recurring black screen on imac with sierra 10.12.6. smc and pram reset plus new instalation of 10.12.6 with total erase does not seem to have solved the problem. Although it does help at first. but the problem keeps on recurring. What could be the next step.
thanks in advance
pat
iMac, Mac OS X (10.7.2)
Any AV software can cause all sorts of unusual behavior - you have Avira installed. Please uninstall according to their directions and test.
Also, have you considered running the Apple hardware test?
Hallo Eric
the black screen has now occured multiple times. Even after a new start and resetting Pram and NVRAM
Using the OnyX feature Repair the access rights i get the following results:
volume_arg = /
Starting argv pass #2...
Processing files from package com.apple.pkg.EmbeddedOSFirmware...
Processing files from package com.apple.pkg.FirmwareUpdate...
Processing files from package com.apple.pkg.Essentials...
Permissions differ on "Library/Java", should be drwxr-xr-x , they are drwxrwxr-x .
Repaired "Library/Java".
Warning: SUID file 'System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent' has been modified and will not be repaired.
Permissions differ on "private/var/db/datadetectors", should be drwx--x--x , they are drwx-----x .
Unable to set owner & group on "private/var/db/datadetectors". Error 1: Operation not permitted
Unable to set permissions on "private/var/db/datadetectors". Error 1: Operation not permitted
Group differs on "private/var/db/diagnostics", should be 0, group is 80.
Repaired "private/var/db/diagnostics".
User differs on "private/var/db/displaypolicyd", should be 0, user is 244.
Group differs on "private/var/db/displaypolicyd", should be 0, group is 244.
Repaired "private/var/db/displaypolicyd".
Permissions differ on "private/var/db/lockdown", should be drwxrwxrwx , they are drwx------ .
Repaired "private/var/db/lockdown".
Processing files from package com.apple.pkg.BaseSystemResources...
Processed 438844 paths from 4 packages.
What is interesting is that now i have no black screen occuring.
What you ran repaired several files. Did you try the hardware test babowa posted?
I would uninstall Avira. It tends to interfere with the computer's operation while providing minimal to no benefit unless you work with Windows files.
hallo babowa
i ran the longer test and have no hardware problems. AV is also now uninstalled.
i posted eric the results after running OnyX repair- Since the access files have been repaired -no black screen. that has also in the past seemed to have solved the problem. but ....
Hallo Eric
it has happened again
here is the EtreCheck Report:
EtreCheck version: 3.4.4 (448)
Report generated 2017-09-03 16:53:34
Download EtreCheck from https://etrecheck.com
Runtime: 4:22
Performance: Good
Click the [Lookup] links for more information from Apple Support Communities.
Click the [Details] links for more information about that line.
Problem: Other problem
Description:
Black screen
Hardware Information: ⓘ
iMac (27-inch, Mid 2011)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac12,2
1 3,1 GHz Intel Core i5 (i5-2400) CPU: 4-core
8 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
2 GB DDR3 1067 MHz ok
BANK 1/DIMM0
2 GB DDR3 1067 MHz ok
BANK 0/DIMM1
2 GB DDR3 1067 MHz ok
BANK 1/DIMM1
2 GB DDR3 1067 MHz ok
Handoff/Airdrop2: not supported
Wireless: en1: 802.11 a/b/g/n
iCloud Quota: 5.00 GB available
Video Information: ⓘ
AMD Radeon HD 6970M - VRAM: 1024 MB
iMac 2560 x 1440
Disk Information: ⓘ
WDC WD1001FALS-403AA0 disk0: (1 TB) (Rotational)
