Console reinitialization?

Question

linux

Hello.
I don't know how best to explain. There is Linux (dingux) on dingoo a320. A framebuffer is used to display graphics on the screen.
There are 2 questions:
1) We launch any SDL application, kill it with a kill, no more SDL applications can be launched (Could not initialize SDL: Unable to open a console terminal), and the console does not appear on the screen. Is it possible to somehow reinitialize it without rebooting?
2) Is there a way to force the terminal to switch to console mode? For example, we have a program running with the same SDL, and we need to display some message in the console mode. I understand that when the screen is redrawn from an SDL program, it will disappear. You need something like when you run an ncurses program, and another application displays, for example, an error on the screen, and it can be seen from this ncurses program.
www.dingoowiki.com/index.php?title=Development :Tutorials:SetupVideo this code does not work correctly. The console appears, the cursor blinks, but nothing appears from, for example, pressing the buttons.

Answer 1

ssty sane blindly doesn't help either?