No graphs output shows up

ROOT Version: 6.26.10
Platform: Ubuntu 22.04.1
Compiler: not provided


You do not see the graphics window ?
Are you connected via ssh ?
Are you in batch mode ?
can you post the full screen dump ? it seems there is messages before the ROOT banner.

Do you connect to a remote (“Red Hat 8.5”) machine using “ssh -X -Y ...”?

If not, and you work on your own “local” machine which runs “Ubuntu 22.04” then you cannot use ROOT built on “Red Hat 8.5”. You need ROOT binaries built for your system / compiler.