Blur Busters Forums

akylen wrote: ↑

12 Feb 2026, 00:38

dervu wrote: ↑

11 Feb 2026, 06:57

akylen wrote: ↑

10 Feb 2026, 21:02

dervu wrote: ↑

10 Feb 2026, 07:05

I mean that it was removed and replaced by new equipment that was not causing the issue.

And do you know what in particular was doing the problem ?

VFD in combination with old elevator motor while being on TN-C. While new elevator has separate TN-S.

The symptom for your case was desync+input lag or just input lag caused by the elevator ?

Both.

dervu wrote: ↑

11 Feb 2026, 06:57

akylen wrote: ↑

10 Feb 2026, 21:02

dervu wrote: ↑

10 Feb 2026, 07:05

akylen wrote: ↑

09 Feb 2026, 19:58

Wdym source to be removed ? ty

I mean that it was removed and replaced by new equipment that was not causing the issue.

And do you know what in particular was doing the problem ?

VFD in combination with old elevator motor while being on TN-C. While new elevator has separate TN-S.

do u have grounding ! i mean a proper grounding the ground should be connected with neutral in main panel not isolated can u confirm for me

adelsa123 wrote: ↑

12 Feb 2026, 11:05

dervu wrote: ↑

11 Feb 2026, 06:57

akylen wrote: ↑

10 Feb 2026, 21:02

dervu wrote: ↑

10 Feb 2026, 07:05

I mean that it was removed and replaced by new equipment that was not causing the issue.

And do you know what in particular was doing the problem ?

VFD in combination with old elevator motor while being on TN-C. While new elevator has separate TN-S.

do u have grounding ! i mean a proper grounding the ground should be connected with neutral in main panel not isolated can u confirm for me

There is only phase and PEN (neutral combined with ground) wires coming into apartment. In apartment I have only neutral bonded to ground pin at sockets. PEN is only bonded to real ground at building main switchboard.

dervu wrote: ↑

12 Feb 2026, 11:29

adelsa123 wrote: ↑

12 Feb 2026, 11:05

dervu wrote: ↑

11 Feb 2026, 06:57

akylen wrote: ↑

10 Feb 2026, 21:02

And do you know what in particular was doing the problem ?

VFD in combination with old elevator motor while being on TN-C. While new elevator has separate TN-S.

do u have grounding ! i mean a proper grounding the ground should be connected with neutral in main panel not isolated can u confirm for me

There is only phase and PEN (neutral combined with ground) wires coming into apartment. In apartment I have only neutral bonded to ground pin at sockets. PEN is only bonded to real ground at building main switchboard.

so what ur describing is a TN-C system (common in older European/Asian apartments) where the Neutral and Ground are the same wire (PEN) until they reach the socket, where they are "bridged."
This is a worst-case scenario for input lag. Here is why 1. The "Dirty Neutral" Problem In your setup, the ground pin is connected directly to the neutral wire. Every bit of "electrical trash" from ur refrigerator, LED lights, and neighbor's appliances is flowing through that neutral wire. Because ur ground is "bonded at the socket," he is injecting that noise directly onto ur PC's chassis and motherboard. 2. Potential Difference (Voltage Drop)
In a PEN system, when a heavy appliance turns on, the voltage on the Neutral wire rises above zero. Since ur ground is tied to that neutral, ur ground is no longer 0V. It might jump to 2V or 3V. This creates the "floaty" mouse feel because the PC's reference point is constantly shaking.

adelsa123 wrote: ↑

12 Feb 2026, 22:46

dervu wrote: ↑

12 Feb 2026, 11:29

adelsa123 wrote: ↑

12 Feb 2026, 11:05

dervu wrote: ↑

11 Feb 2026, 06:57

VFD in combination with old elevator motor while being on TN-C. While new elevator has separate TN-S.

do u have grounding ! i mean a proper grounding the ground should be connected with neutral in main panel not isolated can u confirm for me

There is only phase and PEN (neutral combined with ground) wires coming into apartment. In apartment I have only neutral bonded to ground pin at sockets. PEN is only bonded to real ground at building main switchboard.

