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johnnynunez / Xiaomi-Notebook-air-12-5

EFI Xiaomi Notebook air 12'5
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Bios PWM xiaomi air 12.5 #14

Closed ghost closed 5 years ago

ghost commented 5 years ago

Hi, thanks for this project. It is working great. Everything is working perfectly but I have a problem with the flickering at half brightness caused by PWM. I modded the vbios to set PWM to 2000hz but I can’t write the full bios with fptw...can you help me with that? I am on bios A5, xiaomi air 12.5 6y30.

johnnynunez commented 5 years ago

You need a flash programmer. I bought one on banggod but you can fix this with rmcf

johnnynunez commented 5 years ago

I have the solution and i will post next days

ghost commented 5 years ago

Why is it possible to flash the Xiaomi Air 13 bios without programmer and the air 12.5 is not? I’ve already tried changing the PWMMax in RMCF but the flicker worsened, unfortunately :/

johnnynunez commented 5 years ago

only on xiaomi notebook pro is possible and air 13 first gen

ghost commented 5 years ago

I tried your last commit and it partially worked. I changed LMAX to 0xD2 and flicker is completely gone. Thank you :)

ghost commented 5 years ago

I was wrong, it is gone when brightness is set at 10%, but perceivable when brightness is set within 20-70%

johnnynunez commented 5 years ago

on skylake it is 0x56c :(

johnnynunez commented 5 years ago

@overnightmare95 At the moment I do not have a flicker on the screen