According to the
Xorg.0.log you posted at pastebin.ca, (lines 580-585), X should be able to do these resolutions
Code:
[ 1084.171] (II) RADEON(0): Modeline "1280x800"x60.0 69.30 1280 1296 1344 1353 800 801 804 854 -hsync -vsync (51.2 kHz)
[ 1084.171] (II) RADEON(0): Modeline "1280x720"x59.9 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync (44.8 kHz)
[ 1084.171] (II) RADEON(0): Modeline "1152x768"x59.8 71.75 1152 1216 1328 1504 768 771 781 798 -hsync +vsync (47.7 kHz)
[ 1084.171] (II) RADEON(0): Modeline
x59.9 63.50 1024 1072 1176 1328 768 771 775 798 -hsync +vsync (47.8 kHz)
[ 1084.171] (II) RADEON(0): Modeline "800x600"x59.9 38.25 800 832 912 1024 600 603 607 624 -hsync +vsync (37.4 kHz)
[ 1084.171] (II) RADEON(0): Modeline "640x480"x59.4 23.75 640 664 720 800 480 483 487 500 -hsync +vsync (29.7 kHz)
So you can edit the
Screen Section into something like this:
Code:
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x720" "1152x768" "1024x768"
EndSubSection
EndSection