2011 iMac Blue Screen

Worth adding that it would occasionally flicker once or twice as well.

Just now it went absolutely bat-**** crazy flickering all over the place... it went grey with the various gradations of grey going up and down the screen and then it came back again. I had not long started up Photoshop CS6.

I had terrible trouble trying to get this reply to send on Safari. Kept trying and trying... then it went crazy again and went orange and stayed there.

Usually it just goes straight to a colour, not jump around.

The pic shows the effect but I've had to zoom in to get it to size.

As an update I unplugged it for a while and restarted it and it seemed ok if a little slow. Fonts I had installed the day before were missing and nothing seemed to add up recent file wise. Went to go into time machine and then I got a completely brown/orange screen!

Here is the Etrecheck report:

EtreCheck version: 4.2.1 (4C020)

Report generated: 2018-04-16 22:02:22

Download EtreCheck from https://etrecheck.com

Runtime: 10:58

Performance: Poor

Problem: Other problem

Description:

Encountered a blue screen of death 3 times over the last 2 days. Also had a brown screen of death today.

Major Issues:

Anything that appears on this list needs immediate attention.

Old operating system - Old operating system versions no longer receive security updates.

Poor performance - EtreCheck report took over 10 minutes to run. This is very unusual.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Upgradeable RAM - This machine has upgradeable RAM that would help its performance.

Apps crashing - There have been numerous app crashes.

Clean up - There are orphan files that could be removed.

Unsigned files - There is unsigned software installed. They appear to be legitimate but should be reviewed.

Hardware Information:

iMac (27-inch, Mid 2011)

iMac Model: iMac12,2

1 3.1 GHz Intel Core i5 (i5-2400) CPU: 4-core

4 GB RAM Upgradeable

BANK 0/DIMM0 - 2 GB DDR3 1333 ok

BANK 1/DIMM0 - 2 GB DDR3 1333 ok

BANK 0/DIMM1 - Empty

BANK 1/DIMM1 - Empty

Video Information:

AMD Radeon HD 6970M - VRAM: 1024 MB

iMac 2560 x 1440

Drives:

disk0 - ST31000528AS 1.00 TB (Mechanical)

Internal SATA 3 Gigabit Serial ATA

disk0s1 - EFI () [EFI] 210 MB

disk0s2 - Macintosh HD (Journaled HFS+) 999.35 GB

disk0s3 - Recovery HD () [Recovery] 650 MB

disk1 - BUFFALO HD-PVU2 Media 500.11 GB

External USB

disk3 - Apple sparse bundle disk image Media 2.00 TB (Disk Image)

External Disk Image

Mounted Volumes:

disk0s2 - Macintosh HD 999.35 GB (207.62 GB free)

Journaled HFS+

Mount point: /

disk1s1 - D********D 500.09 GB (500.08 GB free)

ExFAT

Mount point: /Volumes/D********D

disk3s2 - T******************s 2.00 TB (1.26 TB free)

Case-Sensitive Journaled HFS+

Mount point: /Volumes/T******************s

Network:

Interface usbmodemfa122: SAMSUNG_Android

Interface SAMSUNG_MDM: SAMSUNG Modem

Interface Bluetooth-Modem: Bluetooth DUN

Interface en0: Ethernet

One IPv4 address

Interface fw0: FireWire

Interface en1: Wi-Fi

802.11 a/b/g/n

One IPv4 address

Interface en5: iPhone

Interface en2: Bluetooth PAN

System Software:

OS X Mavericks 10.9.5 (13F1911)

Time since boot: About 2 hours

System Load: 1.41 (1 min ago) 1.28 (5 min ago) 1.32 (15 min ago)

Security:

Unsigned Files:

Launchd: /Library/LaunchDaemons/com.avast.uninstall.plist

Executable: /Library/Application Support/Avast/hub/autouninstall.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.avast.userinit.plist

Executable: /Library/Application Support/Avast/hub/userinit.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.adobe.SwitchBoard.plist

Executable: /Library/Application Support/Adobe/SwitchBoard/SwitchBoard.app/Contents/MacOS/launch.switchboard

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.init.plist

Executable: /Library/Application Support/Avast/hub/init.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.adobe.CS5ServiceManager.plist

Executable: /Library/Application Support/Adobe/CS5ServiceManager/CS5ServiceManager.app/Contents/MacOS/CS5Service Manager -launchedbylogin

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.osx.secureline.uninstall.plist

Executable: /Library/Application Support/AvastSecureLine/hub/autouninstall.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.update.plist

