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Black screen during boot process (iMac MacOS 10.13.1)

ZeeDD

ZeeDD

macrumors regular
Original poster
Oct 9, 2012
169
30
Hi guys,

I've just note a new "problem" with my iMac late 2012 and MacOs 10.13.1:

During boot process, I can see the apple boot screen and the black progress bar. When the black bar reach about 2/3 a black screen appears during a few seconds (about 10 seconds I think...) and then the boot process continue without any problem (with the "grey part" of the progress bar).

I've tried to reset SMC and PRAM, SOS my SSD with diskutil and onyx app, without success...

Any help ?

Thanks

Franck
 
Last edited:
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ZeeDD said:
Hi guys,

I've just note a new "problem" with my iMac late 2012 and MacOs 10.13.1:

During boot process, I can see the apple boot screen and the black progress bar. When the black bar reach about 2/3 a black screen appears during a few seconds (about 10 seconds I think...) and then the boot process continue without any problem (with the "grey part" of the progress bar).

I've tried to reset SMC and PRAM, SOS my SSD with diskutil and onyx app, without success...

Any help ?

Thanks

Franck
Click to expand...

Sounds like it's just the transition from EFI to the OS driver.
 
Thanks for your answer !

I’ve never seen this black transition screen until now... and with a SSD drive, 10 seconds is a bit too long I think...

Franck
 
ZeeDD - Running late 2012 iMac Quad-core 2.7 Ghz, 1 TB Rotational HD, 8 GB RAM and get that same "blink out" and resume on both an upgrade from 10.12.6 to 10.13.1 and a Clean install of 10.13.1. Have done the same as you, PRAM and SMC Reset, DU of internal HD from bootable install disk of 10.13.1 and still getting the wink out and resume.
As previous said by h9826790 must be transition from EFI to OS driver.
 
Marcopolo53 said:
ZeeDD - Running late 2012 iMac Quad-core 2.7 Ghz, 1 TB Rotational HD, 8 GB RAM and get that same "blink out" and resume on both an upgrade from 10.12.6 to 10.13.1 and a Clean install of 10.13.1. Have done the same as you, PRAM and SMC Reset, DU of internal HD from bootable install disk of 10.13.1 and still getting the wink out and resume.
As previous said by h9826790 must be transition from EFI to OS driver.
Click to expand...

Hi Marcopolo,

Thanks a lot for your answer. I’m wondering if this black screen is related to 10.13.1 update... BTW, my MacBook air mid 2013 doesn’t have this symptom.... even if it also runs 10.13.1.
 
Last edited:
ZeeDD - think not because of 10.13.1. Same behaviour on 10.13.0 and also with 10.13.0 Supplemental. This behaviour seems to happen with older iMac with Nvidia Video cards? Though, never had this issue on 10.12.6 so . . . . ?
Like yourself, do not have this issue with MacBook Retina 12 inch.
Maybe Apple with fix with 10.13.2 or later !!????
 
Marcopolo53 said:
ZeeDD - think not because of 10.13.1. Same behaviour on 10.13.0 and also with 10.13.0 Supplemental. This behaviour seems to happen with older iMac with Nvidia Video cards? Though, never had this issue on 10.12.6 so . . . . ?
Like yourself, do not have this issue with MacBook Retina 12 inch.
Maybe Apple with fix with 10.13.2 or later !!????
Click to expand...

Interesting, thanks !

I will test a boot sequence in Verbose mode to look at what happens during this 10 seconds
 
am very interested. have looked in file system repair log and notice fsck error and must fsck -I (freeze to run fsck) that lasts xx secs but in verbose you are going should see more details. See below copy / paste of said log entries
Last Modified: 2017-11-20, 12:41 PM

Recent Contents:

/dev/rdisk2s2: fsck_hfs started at Mon Nov 20 09:40:01 2017

/dev/rdisk2s2: /dev/rdisk2s2: ** /dev/rdisk2s2 (NO WRITE)

/dev/rdisk2s2: Executing fsck_hfs (version hfs-407.1.3).

QUICKCHECK ONLY; FILESYSTEM CLEAN

/dev/rdisk2s2: fsck_hfs completed at Mon Nov 20 09:40:01 2017

/dev/rdisk3: fsck_hfs started at Mon Nov 20 09:41:20 2017

/dev/rdisk3: /dev/rdisk3: ERROR: volume /private/var/setup is mounted with write access. Re-run with (-l) to freeze volume.

