Leaderboard

Last update: 17 Jun 2020 Target macOS release: Catalina 10.15.x This is a Clover-based installation using the well-known/well documented vanilla method detailed below: Working: full graphics acceleration on Intel UHD620 iGPU, including brightness control (with Lilu v1.3.8 + WEG v1.3.2) multi-display with HDMI OOB, including HDMI-to-DVI adaptation (HDMI-to-VGA not successful) and VGA/DP over USB Type-C audio, including HDMI, microphone input and headset output (with AppleALC v1.3.9 & layout 11 + CodecCommander v2.7.1) GigEthernet LAN connection (with IntelMausiEthernet 2.4.0 kext) wireless and bluetooth with any compatible card (a DW1820A in my case) left and right USB ports (with Hackintool-generated USBPorts), including USB Type-C integrated webcam (OOB) CPU power management sleep (Lid, Energy Saver settings, Apple menu, Fn-Insert, PWR button) & wake (Lid, PWR button) battery management (with ACPIBatteryManager v1.90.1) keyboard (with VoodooPS2Controller v1.9.2) touchpad (with VoodooI2C v2.1.4 + VoodooI2CHID v1.0), including tap-to-click (mandatory in PrefPane settings), scroll & zoom, rotate or other multi-finger gestures. On occasions, won't work until system is rebooted one or several times. RTS525a microSD card reader (Performance limited to 5MB/s) Not working: Touchpad buttons TrackPoint 1) 10.15 USB installer creation Using a USB key of 8GB minimum, create a Catalina USB installer through the following Terminal command: sudo <path>/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/<USB key> where: <path> = location of Catalina installation package (eg: /Applications if freshly downloaded) <USB key> = name of formatted USB volume (eg: USB_8GB) The process will take several minutes. Once completed: install Clover bootloader on the USB installer with the following customised settings: Clover for UEFI booting only Install Clover in the ESP UEFI Drivers Recommended drivers ApfsDriverLoader AptioMemoryFix AudioDxe DataHubDxe FSInject HFSPlus SMCHelper Human Interface Devices Ps2MouseDxe UsbMoueDxe File system Drivers Fat Additional Drivers NvmExpressDxe PartitionDxe Themes (optional) Install Clover Preference Pane (optional) you may use version r5093 attached below: Clover_v2.5k_r5093.pkg.zip once Clover is installed, launch Clover Configurator app and mount the freshly created EFI partition of the USB installer Clover Configurator.zip open this EFI partition and transfer/copy the files & folders from the Latitude 7490 Catalina Clover pack below to the EFI/Clover folder: 7490_Catalina_Clover_Pack.zip 7490_Catalina_Clover_Pack_#2.zip 7490_Catalina_Clover_Pack_#3.zip 2) 10.15 installation boot the Catalina USB installer at the Clover main menu, select the "Install macOS Catalina" partition (but don't press [ENTER]) press [SPACE], select -v verbose option in the menu, then choose to boot with the selected options proceed with installation, creating & formatting the target Catalina installation through Disk Utility as/if required on 1st reboot, boot off the USB installer and select the freshly created "macOS install from <target Catalina partition>" repeat this until this partition is no longer offered and only the target Catalina partition is left to boot Reboot the target Catalina partition via your USB installer 3) Post-installation tuning Once the target Catalina partition has booted, complete the 1st boot configuration tuning Once at the desktop, install Clover bootloader on the Catalina partition/disk with the customised settings listed above Once Clover is installed, launch Clover Configurator app and mount the freshly created EFI partition of the Catalina partition/disk Open this EFI partition and transfer the files & folders from the above Latitude 7490 Catalina Clover pack to the EFI/Clover folder You may then reboot and verify that Catalina boots off your disk through Clover Edit: 02 Nov 2019: - - - - - - - - - - - - - Revised Clover pack #2: DW1820A properties injection commented out (only required for those who have such a card, in which case, remove the # character) Edit: 20 Apr 2020: - - - - - - - - - - - - - Added a note about solution for Realtek RTS525a SD card reader. Edit: 17 Jun 2020: - - - - - - - - - - - - - Revised Clover pack #3: Moved patched DSDT out of ACPI/patched folder since it's causing KP for most people. It was only patched to support brightness control through Fn-F11/Fn-F12. Jake Lo has provided SSDT alternatives in other guides/threads so it's best to use that. I'll try them asap on the 7490 and update accordingly.