Executable: /Library/Application Support/Avast/components/update/update.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.osx.secureline.init.plist

Executable: /Library/Application Support/AvastSecureLine/hub/init.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.osx.secureline.update.plist

Executable: /Library/Application Support/AvastSecureLine/components/update/update.sh

Details: Exact match found in the whitelist - probably OK

Launchd: ~/Library/LaunchAgents/com.avast.osx.secureline.home.userinit.plist

Executable: /Users/***/Library/Application Support/AvastSecureLine/hub/userinit.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.wacom.pentablet.plist

Executable: /Library/Application Support/Tablet/PenTabletSpringboard

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.divx.dms.agent.plist

Executable: /Library/Application Support/DivX/DivXMediaServer.app/Contents/MacOS/DivXMediaServer

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.avast.osx.secureline.userinit.plist

Executable: /Library/Application Support/AvastSecureLine/hub/userinit.sh

Details: Exact match found in the whitelist - probably OK

Kernel Extensions:

/Library/Application Support/Avast/components/fileshield/signed

[Loaded] AvastFileShield.kext (AVAST Software a.s., 4.0.0 - SDK 10.12)

/Library/Application Support/Avast/components/proxy/signed

[Loaded] AvastPacketForwarder.kext (AVAST Software a.s., 2.1 - SDK 10.12)

/System/Library/Extensions

[Not Loaded] ssuddrv.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

[Not Loaded] Pen Tablet.kext (Pen Tablet 5.2.6-3)

[Not Loaded] Wacom Tablet.kext (Wacom Tablet 6.3.4-3 - SDK 10.8)

/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns

[Not Loaded] ssudmdmcontrol.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

[Not Loaded] ssudmdmdata.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

[Not Loaded] ssudmtp.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.5)

[Not Loaded] ssudserial.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

System Launch Agents:

System Launch Daemons:

Launch Agents:

Launch Daemons:

User Launch Agents:

User Login Items:

iTunesHelper Application (? - installed 2017-08-13)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (?

(/Applications/Dropbox.app)

fuspredownloader Application (?

(/Users/***/Library/Application Support/.FUS/fuspredownloader.app)

BambooCore Application (?

(/Library/Application Support/Wacom/BambooCore.app)

6H4HRTU5E3.com.avast.osx.secureline.avastsecurelinehelper SMLoginItem (AVAST Software a.s. - installed 2018-03-21)

(/Applications/AvastSecureLine.app/Contents/Library/LoginItems/6H4HRTU5E3.com.a vast.osx.secureline.avastsecurelinehelper.app)

PhotoStreamAgent SMLoginItem (Mac App Store - installed 2014-05-29)

(/Applications/iPhoto.app/Contents/Library/LoginItems/PhotoStreamAgent.app)

com.adobe.SwitchBoard.monitor.plist MachInit (?

(/etc/mach_init_per_user.d/com.adobe.SwitchBoard.monitor.plist)

Internet Plug-ins:

WacomNetscape: 2.1.0-1 (installed 2016-07-18)

OVSHelper: 1.1 (installed 2016-01-10)

Default Browser: 537 (installed 2014-10-12)

AdobeExManDetect: AdobeExManDetect 1.1.0.0 (installed 2017-03-17)

OfficeLiveBrowserPlugin: 12.3.5 (installed 2013-01-28)

WacomTabletPlugin: WacomTabletPlugin 2.1.0.2 (installed 2012-09-22)

AdobeAAMDetect: AdobeAAMDetect 1.0.0.0 (installed 2017-03-17)

FlashPlayer-10.6: 29.0.0.140 (installed 2018-04-10)

DivX Web Player: 3.5.0.5 (installed 2015-12-17)

Flash Player: 29.0.0.140 (installed 2018-04-10)

QuickTime Plugin: 7.7.3 (installed 2016-11-19)

CANONiMAGEGATEWAYDL: 3.1.0.2 (installed 2009-09-09)

JavaAppletPlugin: 14.9.0 (installed 2016-08-23)

User Internet Plug-ins:

RealPlayer Plugin: (installed 2013-05-21)

Safari Extensions:

3rd Party Preference Panes:

PenTablet (installed 2012-03-19)

Flash Player (installed 2018-03-27)

WacomTablet (installed 2012-09-22)

Time Machine:

Skip System Files:

Mobile backups:

Auto backup: Yes

Volumes being backed up:

Macintosh HD: Disk size: 999.35 GB - Disk used: 791.73 GB

Destinations:

D******************e [Network] (Last used)

Total size: 2.00 TB

Total number of backups: 24

Oldest backup: 2018-01-02 02:17:29

Last backup: 2018-04-16 17:12:12

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Energy Use:

Virtual Memory Information:

Clean up:

~/Library/LaunchAgents/com.avast.home.userinit.plist

/Users/***/Library/Application Support/Avast/hub/userinit.sh

Executable not found

~/Library/LaunchAgents/c******************************************a@m*********** ********************t

/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewor k/Versions/A/Support/CSConfigDotMacCert

Executable not found

Diagnostics Information (past 7 days):

2018-04-16 17:28:50 iPhoto.app Crash (4 times)

2018-04-16 16:55:01 WacomTabletDriver.app Crash (10 times)

2018-04-16 12:37:16 PenTabletDriver.app Crash (9 times)

2018-04-12 11:22:29 Bamboo Dock.app Crash (3 times)

End of report

Thanks - done. It happened again today whilst streaming music from the iMac to a Yamaha AV Amp, whilst also working in iPhoto. The screen went to a completely muddy brown colour (with various gradations of this brown running vertically - this is the same regardless of the screen colour). The computer carried on streaming the music track it was playing but nothing else would work. When it came to the end of the track no more music played.

I restarted and followed your instructions to remove Avast and I ran Etrecheck again. Performance wise it's much better although it had just been restarted

The latest Etrecheck report is below.

EtreCheck version: 4.2.1 (4C020)

Report generated: 2018-04-19 12:53:33

Download EtreCheck from https://etrecheck.com

Runtime: 4:42

Performance: Good

Problem: Other problem

Description:

The computer will randomly display a coloured screen sometimes. I have to restart it to get it back. Today while playing music through the AV amp, (also also working in iPhoto) it froze again with a muddy brown screen. The computer carried on streaming the track that was playing even with the screen as it was. At the end of the track it didn’t play any more songs. I restarted. I have now uninstalled Avast security also to see if that helps.

Major Issues:

Anything that appears on this list needs immediate attention.

Old operating system - Old operating system versions no longer receive security updates.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Upgradeable RAM - This machine has upgradeable RAM that would help its performance.

Apps crashing - There have been numerous app crashes.

Clean up - There are orphan files that could be removed.

Unsigned files - There is unsigned software installed. They appear to be legitimate but should be reviewed.

Hardware Information:

iMac (27-inch, Mid 2011)

iMac Model: iMac12,2

1 3.1 GHz Intel Core i5 (i5-2400) CPU: 4-core

4 GB RAM Upgradeable

BANK 0/DIMM0 - 2 GB DDR3 1333 ok

BANK 1/DIMM0 - 2 GB DDR3 1333 ok

BANK 0/DIMM1 - Empty

BANK 1/DIMM1 - Empty

Video Information:

AMD Radeon HD 6970M - VRAM: 1024 MB

iMac 2560 x 1440

Drives:

disk0 - ST31000528AS 1.00 TB (Mechanical)

Internal SATA 3 Gigabit Serial ATA

disk0s1 - EFI () [EFI] 210 MB

disk0s2 - Macintosh HD (Journaled HFS+) 999.35 GB

disk0s3 - Recovery HD () [Recovery] 650 MB

disk1 - APPLE SD Card Reader Media 31.91 GB

Internal USB

Mounted Volumes:

disk0s2 - Macintosh HD 999.35 GB (202.77 GB free)

Journaled HFS+

Mount point: /

disk1s1 - N*****E 31.90 GB (18.88 GB free)

MS-DOS FAT32

Mount point: /Volumes/N*****E

Network:

Interface usbmodemfa122: SAMSUNG_Android

Interface SAMSUNG_MDM: SAMSUNG Modem

Interface Bluetooth-Modem: Bluetooth DUN

Interface en0: Ethernet

Interface fw0: FireWire

Interface en1: Wi-Fi

802.11 a/b/g/n

One IPv4 address

Interface en5: iPhone

Interface en2: Bluetooth PAN

System Software:

OS X Mavericks 10.9.5 (13F1911)

Time since boot: Less than an hour

System Load: 1.13 (1 min ago) 0.66 (5 min ago) 0.52 (15 min ago)

Security:

Unsigned Files:

Launchd: /Library/LaunchAgents/com.wacom.pentablet.plist

Executable: /Library/Application Support/Tablet/PenTabletSpringboard

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.adobe.SwitchBoard.plist

Executable: /Library/Application Support/Adobe/SwitchBoard/SwitchBoard.app/Contents/MacOS/launch.switchboard

