[VGA] FEX configuration for VGA 640x480 for A13

[MBR]

Hello,

when I was searching for someting in my "old hardware collection", I discovered that I still have an old BW CRT VGA monitor that I got for free many years ago and this beast is still working. But it's VGA-only monitor, it does not support higher resolution than 640x480. So I was thinking about connecting it to A13, because the hardware should support it (there is even a line /* DISP_VGA_H640_V480  0X6 */ in  disp_clk.c of the sunxi display driver), but it seem that there is no ready-to-use FEX file (or script.bin) for such resolution.

I discovered a similar topic on this forum about the CGA resolution in https://www.olimex.com/forum/index.php?topic=2100.msg9574, but I need VGA timings, not CGA. Did somebody try to make working 640x480 VGA mode or will I have to construct them myself from XServer modelines?

Thanks in advance.