found a workaround (thanking fossfreedom of Budgie team for gldriver suggestion): accessed system via Ctrl-Alt-Fxx and installed raspi-config, then downloaded gldriver-test_0.15_all.deb from Debian repo and installed it. After reboot everything is working properly
found a workaround (thanking fossfreedom of Budgie team for gldriver suggestion): accessed system via Ctrl-Alt-Fxx and installed raspi-config, then downloaded gldriver- test_0. 15_all. deb from Debian repo and installed it. After reboot everything is working properly