15 Posts
0
520
new WD22TB4 Module does not work with my existing WD19TB Dock
I plugged in the newly purchased "WD22TB4 Module" to my existing "Dell Thunderbolt Dock - WD19TB", the dock does not show anything on my monitor. And then I have to swap back the existing module to get it work.
Not sure my new module has issue or they are not actually compatible.
My laptop: Precision 5750
Stanley Qian
15 Posts
0
May 18th, 2022 08:00
Photo link https://photos.app.goo.gl/y9rrt2zSk7HMYHKv5
Let's just resolve current issue.
WD19TB (old) + WD22TB4 Module (new)
(No output to any monitor except laptop itself screen)
I don't have WD22TB4 dock but just its module.
Stanley Qian
15 Posts
0
June 5th, 2022 05:00
Thanks Dell support team to trouble shooting this issue at various steps.
Let me summarize all to share with you.
The original issue: After swap with the new WD22TB4 onto my exiting WD19TB, the dock is not able to connect to my Dell Precision 5750.
Solution:
Swap back old module to WD19TB so it can be connected to laptop.
And then update firmware on the WD19TB. (The firmware is on the body of WD19TB, not on its module).
And then switch Intel display card to NVidia card in BIOS.
Finally reboot laptop and plugin dock.
The WD19TB body plus WD22TB4 module supports two 4K @60hz (DP) and 3rd 4K @30Hz (HDMI) on my Precision 5750.
The WD22TB4 supports three 4K @60hz but the Dell precision 5750 (5 series) does support three 4K at all 60Hz except Precision 7540, 7550, 7740 & 7750.
Take away: