Note:
1. It's likely all of your display ports are connected to the Intel GPU
so we can probably ignore Nvidia here. To be sure please try disabling
the discrete GPU in your BIOS and verify the bug still occurs.
2. If older kernels like 4.19 work then this should be assigned to the
kernel.
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Tags added: multimonitor
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1876534
Title:
ThinkPad P72 - Very serious issues with external monitors on
Thunderbolt dock
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1876534/+subscriptions
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