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X299 Big Sur Support

Joined
Aug 2, 2012
Messages
168
Motherboard
Gigabyte X299 Designare EX ver1
CPU
i9-9960X
Graphics
RX Vega 64
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Mobile Phone
  1. iOS
  • What version of Ubuntu are you running? uname -r
Ubuntu:~$ uname -r
5.11.11-051111-generic
  • Is there is a /sys/bus/thunderbolt directory?

  • If so, is there a /sys/bus/thunderbolt/devices directory as well?
Screenshot from 2021-04-02 19-21-58.png


Hopefully this helps Casey,

Just out of curiosity, what does SJ stand for? San Jose, California by any chance? ;)
I apologize in advance if the answer to the above question is none-of-my-business :)
 
Joined
Aug 2, 2012
Messages
168
Motherboard
Gigabyte X299 Designare EX ver1
CPU
i9-9960X
Graphics
RX Vega 64
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Mobile Phone
  1. iOS
Guys, please help, I managed to screw up my system just by rebooting into Ubuntu once to check some settings. I don't really know much about dual boot, and installing Ubuntu in parallel to my already working Mac worked well, multiple reboots, various updates to Ubuntu, always stayed on the background, and whenever I needed, I just use F12->Ubuntu(dedicated SSD drive) just for that.
Right now what happened is that after I reboot, I go with default boot options which is suppose to be my Mac, press ENTER, and, to my surprise dive directly into Ubuntu. I thought I've made a mistake, tried again, same thing.
I disconnected my Ubuntu SSD completely, the Ubuntu option to boot is still there, next to my Mac's drive option. I select Mac, and my computer goes into reboot mode automatically.

I booted with my rescue USB now, look at the content of EFI on my Mac, and there's ubuntu subfolder right next to OC and Boot. What a hack is it doing on my Mac drive? What changed it, because until last reboot, it wasn't there.

In any case, I can't boot without my rescue USB, and some of the parameters are outdated on it.

Please help, what's going on here.
 
Joined
Aug 2, 2012
Messages
168
Motherboard
Gigabyte X299 Designare EX ver1
CPU
i9-9960X
Graphics
RX Vega 64
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Mobile Phone
  1. iOS
1617419260990.png

So, this is what appeared on my EFI after my last boot into Ubuntu.
I did delete ubuntu from my EFI, and the other 2 files from the BOOT.

Trying to boot, my system displays this error message:
Failed to open \EFI\BOOT\grubx64.efi - Not Found
Failed to load image \EFI\BOOT\grubx64.efi - Not Found
start_image() returned Not Found

(of course the files is not there, it was never supposed to be there, and I deleted it!)

Please help!!!
 
Joined
Aug 2, 2012
Messages
168
Motherboard
Gigabyte X299 Designare EX ver1
CPU
i9-9960X
Graphics
RX Vega 64
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Mobile Phone
  1. iOS
Ok, I wiped out my EFI, copied the entire content of same from rescue USB, and updated a few parameters to match what I had before, seemed to be working again.
 
Joined
Jul 15, 2012
Messages
104
Motherboard
Asus WS X299 SAGE/10G
CPU
i9-7980XE
Graphics
RX 6900 XT
Mac
  1. iMac
Mobile Phone
  1. iOS
@djlild7hina

Hi dear,

one question: the Radeon Pro W5700 is natively supported in macOS Big Sur?
Thanks!
 
Joined
Apr 18, 2011
Messages
1,478
Motherboard
ASUS Pro WS X299 Sage II
CPU
i9-10980XE
Graphics
W5500
Mac
  1. MacBook Air
  2. Mac Pro
Mobile Phone
  1. iOS
Joined
Sep 8, 2011
Messages
78
Motherboard
Asus WS X299 SAGE 10G
CPU
i9-7960X
Graphics
WX4100
Mac
  1. Mac Pro
Mobile Phone
  1. iOS
I'm having some issues with Wx4100 too. I'll try another cable mDP.
 
Joined
Apr 18, 2011
Messages
1,478
Motherboard
ASUS Pro WS X299 Sage II
CPU
i9-10980XE
Graphics
W5500
Mac
  1. MacBook Air
  2. Mac Pro
Mobile Phone
  1. iOS
I'm having some issues with Wx4100 too. I'll try another cable mDP.

Kernel panics? I’m having random green screens (hdmi) or black screens (DP). I’ve tried a few things but hoping it’s ram related. I disabled XMP and it’s been a little more stable but haven’t tested it enough to see if the issue is 100% gone. I started a return process on eBay in the meantime.
 
Joined
Sep 8, 2011
Messages
78
Motherboard
Asus WS X299 SAGE 10G
CPU
i9-7960X
Graphics
WX4100
Mac
  1. Mac Pro
Mobile Phone
  1. iOS
At the moment, some flickering (black screen randomly). Work perfectly in windows... so I think is drivers issues in latest release of macOS BS. (20E5224a)
 
Joined
Apr 18, 2011
Messages
1,478
Motherboard
ASUS Pro WS X299 Sage II
CPU
i9-10980XE
Graphics
W5500
Mac
  1. MacBook Air
  2. Mac Pro
Mobile Phone
  1. iOS
At the moment, some flickering (black screen randomly). Work perfectly in windows... so I think is drivers issues in latest release of macOS BS. (20E5224a)
Like black screen then freezes? Or it comes backs. Mine hard freezes and have to reboot it.
Yeah I’ve tried several versions of BS and the issue is still there. I haven’t had issues in windows so far but I’m rarely in windows on my hack
 
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