- Joined
- Jul 26, 2013
- Messages
- 194
- Motherboard
- Sony VAIO VPCSA
- CPU
- i5-2430 2.40GHz/HM67
- Graphics
- Radeon HD 6630M / Intel HD 3000
- Mac
- Mobile Phone
As you probably know, Sierra 10.12.4 changed something which broke brightness settings for most people. Although RehabMan's solution works for most people, it doesn't work for people like me who must inject EDID by Custom EDID either with DSDT or Clover. As RehabMan points out, this is necessary for some laptops such as Fujitsu and Sony.
So if you are using Custom EDID for your current configuration, you must also inject Apple ProductID to your Custom EDID and follow RehabMan's guide afterwards.
- Save below script to `edidparser.rb`
- Open terminal and run `ruby edidparser.rb` from the folder that you saved this script file.
- Script will read your current EDID from the system and will print out patched ID for you. It will inform you for every step it makes.
Clover
===
If you are using Clover for Custom EDID, use the output of screen colored Green and paste it to Clover's config.plist/Graphics/EDID/Custom/
DSDT
===
If you are using DSDT to inject your custom EDID, find your EDID patch in your DSDT probably something with
AAPL00,override-no-edid or AAPL00,override-no-connect and change it with script result.
Script uses 0x9C7C as product ID which is a ID from MacBook Pro. If you want to change the product id, edit the script and change line 60 and 61.
After injecting productID with this way, you will have working brightness controls. However, if you don't follow RehabMan's guide, you will not get full brightness. Therefore you *MUST* follow his guide after you successfully injected product id to your custom EDID.
So if you are using Custom EDID for your current configuration, you must also inject Apple ProductID to your Custom EDID and follow RehabMan's guide afterwards.
- Save below script to `edidparser.rb`
- Open terminal and run `ruby edidparser.rb` from the folder that you saved this script file.
- Script will read your current EDID from the system and will print out patched ID for you. It will inform you for every step it makes.
Clover
===
If you are using Clover for Custom EDID, use the output of screen colored Green and paste it to Clover's config.plist/Graphics/EDID/Custom/
DSDT
===
If you are using DSDT to inject your custom EDID, find your EDID patch in your DSDT probably something with
AAPL00,override-no-edid or AAPL00,override-no-connect and change it with script result.
Script uses 0x9C7C as product ID which is a ID from MacBook Pro. If you want to change the product id, edit the script and change line 60 and 61.
After injecting productID with this way, you will have working brightness controls. However, if you don't follow RehabMan's guide, you will not get full brightness. Therefore you *MUST* follow his guide after you successfully injected product id to your custom EDID.
Ruby:
#!/usr/bin/ruby
BLACK = 30
RED = 31
GREEN = 32
YELLOW = 33
BLUE = 34
MAGENTA = 35
CYAN = 36
WHITE = 37
def color(src,color=RED)
src = "\e[#{color}m" + src + "\e[0m"
end
bytes = []
if ARGV.count == 0
puts color("Reading EDID from SYSTEM")
begin
data=`ioreg -l -w0 -d0 -r -c AppleBacklightDisplay`
edid_hex=data.match(/IODisplayEDID.*?<([a-z0-9]+)>/i)[1]
vendorid=data.match(/DisplayVendorID.*?([0-9]+)/i)[1].to_i
productid=data.match(/DisplayProductID.*?([0-9]+)/i)[1].to_i
puts "found display: vendorid #{vendorid}, productid #{productid}, EDID:\n#{edid_hex}"
bytes=edid_hex.scan(/../).map{|x|Integer("0x#{x}")}.flatten
rescue Exception => bang
puts "Can't Read EDID from SYSTEM. Make sure you have Rename GFX0 to IGPU patches applied."
puts "Error Details: "
puts bang
puts bang.backtrace.join("\n")
exit
end
else
puts color("Reading EDID from FILE")
file = ARGV.first
edid_hex = File.read(file)
bytes=edid_hex.scan(/../).map{|x|Integer("0x#{x}")}.flatten
end
puts "EDID Length : " + color(("%d bytes" % bytes.length),GREEN)
edid=bytes[8..20]
if edid[0] >> 7 != 0
puts color("This EDID is corrupted")
else
first = (edid[0] & 0b01111100) >> 2
second = ((edid[0] & 0b00000011) << 3) + ((edid[1] & 0b11100000) >> 5)
third = edid[1] & 0b00011111
puts "=====Original EDID Data START======"
puts "Manufacturer: " + color((first+64).chr + (second+64).chr + (third+64).chr)
puts "Product Code: " + color(("%02X%02X" % [edid[3], edid[2]]), BLUE)
puts "Serial Number: " + color(("%d" % (edid[4] + (edid[5] << 8) + (edid[6] << 16) + (edid[7] << 24))), GREEN)
puts "Week of Manufacture: " + color(("%d" % edid[8]),RED)
puts "Year of Manufacture: " + color(("%d" % (edid[9] + 1990)),BLUE)
end
checksum = (0x100-(bytes[0..126].reduce(:+) % 256)) % 256
puts "Calculated checksum: " + color(("0x%x" % checksum),GREEN)
puts "Original checksum: " + color(("0x%x" % bytes[127]),RED)
puts "=====Original EDID Data END======"
puts "=====Creating Fixed EDID====="
puts "Setting Manufacturer to " + color("APP",BLUE)
bytes[8] = 06
bytes[9] = 16
puts "Setting Product Code to " + color("9C7C",RED)
bytes[10] = 0x7C
bytes[11] = 0x9C
puts "Setting Serial to " + color("0",GREEN)
bytes[12] = 0
bytes[13] = 0
bytes[14] = 0
bytes[15] = 0
puts "Setting Week of Manufacture to " + color("10",BLUE)
bytes[16] = 10
puts "Setting Year of Manufacture to " + color("2012",RED)
bytes[17] = 22
checksum = (0x100-(bytes[0..126].reduce(:+) % 256)) % 256
puts "Calculated checksum: " + color(("0x%x" % checksum),GREEN)
puts "Original checksum: " + color(("0x%x" % bytes[127]),BLUE)
bytes[127] = checksum
puts "Fixed EDID for Clover:" + color(("\n#{bytes.map{|b|"%02X"%b}.join}"),GREEN)
puts "Fixed EDID for DSDT: (Insert to Brightness Fix patch)"
byte_number = 0
line_size = 8
puts color("\"AAPL00,override-no-edid\",")
puts color(( "Buffer "), MAGENTA) + color(("(0x%2X)" % bytes.length),BLUE) + "\n{"
while byte_number < bytes.length
if (bytes.length - byte_number) >= line_size
characters = bytes[byte_number..(byte_number+line_size-1)]
else
characters = bytes[byte_number..bytes.length]
end
puts color(("#{characters.map{|b|sprintf("0x%02X, ",b) }.join}"),BLUE)
byte_number +=line_size
end
puts "}\n"
Last edited:
ownloads cesar$ ruby edidparser.rb
