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xrandr --verborse

xrandr --auto

gtf 1280 1024 70

  # 1280x1024 @ 70.00 Hz (GTF) hsync: 74.62 kHz; pclk: 128.94 MHz
  Modeline "1280x1024_70.00"  128.94  1280 1368 1504 1728  1024 1025 1028 1066  -HSync +Vsync

xrandr --newmode "1280x1024_70.00"  128.94  1280 1368 1504 1728  1024 1025 1028 1066  -HSync +Vsync
xrandr --addmode VGA1 1280x1024_70.00
xrandr --output VGA1 --mode 1280x1024_70.00

xrandr --output VGA1 --preferred --right-of LVDS1