Welcome back.
We could probably use some system information (see below).
Is the Manjaro ISO used the latest available? Note that a damaged ISO may still be bootable. Did you check it for consistency against the provided checksum?
Have you tried in this instance using the open source drivers?
As an infrequent forum user, please take some time to familiarise yourself with Forum requirements; in particular, the many ways to use the forum to your benefit:
The Update Announcements should be checked frequently for important update related information.
These announcements contain a Known Issues and Solutions section and should generally be checked before posting a request for support.
Output of the following command formatted according to forum requirements (see links above) may be useful for those wishing to help:
inxi --admin --verbosity=8 --filter --no-host --width
Be prepared to provide more information and outputs from other commands when asked.
Regards.