In May 2022, in the evenings and at weekends, it will be possible to have another person (and up to four pupils up to their 15th birthday) travel free of charge on the semester ticket. This regulation only applies within the VVO, unfortunately it is not possible outside the VVO.
You can find more information on the StuRa website at: https://www.stura.tu-dresden.de/aktuelles/220421_personenmitnahme_beim_semesterticket_im_vvo_im_mai_22