Catalina This time ... UHD620 Graphics Woes

[MaLd0n]

[ref]deevey[/ref], same patch work in mojave and catalina, idk what happens in ur case, need investigate

[deevey]

I have no idea either If it works with Mojave it "should" work with Catalina.

I think I will have to stick with Mojave for now, look into OpenCore perhaps or even non-vanilla way of doing things

[deevey]

Ok last attempt maybe ...

I slow motion captured the output of verbose and transcribed the errors / warnings that I could see below (there might be a some typos)

Could any of these be the potential problem in Catalina ?

“name” not a kext

“failedImage” not a kext

ACPI Error: [CPUB] namepace lookup failure, AE not found (20160930/dswload-292)

ACPI Exception: AE_NOT_FOUND. During name lookup/catalog (2016090930/psobject-310)

ACPI Exception: AE_NOT_FOUND (SSDT: CPUm) while loading table (20160930/tbxfload-319)

ACPI Error: 1 table load failures, 2 successful (20160930/tbxload-342)

Warning - kext com.apple.driver.usb.Apppleusbhostplatform properties declares no com.apple.kpl.* dependencies if it uses any KPI’s the link …. Calling npo_policy_init for Lilu

ACPI Error [DTGP] namespace lookup failure, AE_NOT_FOUND (201609030/psargs-463)

ACPI Error: Method Parse/exceution failed [\_sb.pci0.rp01.eth0._dsm] (node ffffff8033384510), AE not found (20160930/psparse-632)

AppleIntellpssgspil:: start : initgspigoio failed

Warning: kexts unavailable; proceeding w/o lock for

Notice - new kext com.apple.driver.kextexclude list , v15.1.1 matches relinked kext but can’t determine if executables are the same …..

Applelmucontroller::smcgetkeyinfo Error ; recieved error 0x84 when getting key info for ALRV

Appleintellpssi2c-1:iniyI2CGpio: no isol, validateobject returned 0xe00002bc

Appleintellpssi2ccontroller-1::notificationpublishedhandler: get channelnumber failed

Appleintellpssi2c-1:iniyI2CGpio: no isol, validate object returned 0xe00002bc

Appleintellpssi2ccontroller-1::notificationpublishedhandler: get channelnumber failed

Appleintellpssi2ccontroller-1::notificationpublishedhandler: get channelnumber failed

Appleintellpssi2c-1:iniyI2CGpio: no isol, validateobject returned 0xe00002bc

Appleintellpssi2ccontroller-1::notificationpublishedhandler: get channelnumber failed

Appleintellpssi2ccontroller-1::notificationpublishedhandler: get channelnumber failed

Unexpected session? 100000 uid: -1 requested by: 106

Applekeystore: operation failed (pid 106 sel: 17 ret : e00002c2 -536870206 - 1 100000)

unexpected session : 10000 did -1 requested by: 106

Apfs _load_ lnode_internal: 3952: *** reset ino 1061145 size pack to 0 (from 57)

ACPI_SMC_platform_plugin::start wait for service resourcematcing (appleintelcpumanagement) Timed out.

Warning IOplatformpluginutil: getCPUIDinfo: this is an unknown cpu model 0x8e

— powermanagement may be incomplete or unsupported.

ApplePMC :: publishedIOPFF() - Failed

Link to the full slow mo capture below.

[deevey]

Ok so it turns out that in order to get Graphics working 100% in Mojave with audio all that was required are these two lines in Xcode.

This enables 4k, VDA decoder and appears to have 3 video outputs (Probably 2x via USB C which I cannot confirm).

I feel pretty certain at this point that the problem with Catalina stalling lies with faking of the ID. Maybe there will be a future solution.

 

<key>PciRoot(0x0)/Pci(0x2,0x0)</key>
		<dict>
			<key>AAPL,ig-platform-id</key>
			<data>CQAWWQ==</data>
			<key>device-id</key>
			<data>FlkAAA==</data>
		</dict>
	</dict>

 

[MaLd0n]

https://www.olarila.com/topic/6129-useful-links/

[xin hua wang]

ok call       __ZN18IGTelemetryManager16prepareTelemetryEj ; IGTelemetryManager::prepareTelemetry(unsigned int)

trigger the hang 10.15.0 ok but 10.15.1 hangs. could use 10.15 kext or nop the above.. but no idea how to inject the patch in newer osx