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Could you tell me how to fix this (no sound through HDMI)?

Hi, I have problem with HDMI audio. No sound through HDMI, how to fix this? Thanks.

Hi, which BIOS version do you have? F10? I have F14a, I cannot set CSM=disabled.

I found this page it could be the problem of AMD Radeon RX 580. But I don’t have Windows, so it is a dead end! https://www.techpowerup.com/forums/threads/solved-csm-uefi-bios-issues-sapphire-rx-580-nitro-special-edition.261415/

I tried again. No matter how I changed the BIOS setting to disable CSM, the computer doesn’t boot. I wonder if I should take off first the RX 580 card?

Thank you, I will check Youtube.

I use to disable CSM but when I did this, the scree goes dark and can hear be be be sound. I could only reset cmos to get it work again. Strange.

@jamesst20 What is your BIOS setting, when you use OC?

Hi, for BIOS → CSM Support : Disabled. Every time when I disabled CSM then caused bee sound on computer startup. I have RX 580 on board. Should I disable on board GPU first than disable CSM support?

Since I upgraded to Mojave and also upgraded the bios, well well well, the shutdown problem was gone!

Maybe this is a hardware problem. So I gave up to improve the hack.

Ok, got the change. Nothing chages. I have still shut down issue.

Ok, I reinstalled the system and the shutdown issue appeared with verbose. See the photo. Is the problem causes by USB or WiFi Card? I have changed the USB setting as you suggested. The camera came back, but still no bluetooth. See the problem report. The shutdown issue is stil there.

I mean the second one, it is actually an USB3 port. Sorry for my mistake. So, there is no way to fix the shutdown issue? After select shutdown, but the fan is still running and the power button is on. Problem report.

Because the USB2 and USB3 use the same port.

Ok, I changed. So the shutdown problem is still a no-go? Maybe I should downgrade to Sierra.

My ports used: HP11/SSP1: USB3 left HP11: USB2 left HP12: USB2 near right HP13: USB2 far right HP18: Webcam Not bluetooth detected.

1. There is HP11 that corrresponds to my USB3 SSP1, right? 2. I have deleted VoodooPS2Controller.kext. 3. Backlight control is implemented. 4. Deleted NVmExpressDxe-64.efi and changed to OsxAptioFixDrv-64.efi. 5. Remove AirParrot software. 6. Deleted FakePCIID_BCM57XX_as_BCM57765.kext 7...

Ok, thank you very much!!!

I tried my best to correct the USB port, see the code: // Initial trim SSDT-UIAC.dsl for Acer Aspire E1-572 DefinitionBlock ("", "SSDT", 2, "hack", "UIAC", 0) { Device(UIAC) { Name(_HID, "UIA00000") Name(RMCF, Package() { "HUB1", Package()...