Thinkpad t450/t450s MacOS Sequoia 15

[matte-oss]

Mac os sequoia stable Is now relased!👀

#137 (comment) by @Grabowskyy

And then patch the gpu with oclp: https://github.com/dortania/OpenCore-Legacy-Patcher/releases/

It should be working fine!

Known issues:

• The integrated brightness slider doesn't work: Use Brightness Slider
• Volume Control using FN keys stopped working
• Airportitlwn 2.3.0 doesn't work perfectly.

Let me know if there are any issues

[hlbomfim]

How U use OCLP? When install don`t ask to Allow in Privacy & Security.

[matte-oss]

How U use OCLP? When install don`t ask to Allow in Privacy & Security.

Strange, for me It asks, After it's done patching before rebooting try seeing if you can allow It in the settings manually

[hlbomfim]

How U use OCLP? When install don`t ask to Allow in Privacy & Security.

Strange, for me It asks, After it's done patching before rebooting try seeing if you can allow It in the settings manually

The problem. And the patch doesn't work

[Grabowskyy]

Same here with that issue. I can install macOS normally, but after patching, the system doesn't want to boot. I have a ThinkPad T450 with Intel I5 5300U processor, but for some reason in the system report it shows Intel I7
log.txt
. Here's the log I got after macOS disabled the extention.

[matte-oss]

Sadly i haven't got time to look into this.

[lweixing55]

The integrated brightness slider does not work, the screen goes black when the device wakes up from sleep mode, and the OCLP patch does not work. I think These are all caused by the incomplete shielding of the independent graphics card.
Here is the solution：
1、acpi-path
PCI0.VID to IGPU #2 (Thinkpad) disable
PCI0.VID to IGPU #1 (Thinkpad) disable
2、dp-PciRoot(0x0)/Pci(0x2,0x0) add
disable-external-gpu(key) 01000000(value) data(data-type)

Is anyone willing to try?

[Grabowskyy]

I actually decided to try your solution. I changed the config file according to your comment, created a separate partition for Sequoia and installed the system, but after patching the graphics with OCLP the system still kernel panicks. The report I got is exactly the same as the one I linked above. I should probably mention that when I went back to Sonoma I had to use older EFI because my MiniDP wasn't working.

[lweixing55]

I actually decided to try your solution. I changed the config file according to your comment, created a separate partition for Sequoia and installed the system, but after patching the graphics with OCLP the system still kernel panicks. The report I got is exactly the same as the one I linked above. I should probably mention that when I went back to Sonoma I had to use older EFI because my MiniDP wasn't working.

Are your Lilu.kext and WhateverGreen.kext the latest versions? If not, please update to the latest version and try again.
I don't have an external monitor, so I didn't test MiniDP. Maybe you can try PCI0.VID to IGPU #1 (Thinkpad) enable.

I have T450 with i5-5200u processor, and it works fine.
Good luck

[Grabowskyy]

Thank you for reminding me of the most important step which was updating kexts, becasue now it actually works. MiniDP still isn't working though. I'll try a few more things and if I get it to work I'm gonna update this comment. Thank you :)

[hlbomfim]

Sequoia 15.1 / Opencore 1.0.2 and OCLP 2.0.2+

EFI: https://drive.google.com/file/d/1KK0BCK-YCJCc1az_JF8zfR5GQtI9LOJh/view?usp=sharing

Problems:

• Intel Network Adapter because Airportitlwn 2.3.0 doesn't work perfectly.
• Volume Control at FN keys stop to work
• Brightness: Install Brightness slider at AppStore

[Grabowskyy]

Ok so I fixed the MiniDP issue. I used my old EFI and updated all kexts in it. If there's anyone who would like to take a look and figure out why it works on this EFI then here's the link to download: https://drive.google.com/file/d/1sxtSm7SGBJ3kU9M_MsJN6AP_32n1uuVd/view?usp=sharing

Thank you :)

== EDIT ==

I replaced the link to download because I figured out why MiniDP wasn't working. It was all because of the System Product Name. In the EFI posted by @hlbomfim it is MacBookPro16,4 which uses UHD 630/Radeon Pro 5600M GPU, but the ThinkPad doesn't have that. I changed the System Product Name to MacBookPro16,3 and generated an entire SMBIOS for it and now MiniDP is working.

[hlbomfim]

Ok so I fixed the MiniDP issue. I used my old EFI and updated all kexts in it. If there's anyone who would like to take a look and figure out why it works on this EFI then here's the link to download: https://drive.google.com/file/d/1sxtSm7SGBJ3kU9M_MsJN6AP_32n1uuVd/view?usp=sharing

Thank you :)

== EDIT ==

I replaced the link to download because I figured out why MiniDP wasn't working. It was all because of the System Product Name. In the EFI posted by @hlbomfim it is MacBookPro16,4 which uses UHD 630/Radeon Pro 5600M GPU, but the ThinkPad doesn't have that. I changed the System Product Name to MacBookPro16,3 and generated an entire SMBIOS for it and now MiniDP is working.

Let's try at night..

[hlbomfim]

Ok so I fixed the MiniDP issue. I used my old EFI and updated all kexts in it. If there's anyone who would like to take a look and figure out why it works on this EFI then here's the link to download: https://drive.google.com/file/d/1sxtSm7SGBJ3kU9M_MsJN6AP_32n1uuVd/view?usp=sharing

Thank you :)

== EDIT ==

I replaced the link to download because I figured out why MiniDP wasn't working. It was all because of the System Product Name. In the EFI posted by @hlbomfim it is MacBookPro16,4 which uses UHD 630/Radeon Pro 5600M GPU, but the ThinkPad doesn't have that. I changed the System Product Name to MacBookPro16,3 and generated an entire SMBIOS for it and now MiniDP is working.

IT
WORKS...
GREAT...
WONDERFUL...

I change the serial :-)

2 Updates:

update BlueToolFixuo.kext and use this to enable bluetooth intel: https://elitemacx86.com/threads/how-to-fix-intel-wifi-and-bluetooth-on-macos-sequoia-and-later.2066/#-step-4-add-bluetooth-parameters

regards