Thunderbolt 27 display problems Windows 10

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Level 1

8 points

Thunderbolt 27 display problems Windows 10

Hi.

I own a Macbook Pro mid 2013 which I bought with a thunderbolt display 27. I prefer Windows 10 to Mac OS, so that is my main OS. Since TB is not hotpluggable in WIndows, I usually leave my mac at the office and take a PC with me. This has worked ok, but occasionally I do take the computer home. Lately the macbook has started having problems with reconnecting to the display again if I take the computer with me or after I have used it without the tb display. I start over with the display connected to the TB port from power-up (either with the integral TB cable or another TB cable), but I only get picture on the internal screen. The TB27 stays black, but has got the sound and ethernet connections right.

- I have tried both TB ports of the mac.

- Sound, ethernet and other ports on the display work when connected before startup, but no picture.

- I have tried reinstalling nvidia (650m) drivers, as well as repaired bootcamp software

- I have tried resetting SMC/nvram (not sure if the latter does anything)

- Some times I have managed getting the picture back after a number of reboots hot and cold, but then it will loose the display if I take the computer with me or disconnect and reconnect

- Earlier today I once managed to get picture back after uninstalling graphics drivers, but then I lost it agian suddenly, and I haven't been able to reconnect after that.

- I am currently in OS X which works flawlessly with the display.

- Display seems to have latest firmware: 26, 2. Ports: 2.0.7.

- I have the latest version of Mac OS.

Any ideas? Thanks.

Modellnavn: MacBook Pro

Modellidentifikator: MacBookPro10,1

Prosessornavn: Intel Core i7

Prosessorhastighet: 2,7 GHz

Antall prosessorer: 1

Totalt antall kjerner: 4

Nivå 2-buffer (per kjerne): 256 kB

Nivå 3-buffer: 6 MB

Minne: 16 GB

Start-ROM-versjon: MBP101.00F5.B00

SMC-versjon (system): 2.3f36

Serienummer (system):

Maskinvare-UUID: 6B71011B-C5D5-5B34-B5FE-57905A607033

Thunderbolt Display:

Leverandørnavn: Apple Inc.

Enhetsnavn: Thunderbolt Display

Leverandør-ID: 0x1

Enhets-ID: 0x8002

Enhetsrevisjon: 0x1

UID: 0x00010001007AE600

Rutestreng: 3

Firmwareversjon: 26,2

Port (opplasting):

Status: Enhet tilkoblet

Forbindelsesstatus: 0x2

Hastighet: Opptil 10 Gb/s x2

Port Micro-firmwareversjon: 2.0.7

Kabelfirmwareversjon: 1.0.16

Kabelserienummer: C4M43810276F797A8

Port:

Status: Ingen enhet tilkoblet

Forbindelsesstatus: 0x7

Hastighet: Opptil 10 Gb/s x2

Port Micro-firmwareversjon: 2.0.7

MacBook Pro with Retina display, OS X El Capitan (10.11)

Posted on Apr 19, 2018 5:53 AM

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Answer 1

Loner T

Level 9

59,536 points

Apr 20, 2018 2:06 PM in response to lars667

If Fast Start is disabled, can you run a SMC and NVRAM Reset and then connect and test?

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Answer 2

Loner T

Level 9

59,536 points

Apr 27, 2018 7:45 PM in response to lars667

As a test, shutdown the MBP, connect the display, reboot and hold Alt/Option. Select Windows, and check if Windows will detect the display. Next test would be to run a SMC/NVRAM Reset and run the same test. If both tests work as expected, try the 'warm' reboot and test.

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Answer 3

Loner T

Level 9

59,536 points

Apr 20, 2018 6:10 AM in response to lars667

Do you have Windows Fast Start enabled?

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Answer 4

lars667 Author

Level 1

8 points

Apr 19, 2018 10:34 AM in response to lars667

I actually managed to get it up and running again, but am not sure exactly what did the trick. Tried powering off (pulling the chord of) the display once again and moving thunderbolt, but I have done this several times without any effect. Someone recommended enabling fast boot in windows 10, but couldn't see any difference after doing that.

Another thing. Sometimes there is a chime, sometimes not. Often I have to press the power button several times to start the mac, especially while connected to the display.

Best regards

Lars Erik

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Answer 5

Loner T

Level 9

59,536 points

Apr 21, 2018 3:18 PM in response to lars667

A cold start of Windows is supposed to discover a TB device on models with a TB port. Display ports should be 'hot-pluggable', because I use DP displays on a 2012 Mac and can hot plug/unplug ports labeled TB, as long as the other end is a non-TB port.

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Answer 6

lars667 Author

Level 1

8 points

Apr 27, 2018 2:48 AM in response to Loner T

Meaning you're connecting a non-apple display? I have contemplated selling my TB 27, but it is such a beautiful display 🙂

By the way. Status now is that I redisabled fast boot and reset nvram/smc once more. After this, I need 1 cold start and one reboot to get the tb display working. Haven't got a clue as to why.

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Answer 7

Loner T

Level 9

59,536 points

Apr 19, 2018 2:39 PM in response to lars667

Hot-plugging TB is supported in 2014 and later models under Windows.

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Answer 8

lars667 Author

Level 1

8 points

Apr 19, 2018 11:04 PM in response to Loner T

As I said, I am totally aware that hotplugging is not supported on my hardware. The problem is when connecting the display before powering up, after having started windows without the display previously. Ie I take the mac with me, use it with a single display (Internal), and when I get back, connect it and switch it on, it won't recognise the display portion of the TB display (ports work).

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Answer 9

lars667 Author

Level 1

8 points

Apr 20, 2018 6:10 AM in response to Loner T

At the moment, yes. When this started, no. I searched around, and someone suggested turning this feature on. Did not make any difference, although a bit odd suggestion. One would think fast startup could cause this kind of behaviour, as it saves driver state?

Thanks for your suggestions.

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Answer 10

lars667 Author

Level 1

8 points

Apr 27, 2018 4:32 AM in response to lars667

And by the way, I was talking about starting up from "cold state" ie after the mac being turned completely off. It used to work with the display straight away before, but now I have to do an additional restart.

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Answer 11

lars667 Author

Level 1

8 points

Apr 21, 2018 12:40 PM in response to Loner T

I did this before posting here (fast start was disabled), but could try once more when I'm at the TB display again.

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Answer 12

Loner T

Level 9

59,536 points

Apr 27, 2018 4:28 AM in response to lars667

You should need only a standard restart. Does macOS show the same behavior?

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Answer 13

lars667 Author

Level 1

8 points

Apr 27, 2018 4:30 AM in response to Loner T

No, MacOS works perfectly fine. It doesn't matter which state the mac is in when connecting, I will get picture when turning it on from scratch, from suspend etc.

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Thunderbolt 27 display problems Windows 10

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