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Dr. Hurt

Dr. Hurt

Member Since 29 Jan 2006
Offline Last Active Yesterday, 08:10 PM
*****

Posts I've Made

In Topic: Clover on real mac

19 February 2017 - 07:56 PM

Can Clover even load a custom DSDT for Windows? How?

In Topic: With "PNLF" internal display turns off after apple logo

01 February 2017 - 11:08 AM

Zero can happen if you close the lid, then shutdown the computer (eg. using an external monitor).


Recent churn there, so yes, that is also possible.

 

Ah, that might actually be it in my case.

 

I have a nasty habit of hitting the shutdown button and slamming the lid shut immediately (even before the user session closes). 

 

Thanks RehabMan.

In Topic: With "PNLF" internal display turns off after apple logo

31 January 2017 - 04:56 PM

I know. But where does (did?) that zero come from? I obviously never set brightness to zero before shutdown.

 

Must have been nvram corruption (Clover issue?)

 

Once again, I haven't had that problem in some time.

In Topic: With "PNLF" internal display turns off after apple logo

31 January 2017 - 03:49 PM

Fix your NVRAM implementation.

 

Brightness level is remembered across reboots so I think NVRAM is working.

It seems to work correctly 90% of the time. Sometimes though (randomly) it just dims to zero on boot.

 

Worth saying that I haven't had this issue in sometime. Maybe a Clover/macOS update fixed it. (Especially since Clover seems to use a new nvram save script).

In Topic: With "PNLF" internal display turns off after apple logo

31 January 2017 - 02:58 PM

Are you using RehabMan's IntelBacklight.kext? (If so, try removing it)

 

I have a similar issue whereby every couple of boots, the screen gradually dims till it turns off.

On checking the nvram, I found that backlight is set to zero which causes the kext to lower brightness to zero on boot.

 

Haven't found a fix yet.

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