so what ur describing is a TN-C system (common in older European/Asian apartments) where the Neutral and Ground are the same wire (PEN) until they reach the socket, where they are "bridged."
This is a worst-case scenario for input lag. Here is why 1. The "Dirty Neutral" Problem In your setup, the ground pin is connected directly to the neutral wire. Every bit of "electrical trash" from ur refrigerator, LED lights, and neighbor's appliances is flowing through that neutral wire. Because ur ground is "bonded at the socket," he is injecting that noise directly onto ur PC's chassis and motherboard. 2. Potential Difference (Voltage Drop)
In a PEN system, when a heavy appliance turns on, the voltage on the Neutral wire rises above zero. Since ur ground is tied to that neutral, ur ground is no longer 0V. It might jump to 2V or 3V. This creates the "floaty" mouse feel because the PC's reference point is constantly shaking.

from what i understand u have fake grounding u should have 3 line going to ur outlet a dedicated neutral line and a phase and a dedicated ground wire ! all the way from ur Main Building Switchboard to ur socket not two going to ur outlet and then bond ur neutral to the ground pin !
Connecting Ground to Neutral at the socket is like putting a microphone next to a loud speaker. You are creating a loop of noise. You must run a separate wire back to the building's main ground point so the noise has a separate exit path.

The problem isnt TN-C by itself, because even newer electrical installations in big buildings with a lot of apartments use shared neutrals anyway, so its almost the same. And he said that the issue is fixed now. A good quality atx 3.1 psu SHOULD isolate your PC from noisy TN-C mains, thats the whole point of the psu. And by the way, the PC internal ground reference does not change or cause input lag the way you described, a good PSU isolates everything, so it doesn't matter if the PEN noise changes neutral / ground by 2-3V really. See laptops, they work perfectly even with no ground reference at all.

The problem in TN-C is high impendance of the wiring, not just noisy PEN connector (which is easily fixed by a high-quality PSU, meanwhile impendance is hard or almost impossible to fix without full rewiring). It cannot be fully fixed, but you can lower your problems so it would feel almost normal.

-Use a high quality PSU (ATX 3.1, dc-to-dc standard, gold+ are a must, and check for the models with low ripple and high uptime)
-Use power strips with 1.5mm thick cables (not cheap 0.75mm) and short cable (2 meters max). Do NOT coil the excess cable as this just increases impendance, and DO NOT use surge protectors with RF/EM filters (they have y capacitors, which would just increase the impendance even more on TN-C as there is no separate ground).
-Also use short power cable from PC PSU to to the strip - only 0.5 m if possible
-Same with monitor - if you have external power brick with monitor, use a short cable from the brick to the power strip (1 m max). As you have realised by now, short power cables = lower impendance.
-Use quality display port cables, not some cheap ones
-Do NOT use shielded ethernet cable, use a normal regular cat 5 or cat 6 cables
-Keep PC away from the wall as much as possible, at least 50 cm
-Make sure that the power cables (PC, monitor, modem...) are not running parallel to each other. They can touch each other at one point, but they should not run next to each other for the entire lenght as this would increase impendance.
-Also plug everything into one power strip, do not mix strips or sockets as this would increase impendance and create ground loops
-Do not bother with ferrite chokes or stuff like that, this won't do anything


I also have a TN-C, and managed to make things better by doing all of this. My mouse feeling improved a lot, but the feeling of 60hz on a 150hz display and choppy animations are still there, but only when the electricity usage is high, like when people in the building are cooking etc., but after 6-7 PM it is pretty much perfect.

htalloush wrote: ↑

18 Jan 2026, 17:33

I think this started happening when they released the 4K polling update for the Superlight 2, I can vividly remember how smooth this mouse was when I first used it, before all the updates, though there is a more recent update claiming to fix an "lod issue", that still didn't fix my issues,

The issues introduced were micro stuttering and hitching while aiming and some kind of mouse acceleration, this occurs on any polling rate or DPI, though it seems to decrease with higher polling rate, the "acceleration" especially feels horrible and happens only with GPX 2.

