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Hi, I recently bought a sapphire radeon RX 580 nitro+ graphics card. Everything went fine and I have not seen any major issues so far. However, there is a glitch during the boot process. When the apple logo refreshes during boot, there is a white flashing light (sometimes it's visible only at...

@RehabMan Do you have any idea on how to resolve my issues(especially graphics freeze)? Or could this be a hardware issue?

A small update on the HD630 issues that I have been facing.. - Boot screen is sometimes not garbled (observed during a new start after a shutdown). But this is not consistent. Most of the times the boot screen is still garbled. - The artefacts on the top right corner of the screen are still...

Ok thank you! One more question.. how could I see the complete log of the last boot (or verbose boot log)? I saw a point in the first post of this thread about using “console->file->save as” but couldn’t find anything like that!!!

Ok.. about the fluctuations in intel power gadget? Is that expected?

Isn’t it possible to reproduce a scenario to produce results similar to post#1 of this thread? Or how could it be confirmed that proper CPU/IGPU power management has been implemented?!

I was running geekbench and cinebench while monitoring using AppleIntelInfo.kext..

Hi I followed this guide for native power management and the following are my results. (edit: I am using High Sierra public beta(17A344b)) AppleIntelInfo.kext v2.6 Copyright © 2012-2017 Pike R. Alpha. All rights reserved. enableHWP................................: 0 Settings...

I tried adding this property but still see the artefacts:( Any other suggestions?!!?

Yes, I also used that flag but the problem persisted. And yesterday I noticed that a new version of lilu.kext with High Sierra support was available. I also tried that kext without -lilubeta flag, no improvements though..

Yes.. I am also using -igfxbeta boot flag

I tried all the ig-platform-id values.. but nothing seems to resolve both the artefacts issue and the garbled boot screen:(

Thanks.. did you manage to solve the artefacts issue on your machine? If so, can you pls tell me the ig-platform-id that you used?

Ok, I will try. I am not sure if it's a basic question, but could you tell me where I might find valid ig-platform-id values that are suitable for Kaby Lake?

Hi @RehabMan, any ideas for the issues in my previous post (post #15)? Could increasing the DVMT memory help in some way? (I already tried increasing it to 128MB but no change..I am not sure whether any framebuffer patches are needed to support 128MB DVMT)

wow.. thanks a lot!! previously I only had -shikibeta flag.. after adding -shikigva, quicksync got enabled :) But I still have the following issues: - Artefacts on the top right of the screen. It happens after login and whenever an application is maximised and again resized. - Boot screen...

I already have shiki.kext placed in clover/kexts/other folder and boot flag -shikibeta (since High Sierra not supported yet??)

With this ig-platform-id, I am not able to boot into macOS :( It always keeps restarting at halfway through the apple logo. Is there any additional change needed in the plist together with this id?

Can you please tell me how to enable this? I already tried injecting ig-platform-id as "0x59120000" but that didn't seem to solve any of my issues. It's set as 64MB in the bios.. should this be changed? Thanks:) I didn't know that I already have these kexts (along with shiki.kext too) in my...

Hi, the following are the issues I have noticed - Graphics acceleration not working (checked using MacX Video Converter Pro). - Artefacts on the top right of the screen. It happens after login and whenever an application is maximised and again resized. - At random times the mouse pointer...