glamo gdrm,

Mon May 31 08:59:23 CEST 2010

Hi,
I do not know the right settings for 640 480 on the glamo. But
inverting will not work. You should try the output of gtf or cvt:
$ gtf 480 640 60
Modeline "480x640_60.00" 24.82 480 504 552 624 640 641 644 663 -HSync +Vsync
$ cvt 480 640 60
Modeline "480x640_60.00" 24.25 480 504 544 608 640 643 653 665 -hsync +vsync
$ gtf 640 480 60
Modeline "640x480_60.00" 23.86 640 656 720 800 480 481 484 497 -HSync +Vsync
$ cvt 640 480 60
Modeline "640x480_60.00" 23.75 640 664 720 800 480 483 487 500 -hsync +vsync
regards
Andreas