The problem is that after unplugging the GPX 2 wireless dongle, this hitching issue persists even with other mice afterwards, I've always made sure any remnants are uninstalled that has to do with Logitech while using other mice, that includes removing any drivers or software or services, using Autoruns and DriverStoreExplorer, so as to confirm if it had anything to do with it and it didn't.

and before anyone says anything, I don't use GHUB as I carefully try not to introduce any bloatware, I use only Onboard Memory Manager, which I guess lives in Temp folder which I can clear easily,

The only solution was by following this thread, I flashed the BIOS firmware and then imported my BIOS config again and there's no more issues now, I have no idea why this occurs but it is repeatable if I plug the GPX 2 wireless dongle,

I don't think I'll plug this GPX 2 garbage mouse into any computer again unless I hate that person and want to ruin their aiming, this will head straight to the bin, I advise anyone to buy a clone which if they wanted to use this shape again, other Logitech mice like my G305 works great and tracks flawlessly on 1000 Hz.

still working?

amorou wrote: ↑

23 Apr 2025, 09:48

Is this only about floaty mouse?

Did you have desktop-everyday tasks laggy/slow , high stable fps but lagging , erratic performance too?

Heyho, I suffered from this for a long time too. Even had it over multiple PC´s like a lot of people seem to. I always tried to dedicate some hours of my week to find out why it definetly feels so off when the benchmarks etc. show nothing wrong. Long Story short: FOR ME and I put that in all Caps because I ofcourse cant confirm that this is the same for all of you. But It seemed to be a missing Device actually 2 Devices on my Intel setup. I turned on Intel dynamic tuning technology in Bios and noticed that i had 2 Devices in Device Manager with yellow triangles. They definetly where not there before so i am very sure that it should be that Bios Setting [Turn IOAPIC on if not already i dont actually know if that makes a driffrence tho]. Then I tried to find drivers for the two Devices: Recoursehub-proxyDevice and PCI [something controller dont remember precisly]. I found a wierd Intel Laptop package that seemed to have the Drivers I needed Inside. Its a Huge Zip with a lot of stuff you dont need like Thunderbolt drivers and stuff like that. Now i for a lack of a better Plan just tried to Install all of the drivers in that Package, so if you want you can try that, but what worked specificly were the IPF package and the ISH Package. They seemed to have the Drivers that my two Devices needed. I restarted and voila. For me this definetly fixed the Problem completely. Now to the explaining part if you care or maybe have AMD with the same problem. Now while I cant provide with info on how to fix this on an AMD system. I am very positive that this Problem has to do with PCIE pipelines and Interrupting so If you lower your Gaming Mouse to 500hz and it feels better, Or you disconnect Audio Devices or Other HID Input Devices, Or you tab out -> tab in and everything feels smooth for just a few seconds. You can be very sure that you have the same problem and it has something to do with your System not beeing able to correctly handle Interrupts. Really hope this helps I cannot Link the Intel Package because BB doesnt let me but ill just tell you how its called: Provides Intel® NUC 12 Compute Element Drivers for Intel® NUC P14E Laptop Element [Pick non vPro Version]: (should be easily findable on Google) be sure to only download from official Intel Website.

None of this would explain why the PC would suddenly work perfectly fine late at night, so you are just in a minority of people which actually have hardware probs and not electricity issues...if the problem is BIOS or Windows, it would be constantly the same 24/7, and not dependant on the time of the day or even a big load (like oven or clothing iron) interfering with performance.

The solution is posted by someone above - everything works fine after they removed the faulty elevator...it's alway the same cause - some faulty device is injecting harmonics into neutral wires, and this is even much worse on TN-C...not just elevator, it could also be faulty water pump, heating pump, lights in the hallway or something else in the building. Or it's simply your neihgbour with his TV, computer, boiler, fridge etc...the shared neutrals are almost always connected vertically, so its someone directly above you or directly below you causing problems, while the apartments to the left / right of you might work perfectly fine.

so i was installing amd drivers for cpu and right when i got the notification from windows saying "windows getting devices ready" my mouse literally felt amazing until the install finished and went back to shit this was before i even reboot btw for the chipset drivers can anyone hook onto this specific situation and figure something out???