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.divx.dms.agent.plist

Executable: /Library/Application Support/DivX/DivXMediaServer.app/Contents/MacOS/DivXMediaServer

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.adobe.CS5ServiceManager.plist

Executable: /Library/Application Support/Adobe/CS5ServiceManager/CS5ServiceManager.app/Contents/MacOS/CS5Service Manager -launchedbylogin

Details: Exact match found in the whitelist - probably OK

Kernel Extensions:

/System/Library/Extensions

[Not Loaded] ssuddrv.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

[Not Loaded] Pen Tablet.kext (Pen Tablet 5.2.6-3)

[Not Loaded] Wacom Tablet.kext (Wacom Tablet 6.3.4-3 - SDK 10.8)

/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns

[Not Loaded] ssudmdmcontrol.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

[Not Loaded] ssudmdmdata.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

[Not Loaded] ssudmtp.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.5)

[Not Loaded] ssudserial.kext (DEVGURU Co., Ltd., 1.4.42 - SDK 10.6)

System Launch Agents:

System Launch Daemons:

Launch Agents:

Launch Daemons:

User Launch Agents:

User Login Items:

iTunesHelper Application (Apple - installed 2017-08-13)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (Dropbox, Inc.

(/Applications/Dropbox.app)

fuspredownloader Application (?

(/Users/***/Library/Application Support/.FUS/fuspredownloader.app)

BambooCore Application (?

(/Library/Application Support/Wacom/BambooCore.app)

PhotoStreamAgent SMLoginItem (Mac App Store - installed 2014-05-29)

(/Applications/iPhoto.app/Contents/Library/LoginItems/PhotoStreamAgent.app)

com.adobe.SwitchBoard.monitor.plist MachInit (?

(/etc/mach_init_per_user.d/com.adobe.SwitchBoard.monitor.plist)

Internet Plug-ins:

WacomNetscape: 2.1.0-1 (installed 2016-07-18)

OVSHelper: 1.1 (installed 2016-01-10)

Default Browser: 537 (installed 2014-10-12)

AdobeExManDetect: AdobeExManDetect 1.1.0.0 (installed 2017-03-17)

OfficeLiveBrowserPlugin: 12.3.5 (installed 2013-01-28)

WacomTabletPlugin: WacomTabletPlugin 2.1.0.2 (installed 2012-09-22)

AdobeAAMDetect: AdobeAAMDetect 1.0.0.0 (installed 2017-03-17)

FlashPlayer-10.6: 29.0.0.140 (installed 2018-04-10)

DivX Web Player: 3.5.0.5 (installed 2015-12-17)

Flash Player: 29.0.0.140 (installed 2018-04-10)

QuickTime Plugin: 7.7.3 (installed 2016-11-19)

CANONiMAGEGATEWAYDL: 3.1.0.2 (installed 2009-09-09)

JavaAppletPlugin: 14.9.0 (installed 2016-08-23)

User Internet Plug-ins:

RealPlayer Plugin: (installed 2013-05-21)

Safari Extensions:

3rd Party Preference Panes:

PenTablet (installed 2012-03-19)

Flash Player (installed 2018-03-27)

WacomTablet (installed 2012-09-22)

Time Machine:

Skip System Files:

Mobile backups:

Auto backup: Yes

Volumes being backed up:

Macintosh HD: Disk size: 999.35 GB - Disk used: 796.58 GB

Destinations:

D******************e [Network] (Last used)

Total size: 2.00 TB

Total number of backups: 25

Oldest backup: 2018-01-02 02:17:29

Last backup: 2018-04-19 10:52:43

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Energy Use:

Virtual Memory Information:

Clean up:

~/Library/LaunchAgents/c******************************************a@m*********** ********************t

/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewor k/Versions/A/Support/CSConfigDotMacCert

Executable not found

~/Library/LaunchAgents/com.avast.home.userinit.plist

/Users/***/Library/Application Support/Avast/hub/userinit.sh

Executable not found

Diagnostics Information (past 7 days):

2018-04-18 12:11:54 iPhoto.app Crash (5 times)

2018-04-16 16:55:01 WacomTabletDriver.app Crash (10 times)

2018-04-16 12:37:16 PenTabletDriver.app Crash (9 times)

End of report

Hi there thanks for your message!

I am downloading Etrecheck right now.

I have checked my graphics card and it says it's an AMD Radion HD 6970M 1024mb.

I will post Etrecheck results soon.