Lenovo x280

Maxx

I've used Lenovo x280 at work for 3 years now, without problems.

I decided to buy a spare one, if that fails.

Got one with exactly same specs, but immediately noticed that the display is much brighter. Well, turns out that after 3-4 hours of use my eyes were completely bloodshot and after one night, still very irritated.

So this confirms yet again: The source of the problem can be the display, even if there is no PWM. Or it can be the device driving the display. I did not try this with my external screen, but since it is the same hardware and software otherwise, I of course would expect that it would not produce eye strain with my HP external screen.

But since this panel seems to be otherwise similar, only the colors are brighter and the luminance is higher, it is really mind-boggling what is the reason this particular panel is irritating.

I had ditherig activated, but it has never made a difference for me.

JTL

Maxx Unfortunate to hear of your secondary laptop not working.

It might be possible using Device Manager to get hardware ID's from both screens and compare them, as a first step.

diop

Maxx Is the BIOS version on both machines identical? The new device might have a more up to date BIOS/VBIOS installed.

ryans

Maxx I did not try this with my external screen, but since it is the same hardware and software otherwise, I of course would expect that it would not produce eye strain with my HP external screen.

Could be interesting to try anyway.

Maxx

Same ID, but definitely a different panel.

JTL

Maxx Two factors occur to me

Could be same panel, but "panel lottery" gimmicks (well if brightness is different, ignore that)
If panel is really different and your looking at the correct hardware ID's, could be different panel made to look the same. Disturbing but not impossible.

Lauda89

Maxx Download HWinfo to check the panel!

JTL

Lauda89 I forgot about the one. Not sure how well it works, but certainly worth a try.

Maxx

Testing these is always a bit difficult. It takes 2-4 hours to get the eye redness and strain to start. But it takes sometimes even 2 days to go away.

So testing if the laptop causes eye strain when connected to an external monitor is at least a 2 day process. When I feel that it would not add that much value, I have to avoid one day of red burning eyes and 4 hours of using the device.

orangepeel

Maxx Maxx, how are you going with your X280?