M1 version of MacbookPro is connected to the 4K 60hz refresh rate monitor yellow screen and blurry screen appear via the official docking station (A2119).

Question

Level 1

9 points

M1 version of MacbookPro is connected to the 4K 60hz refresh rate monitor yellow screen and blurry screen appear via the official docking station (A2119).

The problems with the monitor, htmi2.1 cable, and docking station have been ruled out.

After the screen is unplugged and replugged, it will temporarily return to normal (4k 60hz), but once it enters sleep and wakes up again, this problem will recur 100%.

This issue has been communicated with the talented engineer. The engineer told me that this is a common problem existing in m1 and needs to be resolved by the system update, but it has been 3 or 4 months, and I have not seen the official Apple issue regarding this issue. Any updates.

When can we handle it?

Posted on May 17, 2021 12:26 AM

Reply

Answer 1

Barney-15E

Level 10

116,746 points

May 17, 2021 11:28 AM in response to 音風

Are you running the most current version of macOS? Early versions of Big Sur had problems with HDMI on M1 Macs as you seem to be aware of.

Apple doesn't post updates for specific issues like that unless it is some zero-day exploit or they need to fix something they broke in an update. In the normal updates, they provide information about the security content, here: Apple security updates - Apple Support

Sometimes, if important enough, the update message in Software Update has some info.

However, they no longer post the updates as standalone files, so there isn't a page that talks about the content of the update.

Reply

Answer 2

音風 Author

Level 1

9 points

May 18, 2021 2:45 AM in response to Barney-15E

Yes, I am sure I am running the latest version of macos.

This is a common problem in the M1 version of Macbook Pro (the same on Mac mini), I confirmed this in the official after-sales service of the Apple Store.

But almost a year has passed, and Apple still hasn't fixed this problem.

Reply

Answer 3

May 18, 2021 4:02 AM in response to 音風

There could be some software conflict involved?

Does the display work while your mac is in Safe Mode? If it does, then does it also show the same problems when in Safe Mode?

Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

Reply

Answer 4

May 18, 2021 7:15 AM in response to 音風

Major Issues:
  Anything that appears on this list needs immediate attention. 
  No Time Machine backup - Time Machine backup not found.
  Gatekeeper disabled - Gatekeeper security protection is disabled. This computer is at risk of malware infection.
  Apple security disabled - Apple security software is disabled. This computer is at risk of malware infection.

Having no backup and disabling system security if a formula for disaster.

I will look into the rest of the report but please fix this.

Reply

Answer 5

May 18, 2021 7:22 AM in response to 音風

Configuration Files:
  /etc/hosts - Count: 5 - Corrupt!

If this file is corrupt, it may mean that you either made a mistake in editing it (most likely), or that some software tried to modify it.

You have a bunch of login items and a lot of stuff that I'm unfamiliar with.

Nothing that seems to bear a direct relation to the present issue, though.

Reply

Answer 6

音風 Author

Level 1

9 points

May 18, 2021 8:53 PM in response to Barney-15E

Yes, it will appear as long as the sleep wake-up (no matter manual or automatic), but it seems that if it is a very long sleep (more than 12 hours), this problem may not occur.

Directly using the HDMI Port of the M1 Mini may not cause this problem, it will only appear when you need to use Apple's official TypeC Hub (A2119).

Reply

Answer 7

音風 Author

Level 1

9 points

May 18, 2021 5:55 AM in response to Luis Sequeira1

It is normal to reconnect the monitor, this bug will only appear after sleeping and waking up again.

Thank you for your reply, a complete report has been generated through Etrecheck!

Report

Reply

Answer 8

Barney-15E

Level 10

116,746 points

May 18, 2021 4:15 PM in response to 音風

Does it happen after every sleep? Does it require some time asleep or running before sleep?

I have a 4K TV connected to my M1 Mini and I haven't seen that.

I'm straight connected to the HDMI port.

Reply

Answer 9

音風 Author

Level 1

9 points

May 18, 2021 8:45 PM in response to Luis Sequeira1

I think you are right, these errors will not cause abnormal monitor output, but thank you very much for your answers. 😄

Reply

M1 version of MacbookPro is connected to the 4K 60hz refresh rate monitor yellow screen and blurry screen appear via the official docking station (A2119).

Similar questions