Ubuntu – Can’t I see 16:9 aspect ratios


This what my display settings look like with the TV

So for a while I have had an old EMA 15" monitor hooked up to my Ubuntu machine running Ubuntu 15.04. The Monitor runs 1024×768 (4:3). At this point all is fine. But I hooked my computer to my Sansui HDTV and it will not let me have a 16:9 ratio so it is in letter box. How do I fix this?

NOTE: I am using a VGA cable between the TV and COMPUTER. Also I am used to Ubuntu and the terminal so please HELP!!!

$ sudo xrandr -q
Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
VGA1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0* 
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Best Answer

  • Type this into your terminal: sudo cvt 1366 768. It will output something similar to:

    # 1366x768 59.88 Hz (CVT) hsync: 47.79 kHz; pclk: 85.25 MHz
    Modeline "1366x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync

    Yours may be different than what I have, so copy everything after "Modeline" from your terminal.

    Now paste in what you copied into this command, e.g. sudo xrandr --newmode "1366x768_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync

    The final step is to add the new resolution to the VGA1: sudo xrandr --addmode VGA1 1366x768_60.00

    That should give you the resolution you want for the TV.

    To keep the settings after restart use the answer here with your settings and you won't have to redo it.

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