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MB pro 13' (2019) Display artifacts
- Thread starter SergeySeregin
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I did the pram reset, smc reset, and I deleted coconut battery. That is all I did. I had the lower 3rd of my screen mess up for less than a second a few times a day, everyday.
I performed SMC and NVRAM/PRAM resets for unrelated issues on my MAC as recently as 3 weeks ago. No dice as far as the artifact issue is concerned.
I was advised to do the same for the blue tinge and also occasional artefacts but its not made any difference. I'm not running coconut battery either.
I'm running Coconut Battery still but my problems have all but gone since turning true-tone off. The only exception is if the light sensor receives a burst of sunlight from an oblique angle. Other than that the display is fine.
I'm one of those that like true-tone so I hope this issues is resolved in due course.
I'm one of those that like true-tone so I hope this issues is resolved in due course.
I can can confirm that turning True Tone off DOES NOT fix the problem. It does, however, reduce it. With True Tone off it happens less frequently.
I think I fixed it with this trick. No lines for about month. new logic board and True Tone off
Here's an update to my experience. I'm on a 2019 mbp 1.4. Brand new, started noticing the odd graphics glitch after a couple days. There was an OS update though a couple days later, I installed that, and it hasn't given me any graphic glitches since then, so I'm thinking this has been fixed now from that update. It was the latest Mojave supplemental update, I don't remember the exact number.
I've turned true-tone back on after supplementary 14.6 update 2. So far so good.
The release notes only mentioned security stuff but maybe they have fixed the previous errata?
The release notes only mentioned security stuff but maybe they have fixed the previous errata?
I think so. I was seeing it a few times a day, and now hasn't happened once after that update.
This looks like VRAM issue or low-level software issue. I recall that while I had my rMBP 2013 it displayed such artifacts in later macOS versions (10.13, 10.14) when shutting down or booting up - which is semi-understandable and can be forgiven. It started probably with Metal being introduced to macOS.
I know this is an old AMD video, but it is valid for all manufacturers, even today:
I'm no specialist in these matters, but could it be that VRAM gets corrupted by some interference? Since VRAM is also RAM in these machines, I guess not. But could it be corrupted en route to display, in the flex cable? Anybody with knowledge?
I know this is an old AMD video, but it is valid for all manufacturers, even today:
I'm no specialist in these matters, but could it be that VRAM gets corrupted by some interference? Since VRAM is also RAM in these machines, I guess not. But could it be corrupted en route to display, in the flex cable? Anybody with knowledge?
I thought I was in the clear, but it just happened again this morning. It's very likely a software issue since my daughter's MB Pro is doing the same thing.
I'm not sure where they "pulled" this logic board naming but as far as I know by that they are referring to mainboard/motherboard. So yeah, it is only semantics... Pretty much everything is on the mainboard these days and it at least contains sockets for CPU, memory, HDD and extension cards (like PCIe etc...), connectors for keyboard/mouse etc...
Also this GPU / graphic card is kind of a semantics when i5 cpu with integrated graphics is in question without actual additional GPU chip or card. So the GPU is inside the CPU in this model (entry MBP)... It always makes me smile when I see peoples referring these kind of flickering problems under broken GPU in cases where it is inside the Intel CPU. Those CPU's quite rarely fail in use and rarely are that out of the box either. Of course there are some chips and connectors involved in the mainboard, and the fact that this integrated GPU uses RAM as graphics memory, so it is sharing the memory chips located on the mainboard.
Back to your question, logic board in MBP contains all you listed as CPU, memory chips and SSD/NVMe is soldered directly to mainboard (=logic board), and the GPU is actually inside the CPU. Also this "magical" T2 chip is directly soldered on the mainboard as far as I know. So besides the logic board there is another board for fingerprint reader (I guess it comes with the Touch Bar in this model), then there are speakers, touchpad, keyboard and battery in the lower case, plus maybe some daughter card for the TB ports.
Take a look at iFixit teardown of this model, in the last picture you basically see how few parts there actually are in the lower case.
So basically if changing the mainboard, flex cable from mb to display panel and the display panel does not solve the flickering problem, your machine is probably just cursed...
Or it could be the software, driver, firmware bug, simply design flaw in the hardware part or bad / faulty batch of some of the parts.
My vote goes for sw, driver or firmware bug in this case.
Also this GPU / graphic card is kind of a semantics when i5 cpu with integrated graphics is in question without actual additional GPU chip or card. So the GPU is inside the CPU in this model (entry MBP)... It always makes me smile when I see peoples referring these kind of flickering problems under broken GPU in cases where it is inside the Intel CPU. Those CPU's quite rarely fail in use and rarely are that out of the box either. Of course there are some chips and connectors involved in the mainboard, and the fact that this integrated GPU uses RAM as graphics memory, so it is sharing the memory chips located on the mainboard.
Back to your question, logic board in MBP contains all you listed as CPU, memory chips and SSD/NVMe is soldered directly to mainboard (=logic board), and the GPU is actually inside the CPU. Also this "magical" T2 chip is directly soldered on the mainboard as far as I know. So besides the logic board there is another board for fingerprint reader (I guess it comes with the Touch Bar in this model), then there are speakers, touchpad, keyboard and battery in the lower case, plus maybe some daughter card for the TB ports.
Take a look at iFixit teardown of this model, in the last picture you basically see how few parts there actually are in the lower case.
So basically if changing the mainboard, flex cable from mb to display panel and the display panel does not solve the flickering problem, your machine is probably just cursed...
Or it could be the software, driver, firmware bug, simply design flaw in the hardware part or bad / faulty batch of some of the parts. My vote goes for sw, driver or firmware bug in this case.
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No, I haven't seen anything new about this but Catalina is released today. Anyone tried it yet?
I'm not sure when I have enough time to install it and I'm not quite yet decided whether I just install it over Mojave or start fresh and format, or even start fresh and format but then use my TM backup to restore settings and other stuff. I'd rather want to save time and do the fastest way but there will be some tradeoffs with easy way as always...
I'm not sure when I have enough time to install it and I'm not quite yet decided whether I just install it over Mojave or start fresh and format, or even start fresh and format but then use my TM backup to restore settings and other stuff. I'd rather want to save time and do the fastest way but there will be some tradeoffs with easy way as always...
If I'm receiving my MacBook Pro next week, how do I go about formatting it right away and doing a clean install of Catalina? I'd rather clean install than upgrade.
I think that would be a good idea since you are setting it up for the first time anyway, so not much extra trouble then. Basically you boot to recovery console by pressing command and R keys when powering up the machine. I'm pretty newbie on MacOS world myself, I've been dealing with MS DOS and Windows machines starting from MS DOS era forward and this MBP is my first MacOS device ever...
But there is pretty detailed guide on Apple.com, just follow the steps and I'd format the drive at the same time as there is that factory preinstalled version already. Worked fine for me the last time I did it for Air I returned.
But there is pretty detailed guide on Apple.com, just follow the steps and I'd format the drive at the same time as there is that factory preinstalled version already. Worked fine for me the last time I did it for Air I returned.
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That's what I thought just wanted to make sure.
I'll do that as I prefer clean installs for major OS upgrades.
Cheers
Do you usually do that so you install manually everything (settings and programs) after clean install OS, or just restore from TM backup? I not sure which way I will do it. I'd rather save time but want to avoid possible issues afterwards...