Razer Synapse 4

Hi Razer team and fellow Insiders,I'd like to share a detailed finding about a long-standing issue with Razer 7.1 Surround Sound, in the hope it helps the software team fix it.SYMPTOMAfter 6–10 hours of headset use with 7.1 Surround enabled, audio starts crackling and then stops completely on every output. The usual workaround is to repair/restart 7.1 Surround in Synapse.ROOT CAUSE (what I measured)The Windows audio engine process (audiodg.exe) keeps accumulating handles until it hits the Windows per-process handle limit (~16.7 million). At that point it can no longer open resources and audio dies.- Failure #1: audiodg.exe at 16,711,677 handles and 12.4 GB private memory after 12.2 h of uptime- Failure #2: audiodg.exe at exactly 16,711,677 handles and 12.4 GB private memory after 9.7 h- Growth rate today: 2.43 million handles after only 1.45 h (~1.6–1.7 million/hour), which reaches the limit in ~10 h- A healthy audiodg.exe uses ~500 handles and ~17 MB- Restarting only the Razer surroun

The custom equalizer isn't working, no matter how I configure it.I’ve reinstalled the app and removed the drivers—both manually and using your Razer driver removal utility.THX isn't working either; toggling the slider has no effect. I’ve tried every setting in the audio properties.Headset: Kraken V4 ProSynapse 4

## SummaryWhen recording a macro with Mouse Movement Tracking set to "Relative", Synapse 4 does NOT save it as relative. The exported XML shows MouseMoveType=foreground and mmtSetting=2 instead of relative / mmtSetting=3. On playback, the cursor instantly teleports to the top-left corner of the screen (0,0) instead of moving relatively from its current position. This makes mouse movement macros completely unusable.## Environment- Synapse Version: Synapse 4 (latest available as of September 2026)- OS: Windows, display scaling at 100%- Synapse running as: Administrator- Screen Resolution: 1920x1080, single monitor- Mouse: Razer (connected directly to USB, no hub)## Steps to Reproduce1. Open Razer Synapse 4 → Go to the Macro module.2. Create a new macro.3. Click the dropdown arrow next to the RECORD button and enable Mouse Movement Tracking → select "Relative".4. Press RECORD, physically move the mouse downward in a straight line for about 1 second, then stop recording.5. The macro editor

I have a Razer Tartarus V2 and I have been using the keymapping feature of Razer Synapse for quite some time now. However due to the recent updates to Synapse 4, it no longer works. I am given the message “mappings require razer synapse” and hence no longer works.Edit: Upon further tinkering, it seems as if its just the D-Pad that just doesn’t work anymore? 

The latest Synapse update (I had one yesterday I think) disabled the automatic profile switch for some applications. The profiles do not switch automatically for Google Chrome or VSCode, but they do work for others like Visual Studio or some games.I tried everything that was suggested in some support threads regarding the faulty profiles switch (there are lots of them apparently, meaning Synapse is quite buggy).Razer, please debug the latest release or give me a link to an older version of Synapse 4.

Around a week ago I upgraded to synapse 4, and with it came a butt load of problems. The keyboard keybinds keep reverting to the original. I have unplugged, restarted pc, uninstalled and reinstalled, tried changing the art software shortcuts to the original keybinds but not all of them work (caps lock cant be used as a shortcut). Not to mention sometimes the keys stop working entirely. I usually unplug and plug back in and it may work for a very short time after, about 2-10 mins usually.I understand my tartarus pro is old and I *could* consider replacement, but how do I know if it will work with a new one? It seems to be the software not the hardware.Everything was working perfectly before update.Please help me if you can, I have gotten extremely comfortable with this over the years and trying just a normal keyboard isn’t the same and really slows me down. I’m a busy artist with lots of work to do 

I tested.## SummaryI have identified a fully reproducible regression in Synapse 4 affecting both the Tartarus V2 and Tartarus Pro.When the D-Pad is configured as **8-Way**, pressing any D-Pad direction while **HyperShift** is active causes the D-Pad to ignore its configured bindings and instead generate the default Arrow Key inputs.This issue does **not** occur when the D-Pad is configured as **4-Way**.The exact same hardware and workflow worked correctly in Synapse 3.---## Environment* Windows 11* Synapse Version: **4.0. [removed by moderator] *** Guest Mode (not signed in to a Razer account)* Clean installation using the official Razer Driver Clean-up Tool* Default profile only (no imported or cloud-synchronized profiles)Devices tested:* Tartarus V2* Tartarus ProThe issue is reproducible on both devices.---## Steps to Reproduce1. Install Synapse 4.2. Launch Synapse in Guest Mode.3. Configure the D-Pad as **8-Way**.4. Set **every D-Pad direction** on both the Normal layer and the Hype

I downloaded Razer Synapse 4 from the official Razer website. It only opens right after the installation succeeds. Once I finish adjusting the settings and close the window, I can’t open it again.Also, it isn’t running in the background on my computer. The only way to get back in is to re-download it.

did a clean reinstall with cleaner still the samei have to restart synapse to detect my devices

After recently synapse 4 update on Nov 14, the left/right sound direction is reversed when thx spatial audio is enabled on my blackshark v2. If I switch to thx stereo, the left/right sound direction is correct. I have tried to uninstall synapse 4 and restart pc and reinstall synapse 4, but the the left/right sound direction reversed issue is still there. What should I do to fix this? Is anybody has the same issue?

