Huawei MateBook 14s, eye strain and how I solved it

Andreiid

RomaRS Try turning off the toggle "Panel Self Refresh". You can find it in Intel Comand Center. Please let me know if your viewing experience improves any further.

RomaRS

Andreiid it's been turned off from the beginning for me. btw I've been using dGPU mostly. But last two days I checked on Intel iGPU just out of curiosity. My settings are all default, plus I turned off panel self refresh and all other power saving panel options. Also decreased contrast in color section from 17 to 12. Forced 8-bit. G-Sync disabled. Ditherig tool launched just in case, however I do not see much difference with or without it. To me the experience on iGPU is roughly the same as on dGPU, so can copy-paste my observations above for the Intel iGPU as well. Oh one more thing I debloated my zephyrus laptop by removing asus bloatware using armoury crate uninstall tool and switched to ghelper. not sure if that's important.

pavvell

simplex

Powersavings, contrast, brightness…

Brightness varies, I can comfortable work even at 30% (in the evening) and around 70 during the day, cause I do not have much natural light in the room.

Night light - off

HDR - off

Scale - 200%

Resolution - 2520 x 1680

Color space - Standard Dynamic range (SDR)

Refresh rate - 90Hz

Intel graphic center settings:

Color format - RGB

Color depth - BPC_8

Brightness enhancement - All colors, 38%

Red intensity - 38, Green intensity - 38, Blue - 38

Contrast enhancement - all at 17

Hue - 0

Saturation - 50

Gamma 2.2 (not adjustable)

Graphic driver - 31.0.101.5382

simplex

pavvell Intel graphic center settings:

Thank you! The settings you described, looks default…

pavvell

simplex Color depth default was 10, and I think changing it to 8 (real panel color depth) was the real solution, but, may be the update of drivers also played a role, I did it all in one day so can't tell what exactly contributed the most.

simplex

pavvell

dont you think, your laptop brightness is same as your old device? do you feel that 14s screen has more "bright white" than old devices?

pavvell

simplex it is brighter, I think it is 400 nits and my previous MTB 2015 was 300 nits. I never keep it at 100% while MTB was very comfortable at 100% and at any level basically. This one is also ok at any level of brightness. Mine old MTB is still waiting to be recovered, but I think Matebook's white is different, but it could be because I never keep it 100%, because it looks more grayish I guess, my new Air has more of a blue tint to it that kills me. But overall, the display is more or less the same as my old MTB. May be I can post a photo after I recover my old laptop to compare.

photon78s

pavvell

Would you be able to measure the pixel flicker from pixel inversion and/or temporal dithering using a cheap microscope of your display? A lot of folks here are concerned and interested in temporal dithering and I have recorded many videos of pixel flicker using the Carson MicroFlip scope and a 240fps slow motion phone camera. Perhaps setting color depth to 8 bit might have removed or reduced the pixel flickering but it is ideal to have empirical evidence of this.

simplex

photon78s to measure the pixel flicker from pixel inversion and/or temporal dithering

I can show you vids:

6 bit: only pixel inversion
8 bit: pixel inversion + FRC (oldschool type, 4 repeating pattern)
8 bit + dithering + pixel inversion + FRC

the last one is very noisy and FRC detection is very problematic

pavvell

photon78s it would be interesting to do, but I'm somewhat on the move, traveling from one place to another and this is one of the reason why I can't return mine new Air that I can't use. So if I get the microscope I can compare three laptops: matebook, my old MTB and new Air. But I'm not sure if that's something I can do anytime soon.

photon78s

simplex

Would be great to see these vids as they would help folks here differentiation between different types of pixel flicker.

simplex

photon78s

checkmsg here -> https://ledstrain.org/d/2807-safe-hardware-pc-builds-list/7