Why does nios2-elf-gdb cannot start Text User Interface (TUI) terminal or display backspace action correctly? - Why does nios2-elf-gdb cannot start Text User Interface (TUI) terminal or display backspace action correctly? Description Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 21.1 to 22.2 and Intel® Quartus® Prime Standard Edition Software version 21.1, this problem may occur when opening the nios2-elf-gdb TUI terminal or backspacing. Failure signatures are: When opening the TUI terminal, the nios2-elf-gdb will report " Cannot enable the TUI: error opening terminal [TERM=xterm] " When backspacing, the action is incorrectly displayed as spacing This is due to a bug in the terminfo folder settings. Resolution To work around this problem in the Intel® Quartus® Prime Pro Edition Software version 21.1 to 22.2 and Intel® Quartus® Prime Standard Edition Software version 21.1, do the following: Use the command , export TERMINFO_DIRS=/etc/terminfo:/lib/terminfo:/usr/share/terminfo This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 22.3 and Intel® Quartus® Prime Standard Edition Software version 22.1. Custom Fields values: ['novalue'] Troubleshooting 14017048935, 22013184998, 22012554405 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software'] 22.3 22.2 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']