Razer Huntsman V3 HE TKL – Keys Sometimes Stay Registered After Being ReleasedHi everyone,I received my Razer Huntsman V3 HE Magnetic Tenkeyless 8KHz today and updated it to the latest firmware/software immediately.I’m experiencing a strange input issue, especially in Counter-Strike 2.Sometimes, when using the W, A, S, D or Ctrl keys, the keyboard seems to register a key for a very brief moment after I have already released it.For example, when I press Ctrl to crouch and then release the key, sometimes my character seems to crouch for a tiny fraction of a second longer, as if the Ctrl key is still being registered even though I have already released it.I also sometimes get a similar feeling with the A and D keys, where it seems like the keyboard briefly registers an input that I’m not actually making, or almost as if A and D are being registered at the same time.It happens randomly, so it’s difficult to reproduce consistently, but it is noticeable during gameplay.The keyboard is brand

I was using my Tartarus V2 just fine. I was trying to get some new keybinds going to play Stalker. After being away from the PC for a while, I wanted to play Tarkov, but my keybinds stopped working. I looked at Synapse, but Synapse is telling me that Synapse needs to run in order for the keybinds to work . . . . . IT IS RUNNING. WTF am I'm supposed to do I play almost every serious game with the V2. I tried reinstalling. I tried everything I could imagine, but I can't get it to work anymore. I need help ASAP, please

I get a problem like:My Razer Huntsman V3 HE Magnetic Tenkeyless 8KHz keyboard after updating to the latest firmware. Since the update, the keyboard frequently stops registering key inputs every 1–2 hours at a time, even though the lights remain on and the device appears connected. This has significantly disrupted my work and gaming experience.I kindly request that Razer provide a solution to this issue, or guidance on how to safely rollback/downgrade the firmware to a stable version.what should I do, I just buy this for a week.

sooo i tried like 15 times re installing it and every possible way but this just keeps coming up and i'm tired now been trying for more than 3 hours and nothing works, if anyone knows a way to fix this please help me, i don't want to get a new mouse.. it happened after i re installed my windows 11 and after that i have no idea why it's not working. any help please ? 

I’m experiencing an issue with my BlackShark V3 Pro after performing a firmware update through Razer Synapse.After the update:The USB dongle no longer lights up The dongle is not detected by my PC There is no audio when using wireless modeHowever:The headset still works normally when connected via USB (wired mode)I have already tried the following:Using different USB ports Restarting my PC Reinstalling Razer Synapse Attempting to re-pair the headsetThe issue started immediately after the firmware update, and it seems the dongle may have failed during the process.What can I do?Thank you.

Hi Razer team,I found a power-management issue with Synapse 4 and the Razer Laptop Cooling Pad on my Blade 16 2023 (RZ09-0483, RTX 4090).When the Cooling Pad is active, RzDLLService_v1.0.29.0.exe continuously loads NVIDIA nvml.dll.tasklist /m nvml.dll consistently identifies RzDLLService as the NVML client.In Optimus mode, even with:NVIDIA display inactive GPU utilization at 0% no application using the dGPUSynapse continuously reports the RTX 4090 active, and spot checks show:P01815 MHz core9001 MHz memory~28–34 WMy Cooling Pad fan curve is CPU-based, so continuous NVIDIA GPU telemetry should not be required.I tested multiple NVIDIA drivers and also updated Intel IPF, DTT and MEI, with no change.Could Synapse stop continuously polling NVML/NVAPI when a CPU-based Cooling Pad curve is selected, so the dGPU can return to its normal low-power state?I can provide additional logs and a CPU-only HID proof-of-concept that controls the Cooling Pad without NVML/NVAPI if useful.Thanks. 

