If you are using a mini displayport cable we recommend you narrow down the issue further.
Thunderbolt cable 1 vs 2.
For 1m 3 2 ft or longer cables thunderbolt 3 supports passive cheaper ones that have.
This page compares thunderbolt 1 vs thunderbolt 2 vs thunderbolt 3 and mentions difference between thunderbolt 1 thunderbolt 2 and thunderbolt 3.
Thunderbolt 3 has a top data transfer speed of 40gbps as long as the cable is 0 5m 1 6 ft or shorter.
Displayport 1 2 is backwards compatible so the issue should not be due to different displayport revisions.
The term thurderbolt is basically hardware interface which allows connection of external peripherals with computer or laptop.
The problem is that the port and cable connectors for.
It is hardware interface developed by intel apple which allows connection of any external peripherals to computer laptop.
When you use a thunderbolt 1 computer with a displayport monitor you do need to use a mini displayport cable not a thunderbolt 1 or 2 cable.
Compared to thunderbolt 2 it doubles the bandwidth to 40 gbit s 5 gb s allowing up to 4 lane pcie 3 0 and 8 lane displayport 1 2.
While the ports look the same the technologies have a number of key differences between thunderbolt 3 usb c 3 1 gen 2 and usb c 3 1 gen 1.
Thunderbolt 1 vs thunderbolt 2 vs thunderbolt 3 difference between thunderbolt 1 thunderbolt 2 thunderbolt 3.