Here is my configuration
:-------------------:: -----------------------------
:-----------/shhOHbmp---:\ OS: Fedora 32 (Thirty Two) x86_64
/-----------omMMMNNNMMD ---: Host: HP EliteBook 840 G5
:-----------sMMMMNMNMP. ---: Kernel: 5.6.15-300.fc32.x86_64
:-----------:MMMdP------- ---\ Uptime: 36 mins
,------------:MMMd-------- ---: Packages: 6700 (rpm)
:------------:MMMd------- .---: Shell: zsh 5.8
:---- oNMMMMMMMMMNho .----: Resolution: 1920x1080
:-- .+shhhMMMmhhy++ .------/ DE: Plasma
:- -------:MMMd--------------: WM: KWin
:- --------/MMMd-------------; Theme: Breeze Dark [Plasma], Adwaita [GTK2]
:- ------/hMMMy------------: Icons: breeze-dark [Plasma], breeze-dark [GTK2/3]
:-- :dMNdhhdNMMNo------------; Terminal: konsole
:---:sdNMMMMNds:------------: Terminal Font: Monospace 11
:------:://:-------------:: CPU: Intel i7-8550U (8) @ 4.000GHz
:---------------------:// GPU: Intel UHD Graphics 620
I lauched mathematica in konsole, here is what I did to explan you the problem
➜ ~ bmathematica
Mathematica 12.0.0 Kernel for Linux x86 (64-bit)
Copyright 1988-2019 Wolfram Research, Inc.
In[1]:= eq=x^2-1
2
Out[1]= -1 + x
In[2]:= ^[[A
Until Out[1], everything is fine.
At In[2], I wanted to use the previous input :In[1], so I pressed the key "up" and I couldn't retrieve the input. Instead I have this character: ^[[A
It happens with other program like matlab in console or maxima in console.
What is wrong with my configuration ?