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Support for CoreDisplay 10.14.2 added (#297)
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#280
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@qvt @Floris497
qvt authored and Floris497 committed Jan 5, 2019
1 parent 2b960c2 commit 0e5aecd
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50 changes: 26 additions & 24 deletions CoreDisplay-patcher.command
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Expand Up @@ -6,13 +6,13 @@ thiscommand=$0
CoreDisplayLocation="/System/Library/Frameworks/CoreDisplay.framework/Versions/A/CoreDisplay"

# for development
# CoreDisplayLocation="/Users/user/Desktop/CoreDisplay"
# CoreDisplayLocation="/Users/<user>/Desktop/CoreDisplay"

# Current CoreDisplay md5 Checksum
CoreDisplayCurrent="$(md5 -q $CoreDisplayLocation)"

# Current CoreDisplay md5 Checksum of the '(__DATA,__data)' section expoted by otool
# This makes it possable to detect a patch regardless of the signing certificate
# Current CoreDisplay md5 Checksum of the '(__DATA,__data)' section exported by otool
# This makes it possible to detect a patch regardless of the signing certificate
oToolCoreDisplayCurrent="$(otool -t $CoreDisplayLocation |tail -n +2 |md5 -q)"

# md5 checksum of '(__DATA,__data)' section exported by otool from unpatched CoreDisplays
Expand All @@ -32,6 +32,7 @@ oToolCoreDisplayUnpatched=(
5f51331dce01f1ced84643f6c996e324 '10.13.2 (17C88) and 10.13.3 (17D47)' 4
6e04ad9d1f2bf43dc01ed92a0ba4b8ac '10.13.4 (17E199)' 4
a273850d90c3cdf39f17ad63ed43203a '10.13.5 (17F77)' 4
714a9e14ccc64b0cf4bef2f083087d8e '10.14.2 (18C54)' 5
)

# md5 checksum of '(__DATA,__data)' section exported by otool from patched CoreDisplays
Expand All @@ -50,10 +51,11 @@ oToolCoreDisplayPatched=(
a337a6a85264817d78a90122ebbc2723 '10.13.2 (17C88) and 10.13.3 (17D47)'
11882f5e04a525da6701777c814c920a '10.13.4 (17E199)'
b5dd02fe05903d7c39791afc642f9b2b '10.13.5 (17F77)'
2d71736504e14882b2eb5e994859ec09 '10.14.2 (18C54)'
)

function makeExit {
printf "Closing..\n"
printf "Closing...\n"
exit
}

Expand All @@ -66,11 +68,12 @@ function askExit {
}

function SIPInfo {
printf "more info: Google 'SIP'\n"
printf "Google for 'MacOS System Integrity Protection' to get more info on the subject.\n"
}

function help {
printf "using this script without input will patch CoreDisplay if supported version found\n"
printf "Using this script without input will patch CoreDisplay if a supported version can be found.\n"
printf "Supported arguments:\n"
printf "patch [v1-v3]\t patch on a specific version\n"
printf "\t\t eg. $(basename $thiscommand) patch v2\n"
printf "unpatch\t\t undo patch\n"
Expand All @@ -83,8 +86,8 @@ function testSIP {
if hash csrutil 2>/dev/null; then
if [[ "$(csrutil status | head -n 1)" == *"status: enabled (Custom Configuration)"* ]]; then
printf "SIP might or might not be disabled\n"
printf "the script might or might not be working\n"
printf "check \"\$ csrutil status\"\n"
printf "This script might or might not be working\n"
printf "Check \"\$ csrutil status\"\n"
SIPInfo
askExit
elif [[ "$(csrutil status | head -n 1)" == *"status: enabled"* ]]; then
Expand Down Expand Up @@ -125,16 +128,15 @@ function CoreDisplayPatch {
sudo touch /System/Library/Extensions
printf "Re-signing $CoreDisplayLocation\n"
sudo codesign -f -s - $CoreDisplayLocation
printf "Running 'sudo update_dyld_shared_cache' (Might need re-run after reboot) - CAN TAKE A WHILE (Maybe even 10/30 minutes)"
printf "Running 'sudo update_dyld_shared_cache' (Might need a re-run after reboot) - CAN TAKE A WHILE (Maybe even 10/30 minutes)"
sudo update_dyld_shared_cache
;;
5) printf "Patching CoreDisplay with patch version 4\n"
# inspired from: https://github.com/PMheart/CoreDisplayFixup/commit/c9c37a1040584e38cd3ccc53b1dac15df988ba11
sudo perl -i.bak -pe '$before = qr"\xBB\x01\x00\x00\x00\xA8\x01\x0F\x85"s;s/$before/\x31\xDB\x90\x90\x90\x90\x90\x90\xE9/g' $CoreDisplayLocation
sudo touch /System/Library/Extensions
# Version 5 is an experimental patch for Mojave 10.14.1 and 10.14.2 from https://github.com/Floris497/mac-pixel-clock-patch-V2/issues/280.
5) printf "Patching CoreDisplay with patch version 5\n"
sudo perl -i.bak -pe '$before = qr"\xBB\x01\x00\x00\x00\xA8\x01\x0F\x85"s;s/$before/\x31\xDB\x90\x90\x90\x90\x90\x90\xE9/g' $CoreDisplayLocation
sudo touch /System/Library/Extensions
printf "Re-signing $CoreDisplayLocation\n"
sudo codesign -f -s - $CoreDisplayLocation
printf "Running 'sudo update_dyld_shared_cache' (Might need re-run after reboot) - CAN TAKE A WHILE (Maybe even 10/30 minutes)"
sudo update_dyld_shared_cache
;;
*) printf "This patch does not exist, make sure you used the right patch identfier\n"
Expand All @@ -150,7 +152,7 @@ function CoreDisplayUnpatch {
printf "Moving backup file back in place\n"
sudo mv $CoreDisplayLocation.bak $CoreDisplayLocation
else
printf "No backup found, the patch has either not been done, or the backup file has been deleted.."
printf "No backup found, the patch has either not been applied, or the backup file has been deleted."
fi
}

