So I made dual boot build (I'm excited to show you more of it once it will be fine tuned) wih the following specs:
i7-9700
ASRock Z390 Phantom Gaming ITX/ac (BIOS V4.0)
Sapphire Nitro + RX 590
M.2 NVMe SSD MP510 as primary disk boot with Clover and macOS
M.2 SATA SSD MX500 with Windows 10 (UEFI, GPT)
I installed Windows 10 first, then macOS and Clover using the vanilla guide.
So I was looking for a fix to get monitor's native resolution (2560x1440, set in config.plist) during MoBo boot, Clover and macOS boot and I found out that disabling CSM would do the trick, and it did. The thing is that it also prevent Windows from booting. Now when I select the Windows entry in Clover, I stay on a black screen (with GPU fans keeping turning meaning there is no progression in the boot process - normally they turn off a few seconds after).
I found several persons with a similar issue (Windows wont boot after disabling CSM) but another problem: their Windows disk using MBR instead of GPT. The thing is that my Windows disk is already in GPT (it's how I installed Windows).
I tried to keep CSM enabled and change underliying options to "UEFI only" or "disabled", but it does not solve the resolution issue. Secure boot is disabled since the beginning.
Do you have any idea about what does prevent Windows from booting ?
Or maybe another idea to fix the resolution problem while keeping CSM enabled ?
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