With Big Sur and OC 0.6.7, shikigva settings are ignored. Instead, try SMBIOS for iMac15,1 with a device property
for your RX580 set to unfairgva number 7.
Input on OC 0.6.8
I installed OC 0.6.8 and the new kexts. In my first try, I used the OpenHfsPlus.efi
instead of HfsPlus.efi, and I failed to update the Resources folder. It booted ok,
but I lost OpenCanopy and had the text-based OS selection. On the second try,
I went back to the HfsPlus.efi...
MiniBUU and Taskrov,
In post #1007 here, I posted an EFI for the latest Big Sur with SMBIOS set to iMac15,1 and OC0.6.6
which includes a working USBPorts.kext for this SMBIOS. No renames are necessary, and USBInjectall
is not used. I looked at Taskrov's, but I don't have any good experience...
As far as USBMap.kext, I think you can adopt one of the provided USBPorts.kext to fit
your system.
You may have to modify the Info.plist inside of the Contents folder of the kext to fit your
SMBIOS, and Hackintool can produce a prototype kext for you. Hackintools and USBMap
tools aren't so...
67BGTEV,
At the present time, I have two groups of HP 8300 machines. The first group
has Nvidia GT730 graphics cards and i5-3470 CPU, and they are configured
as iMac13,2 with macOS Catalina 10.15.7 and OC 0.6.6. Here is a copy of the
EFI for this first group.
If you have a different CPU you...
When I first updated to OC 0.6.6, I used the new drivers, but I had the same mistake
as the sample.plist, in that it listed driver HfsPlus.efi, but I had changed over to the new
OpenHfsPlus.efi instead, and it caused it to hang before the boot picker was displayed.
It doesn't sound like your...
They deleted the BootProtect key from the config.plist in OC 6.6,
as should you. The Bootstrap directory in EFI/OC was deleted also.
Did you run ocvalidate from the Utilities directory to check that
you had all the new keys for OC 6.6? The new default values in their
Docs/Sample.plist worked for me.
If you look at the section of top-level code called kern_weg, you'll see that in Big Sur,
the two sections of code called kern_cdf and kern_shiki are bypassed, and kern_unfair
is run instead.
Kern_cdf manages the cdfon boot option and enable-hdmi20 device properties (no longer
available in Big...
My RX 570 was booting to black screen during the picker process
and would return to normal operation towards the end of Apple's
progress bar when the only monitor was on HDMI. If I plugged a
second monitor into DVI, or plugged my single HDMI monitor into
a Dataport to HDMI adapter, I didn't see...
New Big Sur DRM Method in OC 0.6.5! (updated twice 1/11)
This is new and not thoroughly tested, but we have a new WEG DRM
method for Big Sur.
I first got it working with an i5-3570K HP 8300 CMT with a MSI 4 GB
RX 560 LP graphics card, configured with SMBIOS of iMac15,1. I tested
it again today...
The BIOS details are listed under previous versions here:
https://support.hp.com/us-en/drivers/selfservice/hp-compaq-elite-8300-convertible-minitower-pc/5232845/model/5232846?sku=QV993AV
Version 3.08 was mostly security updates I think.
I have a very similar system with i5-3570K RX 570 SMBIOS IMP11 OC 0.6.5
With IGPU off, I can download AppleTV mpeg files, and then play them afterwards.
I can't stream or play AppleTV HLS files. VideoProc shows 4K HEVC and H264.
Hackintool says VDADecoder is fully supported. HEVC files, like...
I have a similar problem with Big Sur on my HP 8300 with RX 570.
My main monitor is plugged into the HDMI port. If it is the only monitor
plugged in, it goes dark before the OC picker, and only lights up again
towards the end of the boot process.
I find that if I plug a second monitor into the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.