Expand All @@ -177,10 +179,10 @@ function testCoreDisplayPatch {
if [[ ! -f "$CoreDisplayLocation.bak" ]]; then
echo "Patch failed to run"
elif [[ $(otool -t $CoreDisplayLocation.bak |tail -n +2 |md5 -q) != $(otool -t $CoreDisplayLocation |tail -n +2 |md5 -q) ]]; then
echo "The code of CoreDisplay changed, the patch was probbably succesfull"
echo "The code of CoreDisplay changed, the patch was probably successful."
else
echo "The code is still the same.. Patch did seem to run, but was probbably from the wrong version.."
echo "If you are running an new os run $thiscommand md5 and ask the maintainer of this script to add support for your system"
echo "The code is still the same. Patch seemed to run, but was probably for the wrong version."
echo "If you are running a new OS, run $thiscommand md5 and ask the maintainer of this script to add support for your system."
fi

}
Expand Down Expand Up @@ -231,7 +233,7 @@ function test {
fi
done
if $nothingWasFound; then
echo "Unknown version of CoreDisplay found.."
echo "Unknown version of CoreDisplay found."
CoreDisplayPrintAllMD5
fi
}
Expand All @@ -241,8 +243,8 @@ function options {
if [[ $1 == "patch" ]]; then
#test if there is a backup file
if [[ -f "$CoreDisplayLocation.bak" ]]; then
printf "An backup file already exists, if you force this patch on an already patched version you will loose the original backup!\n"
printf "This will lead you to reinstall the OS if you loose a working version of CoreDisplay. be carefull\n"
printf "A backup file already exists - If you force this patch on an already patched version you will lose your original backup!\n"
printf "Be careful: Having no working version of CoreDisplay requires you to reinstall the OS.\n"
printf "It might be wise to undo the patch before trying to redo it using: $thiscommand unpatch\n"
askExit
fi
Expand All @@ -262,7 +264,7 @@ function options {
exit
elif [[ $1 == 'unpatch' ]] || [[ $1 == 'depatch' ]]; then
if [[ ! -f "$CoreDisplayLocation.bak" ]]; then
printf "There is no backup file, we can not undo the patch. the patch might not even been done.\n"
printf "There is no backup file, we cannot undo the patch. The patch might have not even been applied.\n"
makeExit
fi
CoreDisplayUnpatch
Expand All @@ -279,12 +281,12 @@ function options {
test "patch"
exit
else
printf "option is not valid\n"
printf "Option is not valid\n"
printf "\n"
help
exit
fi
}

# runs the script
# Run the script
options $1 $2
4 changes: 2 additions & 2 deletions README.md
View file
Expand Up @@ -2,11 +2,11 @@

Based on [my fork of the repository](https://github.com/floris497/mac-pixel-clock-patch) and [the original project which is hosted on google code](https://code.google.com/p/mac-pixel-clock-patch/wiki/Documentation)

## CoreDisplay 10.13.2 now supported by script (DID ONLY TEST FOR MYSELF YET) and Nvidia WEB drivers (Maxwell & Pascal) (GTX 1080, GTX 1070, GTX 1060)
## CoreDisplay 10.14.2 now supported by the patch (EXPERIMENTAL, see [Issue 280](https://github.com/Floris497/mac-pixel-clock-patch-V2/issues/280)) and Nvidia WEB drivers (Maxwell & Pascal) (GTX 1080, GTX 1070, GTX 1060)

### Do not unpatch after updating!!! When updating the backup is not removed. unpatching will result in the old backup to be made active this means you will loose your current CoreDisplay driver and you won't have a backup.

### For 10.12 and later please use the CoreDisplay patched insetad of IOKit. Pixel clock has been moved.
### For 10.12 and later please use the CoreDisplay patched instead of IOKit. Pixel clock has been moved.

If this patch helped you, and you are happy with the result you could consider making a little donation to my PayPal account on (email found here: http://minimind.nl/paypal.html)

Expand Down

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