I wrote: > Yeah, I wonder how much we can strecth those timings. At least in > theory, a digital display doesn't really need a lower bound for > pixel frequency and such. So maybe even a better approximation of > full QVGA resolution is possible.
ubb-vga now has a "double" mode in which it uses a set/clear pair for each pixel instead of alternating set and clear. This improves the resolution but makes the timing quite VGA-unlike. Single: http://downloads.qi-hardware.com/people/werner/ubb/vga/ubb-vga-screenshot.jpg Double: http://downloads.qi-hardware.com/people/werner/ubb/vga/ubb-vga-double.jpg For reference, the original screen content is here: http://downloads.qi-hardware.com/people/werner/ubb/vga/jlime-desktop-original.png One can see that about five pixels get chopped off the left and about 25 pixels off the right. I've tried this only with one monitor so far and don't know yet how palatable others will find this signal. For those interested in how the mappings work, here's a diagram: http://downloads.qi-hardware.com/people/werner/ubb/vga/mapping.pdf And here's the description (section "Single/double mode"): http://projects.qi-hardware.com/index.php/p/ben-blinkenlights/source/tree/master/ubb-vga/README Last but not least, Wolfgang has made a better conversion of my ubb-vga video (uncut): http://en.qi-hardware.com/w/images/7/76/Ben_UBB_VGA.ogv Thanks ! - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
