Ditherig.exe on two exact same x280's

Maxx

I forgot my laptop to my summer place at the weekend. So I had to break out another x280 laptop - exactly the same spec, using it with same external screen.

My eyes got really red during the first day, on the second I was already unable use and my kids asked why my eyes are so red.

I installed ditherig like I had on my other computer, but first it didn' t seem to work due to security settings.

Now I think it should work, but I have no way to confirem with any banding or dithering tests. I just know that now that I again was using the previous laptop, I had zero problems, but during the afternoon as I tried to yet again get Ditherig to work, I started getting eye strain.

Same software, same drivers, same hardware. Same external screen. Why is the other laptop unusable and other has not ever caused me any discomofort?

WhisperingWind

Maxx

Could you try disabling the graphics card in the device manager or switching to the Microsoft Basic Adapter Driver? Do your eyes feel any better?

AgentX20

Maxx It could be as simple as a different panel manufacturer. Many laptop models use panels from more than one source.

DisplaysShouldNotBeTVs

AgentX20 This is what I was thinking at first, but they mentioned that the difference is even affecting their (same exact) external monitor that's plugged in

Maxx

AgentX20 I'm not using the laptop panel at all, just the same external.

JTL

DisplaysShouldNotBeTVs Assuming everything else about the test environment is the "same" (e.g cloned disk between both laptops) it could be (V)BIOS differences between both units.

Maxx

JTL I'm thinking it's the ditherig that does not get enabled in the other laptop due to security.

Is there any way to check.

The other option is to use the "good" laptop without ditherig.exe for a day or two and feel by eyes getting bloodshot and irritated. But that requires really at least 1.5 days of using without dithering.

JTL

Maxx JTL I'm thinking it's the ditherig that does not get enabled in the other laptop due to security.

What kind of security?

How about this. Take the hard drive/SSD out of the "good" x280 and put it in the "bad" x280 for the sake of a test?

Maxx

JTL Thanks, that is actually a good idea.

Maxx

JTL by security I mean windows defender and virus scanners. I did get it set up as allowed, but I'm so sure if there is still some part that is not having access

simplex

You need to find difference in hardware (gpu, motherboard + bios, screen) and software (OS, drivers, configs)

Limitless

Also don't forget that once you're in pain it becomes harder to look at a "good" hardware.

It is the same as running too much and hurting your legs or ankles. Once hurt you just need to take a break before running again, even if your favorite shoes are waiting for you and asking to go out.

Ivan_P

Did your laptop shows a picture only on external screen? Did you disable desktop sharing between internal and external screens?

Maxx

Yes, I always use only external screen. Though whenever I'm not at home office, I use the laptop and that does not irritate and the new one has the same panel