days - Green + yellow simultaneous: occurs predominantly on bad days - Yellow spike alone: never observed Yellow/green spikse appear to happen often for the following cases, but not exclusive (can happen randomly as well) - when I shoot an enemy - when I encoutner an enemy - when I throow a flag or flash - when I get killed by killstreak WHAT HAS BEEN INVESTIGATED AND RULED OUT IN MY OPINION The following have been tested and confirmed to have no consistent effect: Hardware & drivers: - Two different PCs - Two different ISPs - Multiple mouse polling rates (125Hz / 250Hz / 1000Hz) - NVIDIA driver versions (multiple tested) - HDMI vs configuration changes Windows & system: - Timer resolution (confirmed 1.000ms during COD4, normal behavior) - GlobalTimerResolutionRequests registry setting - Dynamic Thread Priority Boost (disabled via registry) - Windows Defender real-time monitoring (disabled via PowerShell) - BIOS: Global C-State disabled, ASPM disabled - Process priority: iw3mp.exe set to High via Process Lasso - CPU affinity: nvlddmkm.sys DPC pinned to CPU11 via registry Game settings: - Various com\_maxfps values (125, 250, 333, 0) - Various cl\_maxpackets values (30, 60, 90, 100, 125) - Various rate values (10000, 25000, 100000) - Various snaps values (20, 30, 40) - DXVK / d3d9.dll - Fullscreen optimization disabled - r\_fullscreen 1 Frame timing (measured via PresentMon): - On good days: avg 8.000ms, std dev ~0.928ms, hard stalls ~0.05/min - On bad days: avg 8.000ms, std dev ~1.099ms, hard stalls ~0.62/min - The average frametime is identical; only consistency varies - Hard stall frequency correlates with subjective feel - RTSS framerate limiter worsened hard stalls (1.47/min) - abandoned System diagnostics: - LatencyMon: nvlddmkm.sys highest DPC 311-357μs, 0-8 events \>500μs - No TDR events (Event ID 4101) in Windows Event Log - No NVIDIA driver errors in Event Log - WHEA errors: 0 - PCIe error counters: Recovery Count 6 (stable, non-fatal) ## KEY REMAINING OBSERVATIONS 1. Local server (127.0.0.1) always feels smooth - rules out PC hardware 2. Green+yellow simultaneous spikes suggest snapshot loss, not pure frame drops 3. The problem is non-reproducible: same settings produce good and bad sessions 4. No measurable difference in PC-side metrics between good and bad days that fully explains the subjective experience 5. COD4x version 21.3 on both client and server (21.2 showed same symptoms) ## QUESTIONS FOR THE COMMUNITY / DEVELOPERS 1. Is there a known issue in COD4x 21.3 that could cause intermittent snapshot delivery failures or client-server synchronization problems? 2. Could the combination of sv\_fps 20 / cl\_maxpackets 125 / com\_maxfps 125 cause periodic packet handling issues in the COD4x client? (Recommended optimal values for sv\_fps 20 servers would be appreciated.) 3. Is there any COD4x-specific logging or diagnostic tool that could capture the exact state during a bad session beyond what PresentMon and LatencyMon provide? 4. Has anyone else reported day-by-day variation in input feel that cannot be explained by standard PC or network diagnostics? I have done all thins I can think of with help from AIs (GEMINI and Claude), but I have a lay-man for PC or PC gaming. Any insight from the COD4x development team or experienced community members would be greatly appreciated. I am happy to provide additional data, logs, or test specific configurations on request. Thank you. ---
**Author:** ![zaki7](https://cod4x.ovh/letter_avatar_proxy/v4/letter/z/c0e974/32.png) [@zaki7](https://cod4x.ovh/u/zaki7)\ **Post date:** [June 12, 2026, 2:00pm UTC](https://cod4x.ovh/t/inconsistent-input-feel-and-lagometer-spikes-green-yellow-day-by-day-variation-with-no-reproducible-cause/5530/2 "2026-06-12T14:00:12Z")
Try pinning r\_gpusync to 0, it resets on every launch and try playing on [berrytrials.me](http://berrytrials.me) server, and also default config just with cl\_packetdup 2 or 3 ---
**Author:** ![r4f1k1\_04906](https://cod4x.ovh/letter_avatar_proxy/v4/letter/r/b487fb/32.png) [@r4f1k1\_04906](https://cod4x.ovh/u/r4f1k1_04906)\ **Post date:** [September 5, 2026, 6:03am UTC](https://cod4x.ovh/t/inconsistent-input-feel-and-lagometer-spikes-green-yellow-day-by-day-variation-with-no-reproducible-cause/5530/3 "2026-09-05T06:03:49Z")
download and try CoD4x Version 21.5 [download link: [CODTV.EU](https://codtv.eu/modding/assets/cod4x-codtv-215-client) ] which is basically a hotfix for players, who got problems with Mouse Input Lag … After installing it, open your in-game console (the ^ button on your Keyboard) and type this and press enter: /seta raw\_input “1” /seta in\_lagged “0”