Hi all, I've written a patch to allow adjustment of the contrast on the Passive (STN) LCD on older powerbooks. (only tested on my 1998 Wallstreet/233 so far). On my machine I needed it because the contrast was always reset to max (unreadable) after sleeping.
Currently, I just modified via-pmu.c and pmu.h to add functions to adjust the contrast and exposed them to userland via 2 new IOCTLs. If anyone is interested in trying it out, let me know and I can send you the patch or maybe post it here. cheers, John.
