I have the same Mac as you have, with the 7950 and two Cinema LED displays. So far, I’ve only installed Big Sur with OCLP on my Macbook Pro from 2012. I’ve been planning to install BS on my 5,1 si your post is of interest for me.
I'm running Big Sur 11.2.3 on a Mac Pro 5,1 with an Nvidia GTX 680 and 2 DELL S2817Q Displays running at 3840x2160with no problem. I've been thinking of throwing my HD7970 in it just for grins. I'll report back if I do.
Please add a signature to your account settings with your hardware and software. Since most installations of Big Sur were patched so far I do not get which patching tool you used before.
Long story short:Maybe I made a discovery.
Premise: does Photo Boot work in your Big Sur 11.2.3 with Opencore or Micropatcher?... I just found out that Photo Booth is not working properly in my << Late 2013 iMac i7 27 inch CPU and NVIDIA GeForce GTX 780M 4GB VRAM >>. (Note: my Big Sur installation, with Opencore Legacy Patcher is from scratch and not over Catalina or an old System).
My sudden doubt is that iMac 14,2 to 15,1 spoofing is not enough to activate all the original Big Sur features, contrary to what has been stated so far (!!!!). Maybe there are problems with Quartz and therefore it would be necessary to also patch the graphics of the iMac late 2013, inserting a special Kext or other?...
I explain the problem in detail and how I provisionally solved it, hoping to help @Kronokornel and @Ausdauersportler solve it in an intelligent mode than me. Perhaps, behind the exclusion of late 2013 iMacs from official Big Sur support, there could also be an incompatibility of the graphics cards and not just the Fusion Drive (???).
ISSUE DESCRIPTION
1) Launch Photo Booth
2) The FaceTime HD camera (built-in) LED turns on, but the Photo Booth window appears black.
3) Taking a photo or starting a video, their creation works fine and the related preview icons appear, but the image of the HD FaceTime Camera (integrated) still does not appear on the screen.
4) ATTENTION, now! By clicking on "Effects" there are two effects that are active (I can see the previews with my image framed by the HD FaceTime Camera (integrated) and the two suggested effects.
5) So! If I select one of these effects now, my image taken by the HD FaceTime Camera (integrated) appears regularly in the video window of Photo Booth, obviously with the effect superimposed on me (birds or hearts surrounding my head).
HYPOTHESIS
All other Photo Booth's Quartz filters contained in /System/Library/Compositions/ are not accepted by Big Sur which perhaps sees a conflict with an officially unsupported graphics card.
FOLLOWS A MY PROVISIONAL SOLUTION which works in my case.
1) I make a copy of "Dizzy.qtz" effect contained in /System/Library/Compositions/ as it is one of only two working effects.
2) I have modified this effect, being in XML, using BBEdit and I experimented (casually) with cuts to the part concerning the birds that revolve around the head. I've been lucky!!!
3) So! I renamed "Dizzy.qtz" to "Normal.qtz"
4) I made a copy of Photo Booth which I called "Photo Booth my" and replaced the "Normal.qtz" file contained in Photo Boot me.app/Contents/Resources/Normal.qtz with the "Normal.qtz" file created by me.
5) Now my "Photo Booth my" opens showing normally my image taken normally and without overlay effects. Enjoy!
For those who want, I am attaching my "Normal.qtz" file. and if you don't want to create a copy of Photo Booth and use the file as explained above, put the file in the You_Home/Library/Compositions/ folder or in Macintosh HD/Library/Compositions/ (for all Mac users) and logout and log-in or restart your Mac.
In this case, starting the official Photo Booth app the black window will continue to appear; however, by clicking on Effects and scrolling through the pages, you will see the Normal filter with the image taken by the Facetime HD Camera (internal) without any effect on you. You can then select this normal effect and use it until a better solution than mine is found.
I hope there may be a more effective and radical solution that ALLOWS Photo Booth and therefore Big Sur to activate ALL other Quartz effects, as if it were an original iMac supported by Big Sur.
