[solved] Black Screen after upgrade to High Sierra

[Tacchan]

Tried both, no success!
With 95 I have problems after sleep.
With A5 or B5 no more problems but bad blur in lock screen.

 

[rafigh89]

Tried both, no success!
With 95 I have problems after sleep.
With A5 or B5 no more problems but bad blur in lock screen.

did you follow RehabMan guide for implement backlight control Of laptops (https://www.tonymacx86.com/threads/...l-using-applebacklightinjector-kext.218222/)?

 

[Tacchan]

Yes did all of that and backlight control works.

 

[rafigh89]

Yes did all of that and backlight control works.

send your default EDID as text and also your edited displayvendorID-xxx folder

 

[shikaka]

lets try with an example (my display):
my default EDID (according to Darwin Dymper) is:
header: 00 ff ff ff ff ff ff 00
serial number: 06 af ed 38 00 00 00 00 2b 18
version: 01 04
<snip>

This example made it crystal clear for me, and I was able to fix my black screen issue as a result. Thanks man!

 

[rafigh89]

@gatesjunior
please try this as another chance. rebuild cach and fix permissions, then restart.

 

[gatesjunior]

@gatesjunior
please try this as another chance. rebuild cach and fix permissions, then restart.

O.k., so this is with the Fireport Cinema or whatever that is ? Or are there more changes ?

 

[Ranguvar]

Anyone else get color banding once black screen (in my case, corrupted screen) issue is fixed?
Noticeable in Launchpad and at login screen.
Reference: https://www.tonymacx86.com/threads/glitched-screen-after-screen-turns-off.239078/#post-1637580

 

[bhavik9243]

edit/customize Macbook Air or iMacRetina Display (step6) and try again.

Here is my EDID info.

 

[rafigh89]

post #45 updated. read it carefully.

Here is my EDID info.

your edited EDID is wrong. read post #45 and try again.