Ubuntu how to download AMD Radeon R5 230 series drivers?

Question

linux

The fact is that it does not detect the monitor, and there are no necessary screen extensions (well, I don’t know how to understand it), and Google helped install the extension ( xrandr ) 1400 * 900, But the feeling is not right + in the terminal all the time it writes an error that interferes, and also the monitor sometimes blinks... On Windows everything works fine.
Error : [drm:vga_radeon_detected [radeon]] *ERROR* VGA-1: probed a monitor but no | invalid edit
(and so it floods that it is unrealistic to work through the terminal about once every 3 seconds)
Installed via wuubi (something like that), I remember installing such problems before, but I didn’t reinstall everything there either (like from another wubi: D) and now this is the problem