bigtop@bigtop-ThinkPad-T61:~$ xrandr --addmode VGA1 "640x480_60.00"
bigtop@bigtop-ThinkPad-T61:~$ xrandr --output VGA1 --mode 640x480_60.00
bigtop@bigtop-ThinkPad-T61:~$ cvt 640 480 30 -i# 640x480 59.52 Hz (CVT) hsync: 15.00 kHz; pclk: 12.00 MHz
Modeline "640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsync
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "640x480_60.00"   25.00  640 664 720 800  480 483 487 522 interlace -hsync +vsync"640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsync
xrandr: unrecognized option '12.00'
Try 'xrandr --help' for more information.
bigtop@bigtop-ThinkPad-T61:~$ cvt 640 480 30 -i# 640x480 59.52 Hz (CVT) hsync: 15.00 kHz; pclk: 12.00 MHz
Modeline "640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsync
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "640x480_60.00"   25.00  640 664 720 800  480 483 487 522 interlace -hsync +vsync"640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsync"640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsyn"640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync
xrandr: unrecognized option '12.00'
Try 'xrandr --help' for more information.
bigtop@bigtop-ThinkPad-T61:~$ cvt 640 480 30 -i# 640x480 59.52 Hz (CVT) hsync: 15.00 kHz; pclk: 12.00 MHz
Modeline "640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsync
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "640x480_30.00"   12.00  640 664 720 800  480 483 487 504 interlace -hsync +vsync
bigtop@bigtop-ThinkPad-T61:~$ xrandr --addmode VGA1 "640x480_30.00"bigtop@bigtop-ThinkPad-T61:~$ xrandr --output VGA1 --mode 640x480_30.00bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "NTSC" 14.31818 640 728 792 896 400 444 452 526 Interlace
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "NTSC" 14.31818 640 728 792 896 400 444 452 526 Interlace +hsync +vsync
X Error of failed request:  BadName (named color or font does not exist)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  16 (RRCreateMode)
  Serial number of failed request:  29
  Current serial number in output stream:  29
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "NTSC2" 14.31818 640 728 792 896 400 444 452 526 Interlace +hsync +vsync
bigtop@bigtop-ThinkPad-T61:~$ xrandr --addmode VGA1 "NTSC2"
bigtop@bigtop-ThinkPad-T61:~$ --output VGA1 --mode NTSC2
--output: command not found
bigtop@bigtop-ThinkPad-T61:~$ xrandr --output VGA1 --mode NTSC2
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "480i" 13.5    720 736 800 856 480 484 492 525 interlace
X Error of failed request:  BadName (named color or font does not exist)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  16 (RRCreateMode)
  Serial number of failed request:  29
  Current serial number in output stream:  29
bigtop@bigtop-ThinkPad-T61:~$ xrandr --newmode "480i5" 13.5    720 736 800 856 480 484 492 525 interlace
bigtop@bigtop-ThinkPad-T61:~$ xrandr --addmode VGA1 "480i5"bigtop@bigtop-ThinkPad-T61:~$ xrandr --output VGA1 --mode 480i5
bigtop@bigtop-ThinkPad-T61:~$