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

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  1. Anonymous
    2019-07-18T08:07:27+00:00

    Got the Update to Outlook 16.27 (19071500) yesterday an the problem remains.

    In fact it is worse !

    After opening Outlook 16.27 after downloading , screen immediately started flashing  .

    It was posted that Microsoft were looking at resolving the problem ..let's hope .

    (bear in mind this issue only applies to late 2015 27" iMacs ..the rest of the iMac world exists in a flash-free world !)

    In interim Apple mail works just 100%!!

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  2. Anonymous
    2019-07-18T08:20:33+00:00

    As I posted some weeks ago, the problem also occurs on my MBP with external 4K USB-C Monitor:

    Hardware:

    MBP 2018 15" (Touchbar)

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

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  3. Anonymous
    2019-07-18T10:52:30+00:00

    Same problem here, same hardware, same issue and only with Outlook (no Skype installed)

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  4. Anonymous
    2019-07-18T22:43:44+00:00

    I'm having the same issue, Late 2015 iMac, etc., running Outlook for Mac, I had to revert to Apple Mail but now I cannot use my shared calendars which is why we use Outlook company-wide, we need this fixed please!

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  5. Anonymous
    2019-07-19T06:35:32+00:00

    We are having the same issue on one of these devices. It's the only one that is a bit more recent (late 2015).

    I'm assuming it's a combination of a hardware release/chip, and Outlook.

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