litemint09 Posted March 27 Share Posted March 27 (edited) 6 hours ago, deeveedee said: Just upgraded my HackBookPro16,2 to Tahoe 26.4 Release. Painless upgrade resulting in a perfect hack. This hack uses Open Core 1.0.7 Release VoodooHDA.kext 3.1.2 (with VoodooHDAEnableVolumeChangeFix=True, thanks to MaLd0n and Lockdown) for Audio itlwm 2.3.0 / Heliport 1.5.0 for Intel Wi-Fi IntelBluetooth kexts and BluetoolFixup.kext 2.7.2 for Intel Bluetooth SIP csr-active-config = <01000000> No root patches Incremental Upgrade Reveal hidden contents GeekBench 6 CPU Reveal hidden contents EDIT: These System Settings are significantly improving graphics performance on my underpowered Intel iGPU Accessibility > Display > Reduce Transparency: Enabled Accessibility > Motion > Reduce Motion: Enabled Hi Deeveedee, hows the battery performance on your elitebook so far? Edited March 27 by litemint09 2 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848492 Share on other sites More sharing options...
deeveedee Posted March 27 Share Posted March 27 @litemint09 Battery life is outstanding in both Sequoia and Tahoe. At least as good as Windows 11. 4 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848497 Share on other sites More sharing options...
kaoskinkae Posted March 28 Share Posted March 28 I've been testing until I confirmed that the problem I was having with the slow and annoying mounting of the XFAT formatted mechanical hard drive is solved and it mounts without issue. Now let's think about why. Well, it could be because I removed the kexts that weren't working for the Broadcom Wi-Fi, or it could be the addition of the NVMeFix.kext. Although I think it's the Broadcom kexts plus AMFIPass.kext. It's confirmed that it was the Wi-Fi kexts, later patched by OCPL, that were causing the delay on the desktop of the mechanical data drive in Tahoe. If anyone else experiences this, please confirm. Disabling the NVMeFix.kext kext does not cause the delay error when mounting the XFAT mechanical hard drive on the desktop. in NEW: 2 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848504 Share on other sites More sharing options...
deeveedee Posted March 28 Share Posted March 28 (edited) Not sure where to post this, since I couldn't find the original question. Hopefully this finds the person who asked the question. My apologies for what may be an off-topic post. Someone had indicated that their hack has a serial port that macOS was detecting and associating with a network device. This serial port / network device was interfering with a Wi-Fi USB dongle. I don't know if this helps you, but attached is an SSDT that I created on one of my hacks to "hide" a serial port from macOS. This attached SSDT assigns class-code = <FF FF FF FF> so that macOS ignores the UART. You will need to modify the ACPI path and _ADR for your device. I hope this helps. EDIT: Note that I needed to use the class-code technique, because I attempted to create an _STA method that conditionally returned Zero for Darwin, but the _STA method did not work. Modifying class-code was the only way that I could achieve the desired result on my hack for this device. SSDT-UART.aml.zip Edited March 28 by deeveedee 2 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848509 Share on other sites More sharing options...
deeveedee Posted March 28 Share Posted March 28 (edited) 2 hours ago, kaoskinkae said: It's confirmed that it was the Wi-Fi kexts, later patched by OCPL, that were causing the delay on the desktop of the mechanical data drive in Tahoe. If anyone else experiences this, please confirm. Disabling the NVMeFix.kext kext does not cause the delay error when mounting the XFAT mechanical hard drive on the desktop. Just to confirm, you are saying that ExFAT volume access slows down AFTER you apply OCLP modern Wi-Fi patches and that ExFAT volume access is faster BEFORE you apply OCLP modern Wi-Fi patches. Is that correct? EDIT: Or are you saying that simply downgrading / injecting the Wi-Fi kexts with Open Core (without applying OCLP root patches) causes the ExFAT performance issue? Edited March 28 by deeveedee 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848511 Share on other sites More sharing options...
