When I connect my laptop to my Plugable dock to 3 monitors and turn on laptop only 2 monitors work. When I restart the laptop the 3rd monitor usually works. The 3rd monitor as attached is HDMI connected.
How do I fix this issue?
I can’t run https://plugable.com/pages/plugdebug on my work laptop.
I run DisplayLink manager App Version: 3.2.14.0 and Driver version 12.12684.0
My laptop: System SKU LENOVO_MT_21R2_BU_Think_FM_ThinkPad T14s Gen 6
Thanks
Hello,
Thank you for contacting Plugable support! Sorry to hear about this issue. I’d be more than happy to assist you.
Since you are unable to run our diagnostics utility due to it being a work laptop, do you know if you are also limited in your ability to update the system drivers?
I ask because the display that isn’t working reliably appears to be connected to the USB-C “Alt Mode” based output on the dock (is not using the DisplayLink chipset). This output of the dock uses the native USB-C video capabilities of your system to drive the attached display and is ultimately controlled by the graphics chipset in the laptop itself. So I would suggest if possible to try updating the system graphics drivers for your laptop as our first step.
Looking at the laptop specifications here: https://psref.lenovo.com/Product/ThinkPad/ThinkPad_T14s_Gen_6_Intel?tab=spec I believe you should be able to install the latest Intel graphics drivers that will be appropriate for your system model from here: https://www.intel.com/content/www/us/en/download/785597/intel-arc-graphics-windows.html
If this does not help or if you are unable to install it, please let me know.
Thanks again for contacting Plugable support and best wishes!
Joshua Henry
Senior Engineer | Product Owner
Plugable Technologies
Hi Joshua, I have the same issue where the screen (1 of 3) plugged in to the USB-C port fails to initialize unless unplugged and re-plugged in, while the laptop is connected. The two screens connected via HDMI function without issue on startup. I also noticed, similar to hcanning that one or more screens defaults to run off my computers native USB-C video capabilities, even when only the two HDMI screens are functioning, and not the DisplayLink chipset. This is a personal laptop with all Windows and manufacturer (Lenovo) drivers/software updated. I will email the plugdebug file to support@plugable.com for your review. Looking forward to hearing back. Thanks.
With the three monitors detected (after unplugging and re-plugging monitor #3):
Note: this issue (and the plug/unplug fix) is also replicated exactly the same with a new Macbook Air, indicating that the issue is localized to the docking station, not the computers.