@si_edgey OK. Still it's very strange for me that the problem appears right now. I spent many hours using different PCs with different configuration (I'm IT guy) and never had any issues of this type :/
Headache and eyes strain with new 240Hz monitor
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Hi Peter,
Just to confirm, everything is fine when you stop using the new monitor? so the problem appears to just be the monitor?
If that is the case, I would suspect LCD inversion to be a potential cause of your problem. You might read about it here http://www.techmind.org/lcd/
In short, an LCD pixel's voltage has to invert every frame to prevent degradation. This creates a flickering effect. All LCD panels will do this, even if they are marketed as flicker free. The way inversion is implemented and perceived will vary between monitors and LCD technologies. However, a 240hz monitor will flicker through inversion at 4x the frequency of a 60hz monitor. My suspicion is that this higher frequency flicker is giving you a migraine.
Temporal dithering is another potential cause, your GPU will alter its output every frame even if displaying a static image to improve colour quality. Similarly to inversion, using a 240hz monitor will dither 4x faster than a 60hz, potentially making migraines more likely.
If possible, setting your 240hz monitor to a 60hz setting will resolve any problems caused by faster dithering. It might solve the inversion problem, but I am not sure if setting it to a lower framerate will actually change how inversion is implemented - it may continue inverting at 240hz regardless of the framerate you set it to.
Further assuming you have a migraine, it may take you several days to feel 100% again.
Just chiming in as I had the exact same problem with a Dell monitor. S2716DG Rev. A09. Reading this thread turned me on to the fact that it could be pixel inversion or, coil whine. But yeah... I feel ya. It sits in the corner collecting dust now, which is too bad, because it was a great gaming monitor.
I found something interesting about Covid-19 and headaches and light sensitivity. Check this out:
https://www.theraspecs.com/blog/covid-19-coronavirus-headaches-light-sensitivity/
FYI
In my workplace almost every person was going through Covid19 or something similiar. The only person who wasn't sick was me. Maybe my symptoms are the result of having light version of C19? Because it was so strange that my problem occured from day to day. Like something trigger that.
Of course it is only hypothesis, I will investigate other solutions in near time. For now my eyes have to rest.
After recovering from Covid I had visual problems, mostly unrelated to screen tolerance. It did worsen my screen tolerance noticeably, making me more prone to migraines from LCDs. However, I had noticed this trend prior to contracting Covid, but the infection may have accelerated it. I was very sick with Covid for 6 weeks.
Its quite unpleasant for sure! I'm very interested in what the research on the long term effects will be. After covid I found I had the following new problems: terrible anxiety (fortunately fading), joint pain (might be getting better but hard to tell), visual distortions (which got a lot worse after consuming hallucinogens), and a reduced tolerance to LCDs (but as I say that was getting worse before covid), and fatigue (fortinately relieved with caffeine and sugar).
Based on these symptoms, the best explanation I can come up with is that covid has triggered an autoimmune reaction. Where my immune system is attacking is serotonin receptors, receptor 5ht-2a best fits the symptoms. It is associated with migraines, visual distortions, and joint pain.
Getting back on topic
I've increasingly found that my food allergies are worsening my tolerance to LCDs. Not saying that's causing your problem, but I am saying you might need to think outside the box. If you can't find any help with the suggestions already made, it might be worth keeping a log of your screen tolerance to see if there is any fluctuations. If there is, logging your daily activities might yield some correlation.
Lauda89
I'm from italy too! Is there any way to keep in contact? I dont know how to send a private message
Hi again, just wanna to inform you that I rolled back 2004 update to 1909. I also installed older nVidia drivers. Nothing's changed. There is last option - rearrangement my room to previous state (I changed some things like I put UPS under the desk, near my feet and some minor changes of monitor placement). If that doesn't help I will give up. This will mean that my body has stopped dealing with this monitor or that it is a symptom of a disease. No idea.
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CorvusCorax In my experience IT can take over a week for the symptoms to dissipate, so perhaps give it a bit of time if you're absolutely sure you're back to the old setup and drivers. There's also a stress element - in the same way that a person allergic to pollen may develop a reaction when you produce a bunch of plastic flowers, I'm certain that our bodies can trigger headaches and migraines when working on machines that have caused you problems in the past. But it does fade with time, for me at least.
I discovered (with an AM radio) that the switching power supplies in my UPS and monitor bricks and desk speakers were giving off serious radio frequency interference. i switched to headphones & moved things away (to another circuit) with extension cords. not a complete fix, but definitely makes a difference.
CorvusCorax Any updates on your situation? We are on the same boat and I'm a Pole as well, so if you found any helpful specialist in Poland, please let me know.
Dominic For now I'm back to my old monitor (Dell 2209WA), it's OK. Not great, but better. I think my problem comes from few things. Which one trigger the symptoms IDK, but I'm sure that is linked to my neck. For now I try to exercise the spine and my neck. I see some differences for better. I will let you know if something change. If you are from Poland you can write PM to me.
CorvusCorax I feel you so much man. I also thought it was neck, or eyes, or whatever. You have to consider that all these are constants, you are used to this kind of posture/habits. But buying a new monitor and immediately getting strained, well this changes the whole equation here, it's obvious. Happened to me with S2721DGF, got nauseating migraine, which ended up making me photophobic and phonophobic... Couldn't look at any light source for 3 days straight. You should know you are not crazy, it' just something we haven't discovered yet. It's there I'm sure about that. The pixel inversion thing is interesting idea, but I got terrible inversion on my screen (BENQ GL2460), and have 6bit + FRC always on. Also got 60hz with terrible ghosting, yet, I feel just fine, can sit on this monitor for 8 hours straight. I don't know... maybe it's the brain that is used to this shitty monitor, and it's hard to adapt to something better...
Hi Guys, i've tried 4 new monitors and i had problems with all of them. However, I can work with my old syncmaster 12 hours without any problem. I know some people improve their sight changing drivers, room light, etc but I have the suspicion that the problem it's the new monitor hard.
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Try running them on 1080p instead of 1440p. For some reason that has resolved eyestrain on several high DPI monitors, to run that at lower than native res, notable my BenQ EW3270U and EW3280U.. And it's much better than just increasing scaling. I think there's more to it than "things are bigger". Some shenanigans get disabled on some monitors when run at lower than native.
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woww, I'm sooo happy that I found this post and this forum
I'm from tunisia, 20 years old last summer I spent most of it working even in the curfew
then before a month of school return I took some rest and bought a new laptop wish is Aspire 3 with I3-8130U CPU,
4GB of RAM 2400MHz and I added other 4GB to it, 1T HDD, MX130 nvidia graphic card and a 15.6" HD (13660 x 768 px) screen. then after the new laptop I bought new glasses (crizal prevencia) that are blue and green light blocking I guess I'm not sure about that but they're supposed to be like that and they're expensive. anyway in period we were in curfew and I've been looked in my house + I'm a computer science student and computer science is life to me. so in that period I had a lot of struggling times with my head pain, nausea, dizziness and neck pain and a lottt of depression and pressure
I didn't think of the laptop nor my glasses cuz they were new, my gf told me it's just because u're not used to be locked at home and u're spending too many hours on screens, so I tried to do not use my laptop for a day but it didn't make any deffirence (as I read above It'll take take several days to get back to normal. so yeah makes sence it doesn't work ) but I didn't know about that at that time so I just keept using it and suffering from dizziness and sleepless nights (it effected my sleep too). from that time I searched a lot and a lot about it and I found that posture can cuz all of that so I started trainning and working on it cuz I'm tall and I don't have a good posture and had a lot of pain neck. but nth worked and I literally done a lot of more things like I've done all the kind of stuff I can do. it literally screwed up my whole life, I gave up on everything and stayed like that in bed for days cuz I couldn't find any solution I did blood tests and I found nth, I did and MRI test on my head same I found nth. until someone told me that he had the same problem before with his glasses so I tested them and I tested my eyes again and found nth everything is normal. today 24/01/2021 I've been searching about my glasses types (CRIZAL PREVENCIA) and I found out that some people but only a little few of them had eye problems from it when using screens, so I said maybe that's it but I'm not sure yet.
sometimes I go at my friends house and we play with his ps4 that is plugged with a big TV. so everytime when I go and play with him I get the strongest dizziness and nausea, so everytime I go to him I end up telling him that I feel dizzy and I go back home.
this problem costed me a lot of damage mentally and physically, I've been living with disorders, forgetfulness and a lot of brain damage. but these days I got over that and I don't spent too much time on my laptop as before so it's better then before but still I get those feelings of nausea and dizziness
I've been reading a lot of articals about eyes and brain and other stuff, and now I ended up in this forum
did anybody find a solution yett?? I'm soo confused
so it's the monitor that is causing all of this right??
Edit:
I checked my new laptop screen it's a led screen, and I checked my friends screen that's causing me nausea too, it's led too, then I checked my tv and my home computer that I'm fine with them they are lcd
so I guess I have problems with led monitors