I installed beta 2 and then experienced the graphic issues. I restarted and booted into safe mode then restarted again and the graphic issues disappeared.
Could it be a cache issue?
Thoughts
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**severe Graphic issues using beta 2 on Mac Pro Late 2013 with Thunderbolt display
- Thread starter chama98
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I installed beta 2 and then experienced the graphic issues. I restarted and booted into safe mode then restarted again and the graphic issues disappeared.
Could it be a cache issue?
Thoughts
Looks like hardware to be honest. Do you have the D500 or D700? There's an extended repair program for them.
No it's not hardware issue is a software issue.
Hardware test came back ok. Both Apple hardware test and other 'professional' hardware tests.
OK, just does very much resemble hardware. Regardless, do you have the D500/700?
Does the issue also occur on 10.11.5?
Okay, if that's the case it's possibly a driver issue with either Thunderbolt display or D300 on the Sierra build.
You can try the normal PRAM/SMC resets, plus testing through a new administrator user account. If the issue persists, report the bug & roll back to El Cap.
Well funny you should say that. I am doing this now.
However a pram/smc reset is not necessary. It's a cache issue I am sure of it. Because as soon as I rebooted into safe mode the error had gone. To be sure I restarted again normally and everything was back to normal. However I have reported it including the video I took and photos of the issue.
Will wait and see what happens!
Tempted to carry on with testing though.
Have you tried a new user account? And SMC/PRAM doesn't take long at all so it's worth a shot, even if you feel it won't be relevant to the problem you're having.