I have a dual monitor setup. 2nd monitor has a VGA connection. Resolution 1366x768 not found in display settings or randr. How do I add resolution 1366x768 to output. I have tried this:

VGA-0 connected primary 1024x768+0+190 (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 

Did xrandr -s 1366x768:

Size 1366x768 not found in available modes

And xrandr --output vga-0 --mode 1366x768:

warning: output vga-0 not found; ignoring

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1 Answer

And xrandr --output vga-0 --mode 1366x768:
warning: output vga-0 not found; ignoring

Terminals are case sensitive(may not be for windows BUT), vga-0 is not equal to VGA-0 and hence the problem.

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Did xrandr -s 1366x768:
Size 1366x768 not found in available modes

You can create a custom screen resolution when not listed and your display supports it. Check this ubuntu handbook guide :

If you want to follow the part

IMPORTANT: To make Ubuntu remember the new created screen resolution at next start, you have to edit the .profile via command:

Then to avoid the sudo: no tty present and no askpass program specified error after each login, you might follow a working answer of this StackOverflow Question :