mxqi: Borked terminal after forces job end of htop/vi

[donald]

"nach dem return eines jobs im xterm, scrollt mein mausrad nicht mehr, sondern macht komische zeichen auf der konsole ..." , "aber nur, wenn ich htop starte und vom daemon rausgeworfen werde"

[donald]

Guess, this can happen with all applications modifying terminal modes with escape sequences, for example using curses). Same happens, if these applications are killed with -9.

This is what htop sends at the beginning:

\33[?1049h                                           # enable alternate screen buffer (xterm)
\33[1;64r                                            # set scrolling region 1,64
\33(B                                                # character set USASCII
\33[m                                                # Character Attributes (SGR): Normal (default), VT100.
\33[4l                                               # Reset Mode : Replace Mode (IRM)
\33[?7h                                              # Auto-Wrap Mode (DECAWM), VT100.
\33[?1h                                              # Application Cursor Keys (DECCKM), VT100.
\33=                                                 # Application Keypad (DECKPAM).
\33[?25l                                             # Hide cursor (DECTCEM), VT220.
\33[39;49m                                           # Set foreground color to default, ECMA-48 3rd.,Set background color to default, ECMA-48 3rd. 
\33[?1000h                                           # Send Mouse X & Y on button press

and this is the cleanup on normal termination:

\33[39;49m                                           # Set foreground color to default, ECMA-48 3rd.,Set background color to default, ECMA-48 3rd. 
\33(B                                                # character set USASCII
\33[m                                                # Character Attributes (SGR): Normal (default), VT100.
\r
\33[J                                                # Erase in Display: Selective Erase Below (default).
\33[?12l                                             # Stop blinking cursor (AT&T 610).
\33[?25h                                             # Show cursor (DECTCEM), VT220.
\33[?1000l                                           # Send Mouse X & Y on button press
\33[64;1H                                            # Cursor Position 64,1
\33[?1049l                                           # Use Normal Screen Buffer and restore cursor
\r
\33[?1l                                              # Normal Cursor Keys (DECCKM), VT100.
\33>                                                 # Normal Keypad (DECKPNM), VT100.

So in this case its "Application Cursor Keys (DECCKM), VT100". which could be reset by "\e[?1l". But there are million ways to configure the terminal and it depends on the terminal type. Also there might be the same problem with settings of the terminal device (not the terminal(-emulator)), like cooked mode etc. tset and reset are quite complex, takes ages and clear the screen.