Installing 15khz desktop resolution on Linux x11

[Edomatic]

The easiest and best way to perfom this is to create a file in your home directory named ".xprofile" without the quotes.
In this file you will need to add some xrandr command line code. Replacing $output with your output ID that your CRT will be connected to (VGA-0, DVI-1 etc). To find this ID load up a terminal windows and just type "xrandr | grep " connected" | awk '{print$1}' " without the double quotes. this will list all connected devices.

Code:

xrandr --newmode "700x480_59.941002" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync && xrandr --newmode "700x480_59.941002" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync
xrandr --addmode $output 700x480_59.941002
xrandr --output $output --mode 700x480_59.941002

Or for simplicity you could run my 15hkz installer which can be found here. Will automate this process for you.

Hi Alphanu

Is there a way i can add the 640x480@60 to your setup after thescript was run using this xrandr maybe?
I made some tests and seems to work ok with mame and fb alpha games but vertical games revert to a small window interlaced and when you exit the game then retroarch also stays in that small window unless i launch a regular horizontal game again , then the window restores back to fullscreen
I love what you achieved here already doh! Amazing work