[Show SMART report]
EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB
Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 999.35 GB (554.06 GB free)
Recovery HD (disk0s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5690H ()
USB Information: ⓘ
USB20Bus
hub_device
Apple Computer, Inc. IR Receiver
Apple Card Reader
USB20Bus
Apple Inc. FaceTime HD Camera (Built-in)
hub_device
Apple Inc. iPhone
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
System Software: ⓘ
macOS Sierra 10.12.6 (16G29) - Time since boot: about 3 hours
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/Library/Extensions
[loaded] com.avira.kext.FileAccessControl (1.2.5 - SDK 10.9) [Lookup]
System Launch Agents: ⓘ
[not loaded] 8 Apple tasks
[loaded] 181 Apple tasks
[running] 93 Apple tasks
System Launch Daemons: ⓘ
[not loaded] 42 Apple tasks
[loaded] 177 Apple tasks
[running] 97 Apple tasks
Launch Agents: ⓘ
[running] com.abbott.MASLaunchClient.FreeStyleLibre.plist (? 104c2c54 50387eb2 - installed 2017-08-31) [Lookup]
[loaded] com.avira.antivirus.general.agent.plist (? 94ca9a28 53a0d269 - installed 2017-09-03) [Lookup]
[loaded] com.avira.antivirus.gjallarhorn.plist (Avira Operations GmbH & Co. KG - installed 2017-08-28) [Lookup]
[loaded] com.avira.antivirus.notifications.agent.plist (? 8b13021d 53a0d269 - installed 2017-09-03) [Lookup]
[not loaded] com.avira.antivirus.odscan.default.plist (? d49b3db4 53a0d269 - installed 2017-09-03) [Lookup]
[loaded] com.avira.antivirus.scheduler.agent.plist (? 4b765eec 53a0d269 - installed 2017-09-03) [Lookup]
[running] com.avira.antivirus.systray.plist (? 9bf80dc3 103b2fc8 - installed 2017-09-03) [Lookup]
[loaded] com.avira.antivirus.telemetry.agent.plist (? a4625078 53a0d269 - installed 2017-09-03) [Lookup]
[loaded] com.avira.antivirus.update.default.plist (? 7dca32a5 53a0d269 - installed 2017-09-03) [Lookup]
[running] com.avira.helper.avstats.plist (? cf66ea88 55bb27c2 - installed 2017-08-28) [Lookup]
[loaded] com.avira.servicehub.license.plist (Avira Operations GmbH & Co. KG - installed 2017-08-09) [Lookup]
[loaded] com.avira.servicehub.license.poll.plist (Avira Operations GmbH & Co. KG - installed 2017-08-09) [Lookup]
[not loaded] com.teamviewer.teamviewer.plist (TeamViewer GmbH - installed 2017-08-16) [Lookup]
[not loaded] com.teamviewer.teamviewer_desktop.plist (TeamViewer GmbH - installed 2017-07-27) [Lookup]
Launch Daemons: ⓘ
[running] com.abbott.FreeStyleLibreMAS.plist (? 1fe9905 9c96252b - installed 2017-08-31) [Lookup]
[loaded] com.adobe.fpsaud.plist (? 2afb3af7 85012398 - installed 2017-07-25) [Lookup]
[loaded] com.avira.antivirus.dbcleaner.plist (? 223cb974 36f5da43 - installed 2017-09-03) [Lookup]
[running] com.avira.helper.watchdox.plist (? e7e538d1 97586304 - installed 2017-09-03) [Lookup]
[loaded] com.teamviewer.Helper.plist (TeamViewer GmbH - installed 2017-07-27) [Lookup]
[not loaded] com.teamviewer.teamviewer_service.plist (TeamViewer GmbH - installed 2017-08-16) [Lookup]
User Launch Agents: ⓘ
[loaded] com.skype.skype.shareagent.plist (Skype Communications S.a.r.l - installed 2017-08-14) [Lookup]
User Login Items: ⓘ
iTunesHelper Programm (Apple, Inc. - installed 2017-08-14)
(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ⓘ
FlashPlayer-10.6: 26.0.0.151 (installed 2017-08-27) [Lookup]
QuickTime Plugin: 7.7.3 (installed 2017-07-15)
Flash Player: 26.0.0.151 (installed 2017-08-27) [Lookup]
3rd Party Preference Panes: ⓘ
Flash Player (installed 2017-07-25) [Lookup]
Time Machine: ⓘ
Time Machine not configured!