/dev/rdisk3: fsck_hfs completed at Mon Nov 20 09:41:20 2017
 
ZeeDD said:
Interesting, thanks !

I will test a boot sequence in Verbose mode to look at what happens during this 10 seconds
Click to expand...

I tried in Verbose mode. Things go by soooooo fast. Next to impossible to see all that is happening. Though, once UI is loaded to Log-in screen, there is not that Black screen (wink out and back loading) before totally loaded. May try doing video of Verbose screen and see if it can be slowed down to read all the messages.
 
Have given up on HS and returned to Sierra 10.12.6 on iMac Late 2012 rotational HD.
As expected, boot up time now is 44 seconds vs 85 seconds on HS 10.13.1 and NO BLACK SCREEN during the boot up process on 10.12.6.
 
Good evening.

It is an issue with the embedded Apple nVidia drivers which are faulty. Please use the latest nVidia web drivers from nvidia.com. It will also eliminate the issue of slow UI in High Sierra. I tested this setup and it worked perfectly on a Late 2013 15" MacbookPro. The issue is gone.

Please be advised that you must upgrade the nVidia drivers every time you upgrade the OS. Every release of nVidia web drivers works ONLY with the macOS version it was designed for.

macOS 10.13.1
http://www.nvidia.co.uk/content/Dri...-378.10.10.10.20.107.pkg&lang=uk&type=GeForce

macOS 10.13.0
http://www.nvidia.co.uk/content/Dri...-378.10.10.10.15.121.pkg&lang=uk&type=GeForce

By the way, I tested the nVidia web drivers on a mid 2010 13" MacbookPro with GeForce 320M and it worked like a charm.

Catalin
 
cmv010101 said:
Good evening.

It is an issue with the embedded Apple nVidia drivers which are faulty. Please use the latest nVidia web drivers from nvidia.com. It will also eliminate the issue of slow UI in High Sierra. I tested this setup and it worked perfectly on a Late 2013 15" MacbookPro. The issue is gone.

Please be advised that you must upgrade the nVidia drivers every time you upgrade the OS. Every release of nVidia web drivers works ONLY with the macOS version it was designed for.

macOS 10.13.1
http://www.nvidia.co.uk/content/Dri...-378.10.10.10.20.107.pkg&lang=uk&type=GeForce

macOS 10.13.0
http://www.nvidia.co.uk/content/Dri...-378.10.10.10.15.121.pkg&lang=uk&type=GeForce

By the way, I tested the nVidia web drivers on a mid 2010 13" MacbookPro with GeForce 320M and it worked like a charm.

Catalin
Click to expand...

Just some extra info, the web driver is bound to a specific build number MacOS, not just the OS version. e.g. the Supplemental didn't change the OS version, but required a new Nvidia web driver.
 
Yes, our issue might be Nvidia Drivers in 10.13.1 are not compatible or suspect "dsmos arriving" during verbose booting but never "arrives" like in 10.12.6 verbose mode. The time to decrypt the dsmos module is taking too long and so the black screen appears and normal boot process is longer than it should be.
 
Hopefully 10.13.2 is coming soon and will address this and others issues. Right now, reverted to 10.12.6 and holding there until next HS update
 
Marcopolo53 said:
Yes, our issue might be Nvidia Drivers in 10.13.1 are not compatible or suspect "dsmos arriving" during verbose booting but never "arrives" like in 10.12.6 verbose mode. The time to decrypt the dsmos module is taking too long and so the black screen appears and normal boot process is longer than it should be.
Click to expand...
Have since upgraded from clean install 10.12.6 with all updates and then applied HS 10.13.2 and the wink out and back during boot up has vanished.
Guess Apple has fixed this issue. Have been running 10.13.2 for 3 days and no issue thus far
 
I have a cMP 5,1 with an MVC flashed GTX 1080. The issue on the iMac seems to be with those that have Nvidia GPUs. On my machine I have about a 3 second black screen during boot, about ⅔ of the way thru the process. 10 seconds seems excessive. And, it is the transition between the EFI to the graphics driver. I use Nvidia's Web Drivers. I'm on 10.13.2, but I have had this issue since I got my 1080 back in OS 10.12. See this thread:

https://forums.macrumors.com/threads/my-mvc-flashed-gtx-1080.2043192/

Lou
 
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