I'm able to display on both the internal monitor and an external one, by specifying the connector name in the edid firmware kernel boot option:
drm.edid_firmware=eDP-1:edid/1920x1080.bin -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821533 Title: drm fails to accept edid version 2.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1821533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
