Running Outlook on the iMac causes the screen to flicker and eventually black out and reduce to half/split screen display.

Anonymous
2018-12-04T05:06:11+00:00

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.

Outlook | MacOS | Legacy Outlook for Mac | For home

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.

0 comments

157 answers

Sort by: Newest
Most helpful Newest Oldest
  1. Anonymous
    2019-05-20T13:57:15+00:00

    Hi all,

    i got a very similar problem here.

    Hardware:

    MBP 2018 15" (Touchbar)

    external 4K Monitor LG 27UK850 - defined as primary display

    Software:

    Mojave 10.14.4 - running in Dark Mode

    Outlook 16.25(19051201) - running in Dark Mode

    I get flickering on the external monitor only after an indefinite time, if

    • I am getting back from Standby
    • I have Outlook openened on the external monitor and then tabbing back to Outlook

    I can stop screen flickering with

    • either rebooting
    • or putting the Outlook Window back to the Macbook display and then switching display scaling of my external monitor to another scale and back to my original one

    Maybe this can help reproducing the problem.

    Was this answer helpful?

    0 comments
  2. Anonymous
    2019-05-14T19:53:20+00:00

    It's totally unbelievable that Microsoft doesn't fix this bug.

    Was this answer helpful?

    0 comments
  3. Anonymous
    2019-04-23T12:53:28+00:00

    Ah - sorry I posted the problem in the wrong group - I had the screen flashing white and going completely white issue.

    Was this answer helpful?

    0 comments
  4. Anonymous
    2019-04-23T12:41:36+00:00

    I found a solution - disabling dark mode within the office apps and on the system. Has not re-occurred since. 

    I don't think so. I've had this problem already before Mojave and dark mode was introduced.

    Was this answer helpful?

    0 comments
  5. Anonymous
    2019-04-23T12:40:48+00:00

    I found a solution - disabling dark mode within the office apps and on the system. Has not re-occurred since. 

    Ok thanks for the information, however am not using dark mode, will this make a difference?

    Was this answer helpful?

    0 comments