Top Processes by CPU: ⓘ
11% plugin-container
3% WindowServer
3% kernel_task
2% firefox
2% thunderbird
Top Processes by Memory: ⓘ
952 MB firefox
657 MB kernel_task
546 MB savapi
448 MB plugin-container
443 MB iTunes
Top Processes by Network Use: ⓘ
Input Output Process name
9 MB 81 KB firefox
82 KB 31 KB mDNSResponder
9 KB 15 KB apsd
4 KB 4 KB ntpd
3 KB 2 KB netbiosd
Top Processes by Energy Use: ⓘ
15.84 plugin-container
5.74 WindowServer
4.28 coreaudiod
2.86 firefox
Virtual Memory Information: ⓘ
2.05 GB Available RAM
252 MB Free RAM
5.95 GB Used RAM
1.81 GB Cached files
0 B Swap Used
Software installs: ⓘ
TeamViewer: 12.0.81460 (installed 2017-08-16)
Adobe Flash Player: (installed 2017-08-27)
Avira Antivirus: (installed 2017-08-28)
The Unarchiver: 3.11.1 (installed 2017-08-31)
Install information may not be complete.
Diagnostics Information: ⓘ
2017-09-03 13:41:44 Last shutdown cause: 0 - Power loss
2017-08-31 18:18:43 VLC.app Crash [Open]
I-tunes, firefox, and mediahuman were on. there was a video on youtube playing and an I-phone was connected. i had to use the start butten to get the screen back on. The music was playing the whole time.
pat
Hallo Eric
yes i have both the short and the long versions. no problems as well as no black screens since then.
Good.
Try running this program in your normal account, then copy and paste the output in a reply. The program was created by etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy Report” and then paste into a reply. This will show what is running on your computer. No personal information is shown.
EtreCheck version: 3.4.4 (448)
Report generated 2017-08-28 10:11:38
Download EtreCheck from https://etrecheck.com
Runtime: 1:58
Performance: Excellent
Click the [Lookup] links for more information from Apple Support Communities.
Click the [Details] links for more information about that line.
Problem: Other problem
Description:
Recurring black screen
Hardware Information: ⓘ
iMac (27-inch, Mid 2011)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac12,2
1 3,1 GHz Intel Core i5 (i5-2400) CPU: 4-core
8 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
2 GB DDR3 1067 MHz ok
BANK 1/DIMM0
2 GB DDR3 1067 MHz ok
BANK 0/DIMM1
2 GB DDR3 1067 MHz ok
BANK 1/DIMM1
2 GB DDR3 1067 MHz ok
Handoff/Airdrop2: not supported
Wireless: en1: 802.11 a/b/g/n
iCloud Quota: 5.00 GB available
Video Information: ⓘ
AMD Radeon HD 6970M - VRAM: 1024 MB
iMac 2560 x 1440
Disk Information: ⓘ
WDC WD1001FALS-403AA0 disk0: (1 TB) (Rotational)
[Show SMART report]
EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB
Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 999.35 GB (777.74 GB free)
Recovery HD (disk0s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5690H ()
USB Information: ⓘ
USB20Bus
Apple Inc. FaceTime HD Camera (Built-in)
hub_device
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
USB20Bus
hub_device
Apple Computer, Inc. IR Receiver
Apple Card Reader
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
System Software: ⓘ
macOS Sierra 10.12.6 (16G29) - Time since boot: about one hour
Gatekeeper: ⓘ
Mac App Store and identified developers
System Launch Agents: ⓘ
[not loaded] 8 Apple tasks
[loaded] 183 Apple tasks
[running] 91 Apple tasks
System Launch Daemons: ⓘ
[not loaded] 42 Apple tasks
[loaded] 179 Apple tasks
