Here is another workaround. When in Nvidia mode, do below commands.
First add/edit nvidia-kms.conf, comment out "options nvidia-drm modeset=1", it will fix the external monitor issue.
$ prime-select intel # It will generate /lib/moprobe.d/blacklist-nvidia.conf $ update-initramfs -u
These will fix the nvidia or noveau loaded in intel mode.
Here is another workaround. When in Nvidia mode, do below commands.
First add/edit nvidia-kms.conf, comment out "options nvidia-drm modeset=1", it will fix the external monitor issue.
$ prime-select intel # It will generate /lib/moprobe. d/blacklist- nvidia. conf
$ update-initramfs -u
These will fix the nvidia or noveau loaded in intel mode.