GTi14 Ultra Thunderbolt 4 Problem (PD and DP not working together)

vitasonline

Hello. When I connect the Type-C cable monitor to a Gti14 mini computer with Thunderbolt 4, the monitor does not show the image (power is supplied to it, but no image is received). If I still connect Type-C Power to second port and I reconnect the connector usb type-c to Thunderbolt 4, then it begins to show the image. Why?
If I use the same monitor with another mini pc on Chatreey T9 (Intel N100 CPU), it works with one usb type-c cable.
It seems to me there is a problem with Thunderbolt 4 in this GTi14 Ultra.
I updated the BIOS from T102 to T105 but it did not solve the problem!

support1

vitasonline Hi there,
Does it work if you turn on the PC first and then connect to the Type-C cable monitor ?

support1

vitasonline
Hi there,
If your type c cable is not a all-in-one cable, then it cannot support video output, maybe it can only support video output,but not power supply. So when you connect another cable to charge it, it can output the video .

vitasonline

New link on this video:
http://xhslink.com/a/uDQwfz4sX9AV

vitasonline

support1 No, it doesn’t work that way either, power will be supplied to the screen, but the image signal will not go through.

It only works if external power is supplied to the screen and only then connect the tunderbolt cable.

Please check it out on your monitor and send me the video.

support1

Hi there,

The monitor that requires external power before connecting the Thunderbolt cable might have higher power consumption. The power delivered through the Thunderbolt 4 port on the Gti14 mini computer alone might not be sufficient to power up the monitor and transfer the video signal simultaneously. When you connect an external power source to the monitor first, it ensures that the monitor has enough power to operate properly and then the Thunderbolt cable can handle the data transfer for the image display.

When I tried our TYPE C monitor, it works without extra power, it has lower power requirement and can operate within the power limits provided by the Thunderbolt 4 port without the need for an additional power source.

vitasonline

support1 Hello,
I checked the power consumption of my monitor and one maximum is 4W, and its specifications indicate that it does not need external power. And this monitor works great with a mini PC chatreey T9 over one type-c cable.
Thunderbolt should give out up to 15W of power.
Write the monitor model that you tested, or better yet, make a video.

support1

vitasonline Hi there,

The TYPE C monitor is INNOCN 13A1F
Here is the video https://mega.nz/file/jixxXLZB#BcSzH8CKAKOq2Y4OoK-sb8jJl7Qjfz3gtjS1MnYtjzA

vitasonline

support1 Thank you! I’ll check on another monitor.
My video review on Youtube channel -

vitasonline

support1
Hello! I tested both my mini computers via usb type-c tester POWER-Z KM003C о from ChargerLAB.
When I connect the monitor to the PC chatrey t9, both power and image are transmitted via one cable, the tester detects the Svid protocol and the image immediately appears on the monitor after pressing the power button on the PC:
Image description
But when I connect the monitor to the PC Gti14 ultra, only power is transmitted through one cable, the tester does not detect the Svid protocol and there is no image on the monitor after pressing the power button on the PC.
If I connect the second type-c cable to power the monitor, the PD protocol changes from 15W to 5W and there is no image. When I reconnect the cable, the image starts to show.
Image description
You can test POWER-Z KM003C with your INNOCN 13A1F monitor ?

support1

vitasonline
① Reason for no image with single cable connection:
Incompatible cable: The cable you are using might not be fully compatible with the power and data transmission requirements for both the PC and the monitor.Ensure that you are using a cable that is specifically designed for connecting your PC and monitor

②Reasons for PD protocol change and no image with second cable connection:
Power management issue: The PC might be detecting the second cable connection as a different power source and adjusting the power delivery (PD) protocol in a way that causes issues with the monitor’s operation.
Conflict between cables: The simultaneous use of two cables might be causing some kind of conflict or interference that is preventing proper image display.
③Update drivers: Update the graphics card drivers on your PC to the latest version to ensure proper compatibility with your monitor.
④Test different ports and cables: Try connecting the monitor to different ports on the PC and using different cables to see if the problem persists. This can help identify if the issue is with a specific port or cable.

⑤ Sorry, I am not in the office until Oct.8th, so I am unable to test the power-z

vitasonline

T9 and GTi14 with type-c cable from the monitor kit
Image description
T9 with type-c cable from the monitor kit and GTi14 with thunderbolt 4 cable

GTi14 does not display image even with thunderbolt 4 cable

gti14.sqlite3

112kB

t9.sqlite3

148kB

original-images.zip

757kB

vitasonline

support1 Please test the power-z when you get back to the office and attach your .sqlite3 file.
I will be waiting very much. Thank you!

vitasonline

support1 Please test the power-z and attach your .sqlite3 file.
I will be waiting very much. Thank you!

support1

vitasonline

Hi there，

Sorry, I thought the POWER Z was a software, but actually it was a PD.
We don’t have this tool.
From what I learn on the internet, this item only support power and the testing, but not support display.

narumivtl

Hi, I have this problem too on the GTi12. Im using a portable USB C monitor where its requires power and video via a single cable. On my other USB C laptop it is working fine, only the GTI12 USB C rear port is not working. This might be a driver issue which im still waiting it may be fixed one day.

vitasonline

support1 POWER Z support PD and DP, see it work on my Chatreey mini PC Image description

support1

vitasonline What is the TDP of T9 ?

vitasonline

support1 Intel N100 cpu TDP 6w
Power adapter 35w

vitasonline

support1 I use the same cables with T9 and GTi14 !
But in T9 it works power delivery + display port at the same time, and in GTi14 only power delivery works