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Running Outlook on the iMac causes the screen to flicker and eventually black out and reduce to half/split screen display.
If I don't run the Outlook app the Mac runs like clockwork.
With Outlook active, at some point the flickering begins and then gets progressively worse until the screen is completed fuzzed or it pops back to a half black screen (which continues to flicker intermittently - more often than not)
Whilst it sounds like a hardware issue (and I've ordered a new Mac thinking it was!) it appears to be tied to Outlook.
iMac (Retina 5K, 27-inch, Late 2015)
3.3 GHz Intel Core i5
8 GB 1867 MHz DDR3
AMD Radeon R9 M395 2048 MB
Mac OS 10.14.1 (18B75)
Outlook 16.19
Rebooting seems to clear it until we run Outlook again, then the cycle continues.
Using older versions of Outlook for Mac for personal email and calendar
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Could you guys please run a diagnose on your Mac (Holding d while booting)? I did and it says one RAM chip might be defective. Haven't tried switching to new RAM, but that might be a reason for those problems. Please run a diagnose and tell us, what your results where. Thanks.
Hi Herry,
I understand the inconvenience it brought to you. Since the issue persists, for the better investigation, we recommend you create a new thread in our forum so that we could focus on your own issue and collect more detailed information to help you do the further analysis. Thank you for your cooperation and understanding.
Regards,
Marvin
The steps above do not resolve the issues.
Also switching to teams is not an option if your organization does not support it and when you can't use it to call into Skype meetings.
Hi Herry,
If you're experiencing the same issue when using Outlook for Mac and Skype for Business, you can take the measures mentioned in my last reply to check if the issue persists. Meanwhile, since Microsoft is encouraging users upgrade to Teams, Skype for Business will be replaced in the future. So you can also download Teams to check if it helps.
While if the issue still exists, the issue could be related with Outlook client. And I'd like to get Outlook for Mac in-app support team involved in this issue. The team has rich experience on Outlook for Mac client issues and will provide further dedicated suggestions for you. You can open your Outlook client and contact them via Help > Contact Support. It's highly appreciated for your understanding.
Regards,
Marvin
I'm having the same issue, for private use I don't use Outlook and never have issues. When I work from home and use Outlook and Skype for Business after some time the screen starts giving white flashes. The mouse cursor on top of the white flashes stays visible and operational (can move it), indicating this is not a hardware issue.