Hi everyone,I’m posting this because I would like to know if anyone else is experiencing the same issue with Razer Synapse 4 and the Razer Kraken V3 Pro. For almost a year, I have been dealing with an audio-related issue on my Kraken V3 Pro. After trying many possible fixes, I have found that the problem only happens when Razer Synapse is installed and running.When Synapse is removed or you disable audio signal enhancements ( video example, at the end ), the issue disappears. The main problem is that volume changes are delayed across the whole system.When I lower or increase the volume, the actual audio level does not change immediately. Instead, the volume change is applied after around 1–4 seconds.This happens when changing volume through:Windows volume slider Spotify volume slider Other app volume controlsThe audio itself is not delayed. Only the volume adjustment is delayed.This becomes very annoying and sometimes painful because when a notification plays or a new audio source star

For a while now Razer Synapse 4 was working great and I had no issues with it but today I opened it and it started to crash over and over a few seconds after opening - at one point it looked like it was going to try to install an update but then it said installation failed and crashed. I tried restarting my laptop and also uninstalling synapse and going to the website to download the latest version of the installer and reinstalling it but this also failed. I am running on a razer blade 18 (2024) with rtx4090 and intel core i9 14900hx on windows 11 latest udate

Hardware: Razer DeathAdder V3 (Wired)Software: Razer Synapse 4 (Version 4.0.86)OS: Windows 11Game: Sniper Elite 5 (Steam)​The Issue:I use an 8000Hz polling rate for my desktop, but I need to switch to 1000Hz for Sniper Elite 5 to prevent severe engine stuttering and FPS drops. I set up an auto-profile switch, but it never triggers.​The Cause:Synapse 4 forces the game profile to link strictly to the main executable (sniper5_dx12.exe). However, the game launches through Easy Anti-Cheat, making start_protected_game.exe the actual active window. Synapse 4 overrides any manual attempt to link the profile to the EAC executable, forcing it back to the direct game file. Because Synapse cannot track the game's active state through the EAC wrapper, the profile never switches.​Proof / Troubleshooting done:I completely disabled Easy Anti-Cheat and launched the game directly. Once EAC was disabled, the Synapse 4 auto-profile switching worked perfectly and instantly. This confirms 100% that the bug

Currently using the Huntsman v3 Pro TKL 8K model.Been setting my actuation for the various profiles but I tend to realise the actuation points weren’t hitting (i.e. hitting too soon). Hence I did some test and the results were that Synapse DOES NOT save the actuation.Vimeo video here: https://vimeo.com/ [removed by moderator] ?share=copy&fl=sv&fe=ci

Hi, i am unable to disable auto-updates. In the old razer snypase, there was a setting for me to disable this, however, in this new razer synapse 4, I am unable to do so. When I open the settings, there is no option for me to disable auto updates. I have attached a screenshot below  

Dear Razer Support Team,I am writing to formally complain about the current software limitations and unresolved issues affecting the Razer Kraken V4 Pro.I purchased this headset expecting a premium product with proper software support and full functionality. However, the experience has been extremely disappointing.The issue is not simply a hardware problem. The headset itself works, but the Razer Synapse software does not provide the same level of functionality and flexibility that users previously had with the Kraken V3 Pro.One of the major issues is the Enhancements functionality. With the V3 Pro, users were able to use multiple enhancements/features together, while the V4 Pro is currently restricted in a way that significantly limits the functionality of the headset.This is especially frustrating because the V4 Pro is supposed to be a newer and more expensive premium product. Customers should not have to pay more money only to receive fewer software capabilities than an older model.

Support Team,I am contacting you regarding a serious issue with my Razer Kraken V3 Pro.The battery percentage shown in Razer Synapse is incorrect and drops extremely quickly. The battery level can decrease by approximately 10% every few minutes, even though the headset is still working normally.I have already tried restarting my PC and restarting Synapse, but the problem continues. After restarting the computer and opening Synapse again, the battery percentage may suddenly return to a much higher level, which strongly suggests that the battery reporting in the software is inaccurate.This makes it impossible to rely on the battery percentage displayed by Synapse and gives the impression that the headset is losing battery much faster than it actually is.Please investigate this as a Synapse/software battery reporting issue and not simply as a hardware battery problem.I would like to know:Is this a known issue with the Kraken V3 Pro? Is Razer currently working on a fix? Is a Synapse update

Feature Request: A Lightweight 8K Wired DeathAdder with 4 Side Buttons, 4-Way Tilt, and Integrated GripBody:As a long-time Razer fan, I absolute love the current wired DeathAdder. The raw performance of the native 8K Hz HyperPolling is incredible, but I find myself needing just a bit more utility for modern gaming and productivity without jumping to a heavy MMO mouse.I would love to propose a new variant of the wired 8K DeathAdder that includes:Four (4) Side Buttons: Retaining the ergonomic thumb rest layout but splitting or adding two additional, easily reachable side buttons. 4-Way Tilt Scroll Wheel: Adding left and right tilt clicks to the scroll wheel for extra macro assignments. Small Integrated Rubber Grip Base: A subtle, built-in rubber zone specifically where the thumb rests for maximum control during fast swipes. Strict Weight Optimization: Designing these extra 2 buttons and tilt wheel mechanisms in a way that keeps the mouse ultra-lightweight, ensuring it doesn't become heav

Related topic: