mrdr

awesome, your solution worked perfectly.

Hi, I let the computer did the update, and now screen brightness is not working any more, the screen brightness bar is there, but it make no different when I move it. anyone else has the similar problem?

no improvement, PS: I tried to load Linux Mint, display problem, just black screen. I also tried Phoenix OS, again, black screen. so it must be something the LCD has different connection or setting that prevent the display. thank you all for the help, I am going to put back windows, and let me kids use it.

Still not able to see the desktop, and it loaded into the desktop, screen backlight on.

unfortunately, both file didn't work, can't see the desktop, but computer load into desktop. could it be the build in monitor connect through HDMI internally?

thanks, here is my config.plist file. config.plist 2.zip

Result with new DSDT file: still no display, can't see the desktop, but computer load into the desktop. now the LCD backlight is on, I can see the backlight, but nothing on screen. do I need to change anything in my config.plist?

PippoX0, thanks for the patched file, unfortunately, it didn't work. I still need to use nv_disable=1 to get into the desktop, also, wifi not working, and video card memory changed to 256MB, it should be 512MB. thanks,

Hervé, thanks for all the help, I can't make the video works for me, the monitor might be internally connect through HDMI. that is why it didn't work. i m going to put it back windows and use it. thanks all for the help.

1. just enable eject EDID, same result, black screen, remote login can see the desktop. 2. (done by cover configrator)enable Eject EDID, and past the above value in the box, save it. reopen the config file, the value has change. restart computer, same result, black screen, remote login can see the desktop. when I edit the config.plist with xCode, it doesn't accept the EDID value.

I change the boot loader to Clover today, and still need to apply NV_DISABLE=1 in order to get into OS X desktop. can you take a look at my config file? thanks, config.plist.zip

can it be inject to Chamelone boot loader? I don't have a clue to mod the DSDT file.

here are the files, monitor.zip

can you tell me what utility and how to extract the EDID info from my hack? thanks,

I changed it to iMac 11,1 and here is the IOReg file iMac.ioreg.zip