MakAsrock Posted March 28 Share Posted March 28 10 minutes ago, deeveedee said: Just to confirm, you are saying that exFAT volume access slows down AFTER you apply OCLP modern Wi-Fi patches and that exFAT volume access is faster BEFORE you apply OCLP modern Wi-Fi patches. Is that correct? I need to check, but for that I need a mechanical disk, which I don’t have. Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848512 Share on other sites More sharing options...
kaoskinkae Posted March 28 Share Posted March 28 31 minutes ago, deeveedee said: Just to confirm, you are saying that ExFAT volume access slows down AFTER you apply OCLP modern Wi-Fi patches and that ExFAT volume access is faster BEFORE you apply OCLP modern Wi-Fi patches. Is that correct? EDIT: Or are you saying that simply downgrading / injecting the Wi-Fi kexts with Open Core (without applying OCLP root patches) causes the ExFAT performance issue? Not without applying the OCPL patch with the kexts installed and the Wi-Fi icons grayed out. That is, before applying the OCPL patch, be prepared to do so, which you can do or not; in my case, I didn't because I use a wired network. 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848513 Share on other sites More sharing options...
deeveedee Posted March 28 Share Posted March 28 21 minutes ago, kaoskinkae said: Not without applying the OCPL patch with the kexts installed and the Wi-Fi icons grayed out. That is, before applying the OCPL patch, be prepared to do so, which you can do or not; in my case, I didn't because I use a wired network. Sorry, but I still do not understand. As long as @MakAsrock understands, that's ok. Does this have to be tested with a mechanical drive, or can the ExFAT be created on a USB or SSD? Best to move this discussion to the OCLP-Mod/Experimental thread. 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848515 Share on other sites More sharing options...
Slice Posted March 28 Share Posted March 28 I installed Tahoe 26.4 on a mechanical drive and have no OCLP. There is also Data partition as exFAT. All is good. After Tahoe started I have to wait several minutes until Data will be mounted. FileVault is disabled at the bootloader level to be never ON after updates. I stopped Documents and Desktop synchronisation with iCloud. It was very slow. 2 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848516 Share on other sites More sharing options...
MakAsrock Posted March 28 Share Posted March 28 1 hour ago, deeveedee said: Just to confirm, you are saying that ExFAT volume access slows down AFTER you apply OCLP modern Wi-Fi patches and that ExFAT volume access is faster BEFORE you apply OCLP modern Wi-Fi patches. Is that correct? EDIT: Or are you saying that simply downgrading / injecting the Wi-Fi kexts with Open Core (without applying OCLP root patches) causes the ExFAT performance issue? I created an ExFAT file system on a USB drive and didn't notice any difference. It runs very slowly with or without the patch, but I have a very slow drive. I found a 3.5" Seagate Barracuda 8 TB ST8000DM004 SATA 6Gb/s (SATA-III) hard drive in the storage room, and it also didn't make any difference. 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848517 Share on other sites More sharing options...
kgp Posted March 28 Share Posted March 28 (edited) I have an EVO 870 SATA-III SSD 1TB formatted with ExFAT. As everybody knows I am using OCLP. Absolutely no issues! No idea what this is all about. Edited March 28 by kgp 2 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848518 Share on other sites More sharing options...
Alpha22 Posted March 29 Share Posted March 29 I have a Western Digital 2TB Green SATA III drive formatted in ExFAT, i use OCLP No problem! 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848540 Share on other sites More sharing options...
laobamac_yyds Posted March 29 Share Posted March 29 (edited) Fix thread_invoke and thread_dispatch TSC non-monotonic panic on Darwin 25.4.0+(26.4+) for AMD Laptop. PR: https://github.com/AMD-OSX/AMD_Vanilla/pull/215 Edited March 29 by laobamac_yyds 1 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2848546 Share on other sites More sharing options...
osx86minded Posted April 14 Share Posted April 14 On 3/29/2026 at 12:16 PM, laobamac_yyds said: Fix thread_invoke and thread_dispatch TSC non-monotonic panic on Darwin 25.4.0+(26.4+) for AMD Laptop. PR: https://github.com/AMD-OSX/AMD_Vanilla/pull/215 Thank you very much, comfirmed working on Lenovo Legion laptop! 2 Link to comment https://www.insanelymac.com/forum/topic/362564-release-macos-tahoe-264-25e246/page/3/#findComment-2849159 Share on other sites More sharing options...
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