(Partially solved) 16 inch Pulsating white/blue light from playheads.

[Hallonskalle]

EDIT: Turned off "True Tone" and the flickers stopped. Turned on it is there again. What does True tone actually do and is this a software/driver bug perhaps?
Hey.

Got a 16" Mac i9 Base model last week.
First thing I noticed while playing projects in both Logic Pro X and Maschine DAW.
The white "playhead" marker that runs through the projects when you press play seems to be pulsating from the original white to light blue. This dissapears when you zoom in a bit. However when you zoom in you see very clearly the "ghosting/trailing" issue. The ghosting I am aware off some users reported and it is there.
But the pulsating white to blue looks like almost the screen is bad or graphics issue. Does anyone else experience this?
Also after working in project where you scroll a bit back and forth between audio/midi notes the blur from the ghosting is quite annoying. I have never seen this or been aware of this. My Macbook pro 13" 2015 has solid white "playheads" while they are moving and does not cause this slight motion sickness.

Apple technicians are checking in to it this week but they had no reports on the issue.
Otherwise the machine works really well.

 

[Sanpete]

Some people regard True Tone as a bug, but officially it's there on purpose to make the colors look more "natural" in shifting light conditions.

 

[Hallonskalle]

Some people regard True Tone as a bug, but officially it's there on purpose to make the colors look more "natural" in shifting light conditions.

Ah ok I see!
For me when I have it On the display looks more yellowish/browner tint IMO.
I don't work with photos only music production so glad that the bug dissapear.
The eye discomfort from blurr or whatever it is, is another story.

 

[raffy]

Which discrete GPU do you have?

When my MBP16 is on the 5500M, the final retina composite (at max display scale, would be 4096x2560 to 3072x2560) causes incorrect anti-aliasing when downscaling by 75%.

You can see this by dragging your mouse across a solid color region of the display while on the integrated GPU, then switch GPU and repeat the same drag, and you'll see flicking and white/blue discoloration.

 

[raffy]

If you have a MBP 16 inch, could you help me with a display test? Thanks!

This is a follow-up to this post. I've come up with a very reliable way to reproduce a display issue on my machine. Could you help me test it and see whether you could reproduce it? Steps: Turn ON Night Shift in the Display settings. Make sure your MBP is using the discrete GPU (launching...

forums.macrumors.com

 

[Hallonskalle]

Which discrete GPU do you have?

When my MBP16 is on the 5500M, the final retina composite (at max display scale, would be 4096x2560 to 3072x2560) causes incorrect anti-aliasing when downscaling by 75%.

You can see this by dragging your mouse across a solid color region of the display while on the integrated GPU, then switch GPU and repeat the same drag, and you'll see flicking and white/blue discoloration.

View attachment 897680

That is same problem as mine I think. A beta user said that the next update fixes that.

 

[mtoddy]

I posted about this a little while back and have been trying to get anyone to tell me if the problem persists in 10.15.3 because I downgraded to 10.15.1 awhile back to "fix" this issue:

Pixel Discoloration when using dedicated GPU (MBP 16")

I'm wondering if anyone else has noticed that while on dark backgrounds, finer white details (such as white text and the cursor's white edges) are discolored. Some distinct examples: As I move my cursor slowly, pixel-by-pixel, I can actually make the leftmost column of pixels of the white...

forums.macrumors.com

 

[Hallonskalle]

I posted about this a little while back and have been trying to get anyone to tell me if the problem persists in 10.15.3 because I downgraded to 10.15.1 awhile back to "fix" this issue:

Pixel Discoloration when using dedicated GPU (MBP 16")

I'm wondering if anyone else has noticed that while on dark backgrounds, finer white details (such as white text and the cursor's white edges) are discolored. Some distinct examples: As I move my cursor slowly, pixel-by-pixel, I can actually make the leftmost column of pixels of the white...

forums.macrumors.com

Have 10.15.3 and the problem is there. Read somewhere that a user had the beta 10.15.4 and it was fixed there. It goes away if I disable True Tone.

 

[mtoddy]

:sigh: Thanks for the info, @Hallonskalle