[running] 95 Apple tasks
Launch Agents: ⓘ
[not loaded] com.teamviewer.teamviewer.plist (TeamViewer GmbH - installed 2017-08-16) [Lookup]
[not loaded] com.teamviewer.teamviewer_desktop.plist (TeamViewer GmbH - installed 2017-07-27) [Lookup]
Launch Daemons: ⓘ
[loaded] com.adobe.fpsaud.plist (? 2afb3af7 85012398 - installed 2017-07-25) [Lookup]
[loaded] com.teamviewer.Helper.plist (TeamViewer GmbH - installed 2017-07-27) [Lookup]
[not loaded] com.teamviewer.teamviewer_service.plist (TeamViewer GmbH - installed 2017-08-16) [Lookup]
User Launch Agents: ⓘ
[loaded] com.skype.skype.shareagent.plist (Skype Communications S.a.r.l - installed 2017-08-14) [Lookup]
User Login Items: ⓘ
iTunesHelper Programm (Apple, Inc. - installed 2017-08-14)
(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ⓘ
FlashPlayer-10.6: 26.0.0.151 (installed 2017-08-27) [Lookup]
QuickTime Plugin: 7.7.3 (installed 2017-07-15)
Flash Player: 26.0.0.151 (installed 2017-08-27) [Lookup]
3rd Party Preference Panes: ⓘ
Flash Player (installed 2017-07-25) [Lookup]
Time Machine: ⓘ
Time Machine not configured!
Top Processes by CPU: ⓘ
9% mdworker
8% mdworker
3% mds
2% WindowServer
1% trustd
Top Processes by Memory: ⓘ
878 MB firefox
557 MB kernel_task
367 MB thunderbird
258 MB plugin-container
192 MB mds_stores
Top Processes by Network Use: ⓘ
Input Output Process name
8 KB 22 KB firefox
11 KB 11 KB mDNSResponder
8 KB 12 KB apsd
2 KB 2 KB ntpd
2 KB 1 KB netbiosd
Top Processes by Energy Use: ⓘ
5.62 WindowServer
0.32 watchdogd
0.04 thunderbird
0.04 launchd
Virtual Memory Information: ⓘ
3.78 GB Available RAM
1.48 GB Free RAM
4.22 GB Used RAM
2.29 GB Cached files
0 B Swap Used
Software installs: ⓘ
TeamViewer: 12.0.81460 (installed 2017-08-16)
Adobe Flash Player: (installed 2017-08-27)
Install information may not be complete.
Diagnostics Information: ⓘ
2017-08-28 08:57:30 Last shutdown cause: 0 - Power loss
Hallo Eric
thank you for your reply. i have reinstalled macosx Sierra 10.12.6. again After saving all my data to a external harddisk. It seemed as if the problem with the black screen was indeed over and done with. (About a week) But as i was copying my music back on to the mac ( external Harddrive with usb connection ) and online the blackscreen was there multiple times. each time i could get it back on with the on butten beening pressed multiple times. After disconnecting the drive and restarting i was able to continue to copy the data on to the mac. I have left the mac osx as origional as possible not making many preference changes. A few programs have been added. For whatever reasons it maybe happening it is not happing now. whow, if you have any ideas let me know i appreciate it.
thanks pat
You are welcome. Clarification questions - it happened again when you were copying your music back? iTunes Library? I don't see anything in the report that should be causing a problem.
Hallo eric
yes but not to itunes library but to my own music file. As of today no reaccurance of the problem. i will post if and when it reaccures. is there any way i may be able to doccument it?
Just note exactly what you were doing when it happened.
recurring black screen on macOS Sierra 10.12.6 imac but the computer is still working. I have tried smc and pram reset plus siera 10.12.6 reinstall with erase all before hand.
