those who have the MacBook Pro MID 2012 Retina with 650M....Im looking at a few options for the graphics anomaly fixes. The problem has to do with the fact that almost all of OpenGL has been pulled from Mac OS and the remaining code is legacy or depreciated so its the reason we are getting the graphics anomollys. Honestly I don't think it will be fixable in safari or any of the other applications outside of maybe the Manu bar and finder. Unfortunately apple has coded the widgets all in Metal so that's a no go either. Stay tuned.
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
macOS 11 Big Sur on Unsupported Macs Thread
- Thread starter dosdude1
- WikiPost WikiPost
- Start date
-
- Tags
- 10.16 macos unsupported
- Sort by reaction score
- Status
I'm not seeing any anomalies. What are you seeing?
Are you using the Nvidia card - that seems to be Big Sur's default choice together with no graphics switching.
You can get the Intel card to work as the default (and then graphics switching does work) by running the terminal command
sudo launchctl stop com.apple.displaypolicydBut this has to be run after every reboot.
Or at least on my mid 2012 rMBP
Take a look at the pictures attached to this post. Sometimes you get black or white blocks. Have seen this with Catalina before, too. Mostly in Safari (because this is the app most time used) but other reported this using photos or maps or...
Thanks.
I get none of that on mine at all.
My mid 2012 rMBP is dual booted with Catalina and BS and I have no such glitches on either OS.
Curious.
Yeah its only on the NVIDIA......it doesn't happen all the time. It defiantly not hardware the Mid 2012 was susceptible to "chipcreeK" were the graphics chip would literally come off or loosen from the board causing what we are experiencing but I had my chip replaced last year because apple had a program going to replace the board free of charge. These are entirely software based and metal is the culprit.
Ive modified some of the kexts in high Sierra and they seem to have fixed the issues so far but I want to test before I release.
Yes mine had a new logic board some time ago.
It also had a new screen because it creaked so much.
Still going though, nearly 8 years later and running BS just fine
I have 11.0.1 (20B29) running on almost identical MBPr (has 8GB ram). I don't see this green square graphics problem. I have some suggestions:
1. Reapply the installer directly on top of your 11.0.1 installation. Barry suggests using the 'install-setvars.sh -e' to set SIP and ARV security.
2. If you have 11.0.1 (20B50) installed, I'd recommend using (20B29).
3. Get and install a copy of gfxCardStatus, v2.4.4i. Make sure displaypolicyd is not disabled and set gfxCardStatus on 'dynamic switching'. Note edit below!
4. In Safari select Develop menu-->Experimental Features. Make sure 'VP9 decoder', 'VP9 SW Decoder on Battery', and 'webRTC VP9 codec' are checked.
Edit: my installation now requires disabling displaypolicyd for dynamic switching to work! Sorry for the confusion.
Last edited:
I can't get no 3 to work like yours.
If I run gfx and try to switch to Integrated only I get this
And even though Dynamic switching is selected by default it won't actually switch at all. It just leaves the Nvidia card powered up and in use.
The only way I can get graphics switching to work is by stopping the displaypolicyd process in the terminal.
That then makes the system use the Intel graphics until I run something more demanding when the Nvidia card will fire up.
Thanks buckrock, I will try what you suggest.
I didn't enable SIP and ARV before otherwise Skype won't let me me use a "virtual" webcam like Iriun Webcam or Epoccam.
I can confirm that displaypolicyd running seems to prevent from gpu dynamic switching on BS on this machine. Anyway stopping this process won't made any changes in my case scenario, since i'm using the computer in clamshell mode mostly: connecting an external display forces the sistem to use the discrete gpu, whether displaypolicyd is running or not.
I'm trying to install Big Sur on my mid-2012 MacBook Pro (dual GPU) using OpenCore Legacy Patcher v0.0.6 from @khronokernel and I'm having the exact same issue that dennes544 reported on Github after booting from the USB stick and selecting the EFI Boot Option:
Is it a bug with the patcher or am I missing something?
Is it a bug with the patcher or am I missing something?
you can run a simple script made by the automator to run this command silently at each reboot / startup.
Many thanks for your speedy reply. I downloaded it and installed BS 11.1 beta 1 everything went well but alas even though my wifi was on it wasn’t working. So I’m going back the general release version. However on that release the tv app won’t play any of my movies. Due to some kind of file protection. Everything works fine in Mojave with my movies just not in big sur. Any suggestions?
Just doing a follow up. After a clean install both top bar loading and drift lag are gone. I consider BS is running 100% on my Mac mini 2012.
Okay, now my displaypolicyd is preventing dynamic switching too! Oh well; I can always disable that dependency. Sorry for the confusion guys.
Right now it's a very hit-or-miss operation, so it can't really be properly done
With Big Sur out, how are the stability and usability experiences of cMP users who've taken the Big Sur plunge?
I'm still on Mojave due to legacy 32-bit applications but I'm ready to make the jump on my main cMP.
Is Big Sur usable, stable, and responsive enough for a 2012 cMP dual 3.46?
I'm still on Mojave due to legacy 32-bit applications but I'm ready to make the jump on my main cMP.
Is Big Sur usable, stable, and responsive enough for a 2012 cMP dual 3.46?
You don't need a script, disabling the "Run at load" in the .plist file will do the job, see for location in the screenshots below.
I installed big sur on top of catalina using bensova's patcher. I do no see any hit in performance compared to catalina but I do get randon application freezes, be it mail, messages, facetime or others. Safari is slightly slower to start.
Hmm... Those freezes really concern me, especially since it involves "shrinkwrapped" OS X apps.
On my other cMP which is running Catalina via DosDude, it suffers from sudden restarts, but I believe that has everything to do with a certain Java application that is running that uses up a lot of memory.
I may just step up to Catalina for now, unless others can chime in with more positive experiences (since each configuration and how they are used results in different usability and stability experiences).
So:
Code:
<key>RunAtLoad</key> <false/>
<key>RunAtLoad</key> <true/>
@Ausdauersportler I had similar art effects, black white blocks, also while using photos after that system hang and to black screen. This started with bigsur and got visible also on high sierra and catalina volumes.
you know the whole story after that. Now waiting till I get a new graphic card.
But my curiosity is getting best of me. Why sometimes the imac boots up and works well for a while and then goes into this art effect and to black screen and boot chime sometimes.
if the graphic card was bad nothing would be displayed right. Its an unusual case. Scratching my head lol.
Hi @Auggie
I have a cMp5,1 2 x 3.46MHz (stock BT/Wifi card replaced by BCM94360CD).
I installed Big Sur (20B28) on NVMe PCI blade on 11/11/2020 with Barry's Patcher (clean installation then migration of my data from Mojave) then updated to (20B50) on 11/20/2020.
I use it for my job 10 to 15 hours a day and everything works perfectly including sleep (I not turned it off or restarted since over a week).