Kronokernel, Ausdauersportler and other talented friends, please help us, kindly
Photo Booth also works in my iMac 2010 booting from OCLP on SD to chain-boot an unpatched Big Sur 11.2.3 (that has installed over a Big Sur 11.2.3 patched by iMac Micropatcher previously).
So we have two NVIDIA GPU systems from two users installed with Big Sur using two different patcher methods, i.e. OCLP and iMac micopatcher.
A) Thank you for your suggestion, @Ausdauersportler, I did it
I found the courage to switch from Micropatcher to OpenCore Legacy Patcher. So! I created an installation USB key (original and unpatched), I reinstalled Big Sur with OpenCore Legacy Patcher EFI (I believe 0.0.12) and since then I have replaced the EFI partition with latest OCLP Main Build, almost every day. Do you think that doing so did not overwrite all the Big Sur installed with Micropatcher and so I should reformat the SSD newly, then redo a new installation with OCLP, from scratch?
SlingShot: Starting Local and Network Diags/Recovery Session at 03/12/2021 14:36.
SlingShotL8LocalBootSetup: Didnt find a recovery partition for startup disk, startup disk may not be set, (Not Found)
NetworkFinishOSRSHostInfoLookup: Resolved OSRS Hostname [osrecovery.apple.com] to 17.164.1.12, Port 80
GetStationAddressViaIpAgent: Client IP Address: 192.168.1.33
GetStationAddressViaIpAgent: Client Subnet Mask: 255.255.255.0
GetStationAddressViaIpAgent: Router IP Address: 192.168.1.1
GetStationAddressViaIpAgent: DnsServer 0 Address: 192.168.1.1
NetworkFinishOSRSHostInfoLookup: Resolved DNS Address on interface with address 192.168.1.33
NetworkFinishOSRSHostInfoLookup: Got 2 Network Interfaces.
NetworkFinishOSRSHostInfoLookup: Handle 0 was used for successful DNS resolution of OSRS.
SlingShot: Got OSRS Info: Hostname osrecovery.apple.com, Host IP 17.164.1.12, Port: 80
SlingShotSetupAuthParams: Got MLB SN 'C02412601ABCD3EFG' (Note that I modified SN for privacy)
SlingShotGetRecoveryType: Error getting RecoveryType (Not Found),
NetworkResolveDomainName: Resolved IP Address for 'oscdn.apple.com': 104.77.185.58
DownloadChunkedAsset: Downloading 48 chunks.
NetworkResolveDomainName: Resolved IP Address for 'oscdn.apple.com': 104.77.185.58
SlingShotUpdateProgressUI: 30 sec avg 24 KBps, 6625 KBps new total, last total 0 KBps, now 3312 KBps
SlingShotUpdateProgressUI: 30 sec avg 1495 KBps, 8342 KBps new total, last total 8488 KBps, now 8415 KBpsHi @traser! I see that you too have an Nvidia GTX 780M graphics card and an i7 CPU.
Or could the problem be solved by varying the OCLP's options when creating the EFI build? Thanks for your help.
Sorry but I will surely not dig into this!Hi @traser! I see that you too have an Nvidia GTX 780M graphics card and an i7 CPU.
At this point I would say that my doubts about the incompatibility of many Quartz effects with the Nvidia GTX 780M are well founded and perhaps it could also depend on the i7 CPU that you and me have.
What do you think, @khronokernel and @Ausdauersportler ? Did we find a bug where your need to do some extra work?
Note:
I specify that the graphics acceleration of the GTX 780M is recognized by Photoshop and also by the automatic setup of the VideoProc app and other video applications. Also, as I have already written, two Photo Booth effects work well and the effects become three if we consider the file "Normal.qtz" I created (by modifying "Dizzy.qtz") and attached before. It allows a copy of Photo Booth to function normally, following my instructions.
By the way, Traser! You can try my "Normal.qtz" and tell us if it works. I recommend that you use both methods that I explained to you in my first post and have fun.
Although already successful, exercised OCLP release 0.0.22 a bit further on MBP5,2.
OCLP doesn't touch Gatekeeper in any way. If you have it disabled, you must have done it on your own.
spctl --master-enableEven though I have install from anywhere, is this why?