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[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

sleep is turned off. This seems to occur simply from logging out and logging back in.
I'm not aware of any solution for this, but it may be useful to:
  • Check if this happens on real Macs running Cubase.
  • Try a Google search.
  • Contact Cubase tech support for advice.
One can also circumvent the problem by not logging out. Instead, we can enable Screen Saver with Password Lock.
 
I'm not aware of any solution for this, but it may be useful to:
  • Check if this happens on real Macs running Cubase.
  • Try a Google search.
  • Contact Cubase tech support for advice.
One can also circumvent the problem by not logging out. Instead, we can enable Screen Saver with Password Lock.
I think you have mistaken me for someone else. My problem isn’t related to cubase. I don’t have cubase installed. My problem is losing HEVC acceleration upon logging out. This also happens when a different user logs in. Tested via QuickTime, fcpx and Resolve. Playing 4K sword smith demo video results in smooth playback originally, but will lag and stutter after a log out. It definitely doesn’t happen on my real Mac. Wondering if it’s related to my GPU or some setting in config file.

also wanted to add how much I appreciate the time you take to reply to all these questions!
 
Because your card uses the familiar Aquantia AQC107, please try Option 2 in this post, but keep SecureBootModel set to Disabled (not Default):
No luck with adding the patch. Do you have any other ideas?
Also tried disabling CSM support, but that made the gpu not work anymore. I'm reseting the CMOS now and trying again.
 
I think you have mistaken me for someone else. My problem isn’t related to cubase. I don’t have cubase installed.
Quite right. This is one of those "can't remember what I had for lunch two days ago"! :)

My problem is losing HEVC acceleration upon logging out. This also happens when a different user logs in. Tested via QuickTime, fcpx and Resolve. Playing 4K sword smith demo video results in smooth playback originally, but will lag and stutter after a log out. It definitely doesn’t happen on my real Mac. Wondering if it’s related to my GPU or some setting in config file.
Please have a look at the thread linked below, and in particular Post 4 and Post 6. If the Device ID of your GPU is one of the following, then the kext in Post 4 will apply. System Information --> Graphics/Displays will show Device ID -- look at the first 4 bytes of each device ID below and compare with "Graphics/Displays --> Device ID".
XML:
            <key>IOPCIMatch</key>
            <string>0x67E01002 0x67E31002 0x67E81002 0x67EB1002 0x67EF1002 0x67FF1002 0x67E11002 0x67E71002 0x67E91002</string>
 
If Mojave was a fresh install, then an in-place upgrade to Catalina would be perfectly okay. But you would need to follow the Mojave-to-Catalina upgrade guide carefully. To unlock MSR 0xE2 (CFG-Lock) it is strongly recommended to install BIOS F9g in which this is already done by default. To find BIOS F9g, open the Quick Reference spoiler at the top of Post 1 and select the 9th bullet in Section 1.
I'm actually on a Z370N, and I don't think the latest BIOS has a CFG lock option, so I'll have to use the alternative method
 
I'm actually on a Z370N, and I don't think the latest BIOS has a CFG lock option, so I'll have to use the alternative method
If native NVRAM is already working then you're in good shape and can skip the CFG-Lock steps.
 
EDIT: found it

How could I check this?
  • In Terminal, type the following to create a temporary NVRAM entry:
Code:
sudo nvram TestVar=HelloWorld
  • Now reboot and log back in.
  • Open Terminal again and check if the that temporary entry still exists:
Code:
sudo nvram -p | grep 'TestVar'
  • If you get an empty reply then NVRAM is not working, otherwise it is working.
  • If you're running Clover, check if you have EmuVariableUEFI64.efi in the CLOVER/drivers/UEFI folder.
    • If this is present then "native" NVRAM is not set up.
    • If this is not present then everything is fine and you have native NVRAM.
 
Does having iMac19,1 or iMacPro1,1 make any difference in my configplist? I still cant figure out why my fcpx is exporting kind of slowly. cpu or gpu just never cranks up at all on any export.
 
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