On Sun, 04 May 2008 08:49:33 -0500 Eric Olson <[EMAIL PROTECTED]> babbled:
> Ah darn, but at least it should work for presentations or > slideshows...and maybe pong :) if drivers support partial updates. > > Here are some framerate estimates -- feel free to correct me if anything > looks off: > (most devices mention USB 2.0, hopefully they also work with USB 1.1) > > QVGA: max: 13 FPS. > Assuming QVGA is supported in hardware/driver. > one of rasterman's earlier mails mentioned QVGA > is about 320*240*1.5bytes per frame > 640x480x8bit, max: 5 FPS > Some devices mention this mode (640x480x8bits) 1.5 bytes per pixel *IF* its yuv video data. for external display for presentations u'd be more looking at 2 bytes or 3 (16 or 24bpp) and thus... 8fps or less. qvga is really abysmal for projector display - u'll be looking at vga minimum for that kind of stuff... and then u're down to 2fps... :) basically "not worth it". > Note: USB 1.1: max: 12 Mbit/sec or 1.5 MBytes per sec > > > Here are some resources I found quickly while looking around. If > anybody tries one with the neo or freerunner, let us know. > http://www.winischhofer.eu/linuxsisusbvga.shtml > http://www.nslu2-linux.org/wiki/HowTo/AddVGAAdapter > http://wiki.laptop.org/go/Peripherals/USB_to_VGA > http://ubuntuforums.org/showthread.php?p=1521295 > > > Eric > > > Carsten Haitzler (The Rasterman) wrote: > > On Sun, 04 May 2008 12:30:40 +0200 Florian Rebstock > > <[EMAIL PROTECTED]> babbled: > > > >> Hello, > >> > >> what i ever want to know: > >> could it be possible - to connect the Freerunner with a external VGA > >> Display or Beamer ? > >> Because that would be pretty useful for small presentations or so... > > > > basically... no. > > > > u may try a usb vga out but it'll be slowwwww - usb1.1 only. so basically - > > no, not without extra external hardware and even hen... dubiously useful. > > > > > PS > > _______________________________________________ > Openmoko community mailing list > [email protected] > http://lists.openmoko.org/mailman/listinfo/community -- Carsten Haitzler (The Rasterman) <[EMAIL PROTECTED]> _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
