Hi, I have a very similar problem and noticed the following: My external display is working with Nvidia "Performance Mode" only. In "On-demand" mode, I have a black screen that it is not detected in Ubuntu system settings, although it is detected by Nvidia X Server Settings. As if we needed a parameter in On-demand to force HDMI interface to start with Nvidia card and not Intel.
Any hints about this? @Igor, are you sure that you are in "On Demand" mode? I realized that it automatically switches to "Performance Mode" when we change the driver. Thanks, Thierry --------------------------------------------------- My config: - Lenovo Thinkpad P1 Gen2 with Nvidia Quadro T2000 - Secure Boot Disabled - Nvidia driver 440 activated -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871573 Title: [Lenovo ThinkPad P1 Gen 2] HDMI port can't be found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1871573/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
