Choppy video and choppy response in Sonoma after downtime

[jotaperez]

Hi.

I have a problem that appeared after some Sonoma update. Specifically, after a while of the equipment being on but without activity, I notice that when I return to work with the equipment, the YouTube videos play intermittently, the video is intermittent but the sound continues. At first I thought it was a browser problem but it happens to me in all browsers. Then I started to notice that it also happened with the keyboard and mouse that respond with a delay. I thought the problem was related to the screen automatically turning off after a few minutes, but now I have it configured so that it does not turn off and despite this the problem persists. The only solution is a reboot.

I have the version of Sonoma 14.4 with Opencore 0.9.9. My Smbios is iMac20.,1 because I have "headless" mode set since my CPU is an I7-10700K and I have a Shapphire RX570 video card.

I will appreciate any help.

Greetings!

[MaLd0n]

Use iMacPro1,1 smbios with -wegnoigpu bootarg

[jotaperez]

Thanks @MaLd0n for your response.

One question: Should I just change the smbios model and add the boot argument it tells me to my config.plist file?

I ask you because in "DeviceProperties" I have the following configuration:

PciRoot(0x0)/Pci(0x2,0x0)
AAPL,ig-platform-id = 0300C89B

And this configuration is for CPUs that have iGPU (used for encoding/decoding without connection to monitor) and that also have dGPU with connection to monitor.

Thanks since now!

[MaLd0n]

use iMacPro1,1 with -wegnoigpu bootarg