https://bugs.freedesktop.org/show_bug.cgi?id=110214
--- Comment #87 from komqinxit@zoho.eu --- I have the same bug with xterm and shift+paging.
Another similar bug. xfce4-terminal leaves a large black area at the bottom when it renders 'dmesg' or 'cat /etc/passwd'.
AMD Ryzen 3 2200G. Arch Linux. Mesa 19.0.3-1