ModeX 320x240 not working in full screen



I’m trying to get testsprite.c SDL test program to work with ModeX 320x240 full screen on the Linux console using SVGAlib as backend for LibSDL 1.2.15.

Couldn’t set 320x240 video mode: No video mode large enough for 320x240.

I can get 320x200 normal VGA mode, but no luck with 320x240. Is that mode not added to libSDL 1.2? I can get that mode working under pure SVGAlib.