All your "floaty mouses", degraded display quality, 240hz feeling like 60hz etc. is 101% caused by harmonic distortion.
Posted: 07 Oct 2025, 03:22
After having those problems since 2022, trying each and every possible fix, nothing ever helped - but at other locations, everything works flawlessly. And all those input delays or display issues completely dissapear sometime after the midnight, it feels like a completely new computer compared to when used during the daytime, everything is smooth, better colours, better mouse movement in desktop, crisp windows animations etc.
So, I asked myself - the problem is obviously related to elecricity at this point, but what exactly? By using the logic - if the problem is time-related, and the PC works much better at night - it cannot be anything directly related to electrical installation in my apartment, so no grounding, neutral wire issues, or whatever.
And then, instead of keep on moving cables, buying ferrites, UPSs, or building new PCs indefinenty like other people, thinking that the problem would magically dissapear, I got into a direct contact with my power company instead. They tested the area and voila, the harmonic distortion levels are high as fuck, not just in my street but entire neighbourhood, and now it all makes sense - distortion is directly causing EMI on all electrical devices, along with voltage fluctuations.
At night, when majority of people stops using electrical devices, the power is more clear, less harmonics, less noise, less EMI, less fluctuations ----> perfectly working PC. But during the day, when the power grid is infected with shittons of harmonics, you get a shitty working PC. By the time the elecricity enters your house, it is already "damaged" BEYOND REPAIR, and this is why NONE of the UPSs, power conditioners, voltage stabilizers, EMI shields, whatever, will ever work.
Each year, the grid is globally more and more riddled with harmonics due to linear loads - especially solar panels and shit like that - and this is why more and more people are getting those problems, it will only get worse. No matter what you do, you will NOT fix those problems on your own, only the power company can fix it - if you are lucky (I am not). Basically, in my country, they don't give three shits about it - as long as you get electricity, you should be happy and don't complain - that's their logic, and we are talking about EU country, not some third-world stuff. To fix it, they would need to upgrade local transformators to put out more power, extra shield the grid for EMI, and re-direct problematic big consumers to their own grid - and all of this is expensive and time consuming, so they won't do it just because someone has PC problems.
Try to do a quick test at home - let your phone down to 10% battery, then charge it to 90%, and measure how much time does it need to charge - now try this with the same phone and charger somewhere else. If you have dirty electricity and harmonics, it will take much longer to charge, and the charger would be very hot afterwards - like not just warm, but hot to the point you could barely hold it.
I would say that 85% of us with those problems have harmonics distortion, and this is why no one has ever fully fixed this - because it is OUT OF OUR HANDS to fix it, only the Power company can do it. The remaining 15% people have some other problems, which produce similar symptoms - it could be software, hardware, even a modem, it could also be grounding (but highly unlikely - during my research I saw a lot of people saying it is a grounding problem, and yet no one proved and fixed it), but in the big majority of cases it is harmonic distortion.
TLDR: Don't waste your time and money with 1001 placebo "fixes", don't buy new stuff, don't build new PCs, you won't fix this problem on your own - no one has done it before, because it CANNOT be done - it is power companies fault.
So, I asked myself - the problem is obviously related to elecricity at this point, but what exactly? By using the logic - if the problem is time-related, and the PC works much better at night - it cannot be anything directly related to electrical installation in my apartment, so no grounding, neutral wire issues, or whatever.
And then, instead of keep on moving cables, buying ferrites, UPSs, or building new PCs indefinenty like other people, thinking that the problem would magically dissapear, I got into a direct contact with my power company instead. They tested the area and voila, the harmonic distortion levels are high as fuck, not just in my street but entire neighbourhood, and now it all makes sense - distortion is directly causing EMI on all electrical devices, along with voltage fluctuations.
At night, when majority of people stops using electrical devices, the power is more clear, less harmonics, less noise, less EMI, less fluctuations ----> perfectly working PC. But during the day, when the power grid is infected with shittons of harmonics, you get a shitty working PC. By the time the elecricity enters your house, it is already "damaged" BEYOND REPAIR, and this is why NONE of the UPSs, power conditioners, voltage stabilizers, EMI shields, whatever, will ever work.
Each year, the grid is globally more and more riddled with harmonics due to linear loads - especially solar panels and shit like that - and this is why more and more people are getting those problems, it will only get worse. No matter what you do, you will NOT fix those problems on your own, only the power company can fix it - if you are lucky (I am not). Basically, in my country, they don't give three shits about it - as long as you get electricity, you should be happy and don't complain - that's their logic, and we are talking about EU country, not some third-world stuff. To fix it, they would need to upgrade local transformators to put out more power, extra shield the grid for EMI, and re-direct problematic big consumers to their own grid - and all of this is expensive and time consuming, so they won't do it just because someone has PC problems.
Try to do a quick test at home - let your phone down to 10% battery, then charge it to 90%, and measure how much time does it need to charge - now try this with the same phone and charger somewhere else. If you have dirty electricity and harmonics, it will take much longer to charge, and the charger would be very hot afterwards - like not just warm, but hot to the point you could barely hold it.
I would say that 85% of us with those problems have harmonics distortion, and this is why no one has ever fully fixed this - because it is OUT OF OUR HANDS to fix it, only the Power company can do it. The remaining 15% people have some other problems, which produce similar symptoms - it could be software, hardware, even a modem, it could also be grounding (but highly unlikely - during my research I saw a lot of people saying it is a grounding problem, and yet no one proved and fixed it), but in the big majority of cases it is harmonic distortion.
TLDR: Don't waste your time and money with 1001 placebo "fixes", don't buy new stuff, don't build new PCs, you won't fix this problem on your own - no one has done it before, because it CANNOT be done - it is power companies fault.