A SiS 6326 AGP video chipset using a vesa driver works just fine with all modes of a CRT, but largely fails with a couple different LCD's. I can get the LCD's to run with X_MODE_0=640x480 in lts.conf, but with any higher resolutionit fails. One monitor displays "Cannot display this video mode" and the other remains black or blank.

Using theresults of cvt, I tried these newly supported commands in lts.conf:
XRANDR_COMMAND_0="xrandr --newmode 1024x768 63.50 1024 1072 1176 1328 768 771 775 798 -hsync +vsync"
XRANDR_COMMAND_1="xrandr --addmode default 1024x768"
XRANDR_COMMAND_2="xrandr --output default --mode 1024x768"

But that failed both with and without X_MODE_0=640x480 in lts.conf.

Are my xrandr commands correct? (I used "default" as the output name because that is what "xrandr -q" returns in its results.) Can anything think of another approach? (And yes, the Xorg sis driver has already been tried.) I might add that all manually entered xrandr commands produce results that begin: "xrandr: Failed to get size of gamma for output default."
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