Topic: Flickerin' screen solution (?)
Ok, there are many people having issues with their LCDs flickering. Possible reasons might be the software hysteresis, fedback (not likely, but who knows...), and (it just ocured to me) the 60Hz light switching.
I was checking the schematics for chumby and it seems the easyest solution for this problem might be adding a cap to pins 3 and 4 of the light/bend sensors ADC. Any cap from 10uF to 47uF (10V) should do the trick. Negative lead goes to pin 3 (Gnd) and positive lead goes to pin 4 (IN).
I don't own a chumby so there is no way I can test this. If anyone out there tries this out please post your results.
As a recomendation.... unless you know what you are doing don't solder directly to the IC pins. Follow the PCB tracks and scrape the mask just a little to expose the copper. Pin 3 already has a via next to it so that is a good spot to solder.
and btw, the IC is marked as component "U503".It's very close to the light sensor.
Don't be afraid to try this. In case it doesn't work just desolder the cap. After all it's only 2 wires you are soldering.
Let me know if it works!