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I want to get my 1366x768 monitor to have other screen resolution 800x600 or 1240x768 in full screen.

What option do I have? Thanks.

Here what I did,

shaharil@busuk:~$ xrandr Screen 0: minimum 8 x 8, current 1366 x 768, maximum 8192 x 8192 VGA-0 disconnected (normal left inverted right x axis y axis) LVDS-0 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 309mm x 174mm 1366x768 60.0*+ HDMI-0 disconnected (normal left inverted right x axis y axis)

shaharil@busuk:~$ cvt 800 600 60 # 800x600 59.86 Hz (CVT 0.48M3) hsync: 37.35 kHz; pclk: 38.25 MHz Modeline "800x600_60.00" 38.25 800 832 912 1024 600 603 607 624 -hsync +vsync

shaharil@busuk:~$ xrandr Screen 0: minimum 8 x 8, current 1366 x 768, maximum 8192 x 8192 VGA-0 disconnected (normal left inverted right x axis y axis) LVDS-0 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 309mm x 174mm 1366x768 60.0*+ HDMI-0 disconnected (normal left inverted right x axis y axis)

shaharil@busuk:~$ xrandr --newmode "800x600_60.00" 38.25 800 832 912 1024 600 603 607 624 -hsync +vsync

shaharil@busuk:~$ xrandr --addmode LVDS-0 800x600_60.00 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 18 (RRAddOutputMode) Serial number of failed request: 27 Current serial number in output stream: 28

Shaharil Ahmad
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  • @JohnnyEnglish before you mark this as duplicate, please clarify that I want to stress out that this problem is the other way around. I already got my native resolution that is 1366x768 as default as the only option I have, what I want is other option than native, that is 800x600 or 1024x768 in full screen which I don't have option to choose. Thanks. – Shaharil Ahmad Jun 07 '14 at 17:44
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    the duplicate doesn't state on native resolution exactly, you can set any resolution you desire with that workaround :-) – JoKeR Jun 07 '14 at 17:47
  • @JohnnyEnglish Thanks for pointing that out, but I got error, shaharil@busuk:~$ xrandr --addmode LVDS-0 800x600_60.00 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 18 (RRAddOutputMode) Serial number of failed request: 27 Current serial number in output stream: 28 – Shaharil Ahmad Jun 07 '14 at 18:12
  • you mean you were adding this? e.g. xrandr --newmode "1600x900_60.00" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync – JoKeR Jun 07 '14 at 18:15
  • it should look exactly like in tutorial even if occasionally hit space but you should know that it's a very sensitive case :-) – JoKeR Jun 07 '14 at 18:17
  • @JohnnyEnglish I'm passing that step, this error occur when I try to add the new created resolution, xrandr --addmode LVDS-0 800x600_60.00 – Shaharil Ahmad Jun 07 '14 at 18:17
  • can you please show full line you're trying to add – JoKeR Jun 07 '14 at 18:20
  • there are hints yet in a question if something not working like this http://askubuntu.com/questions/186288/how-to-detect-and-configure-an-output-with-xrandr or this http://askubuntu.com/questions/63681/how-can-i-make-xrandr-customization-permanent – JoKeR Jun 07 '14 at 18:23
  • @JohnnyEnglish I edit my question. – Shaharil Ahmad Jun 07 '14 at 18:47
  • it worked with VGA, I have no clue maybe the cause of your connector LVDS, there still other way outs as I mentioned in my previous comment links. – JoKeR Jun 08 '14 at 09:03
  • @JohnnyEnglish Thank you very much, I guess so. In the mean time, I will try the other way outs, thanks. – Shaharil Ahmad Jun 08 '14 at 10:40
  • Hope you'll work it out :-) in these links basically all the information you need to configure screen resolution. p.s. you can also see the synapsis in terminal xrandr --help – JoKeR Jun 08 '14 at 10:47

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