Parallel Driver(s) Broke in 2.6.31

[Steve Meisner <smeisner@charter.net>]

I posted to the Mandriva forum with no luck yet.  I recently upgraded to 
Mandriva 2010.0 and in doing so lost ability to use my parallel printer.  
After many hours of debugging effort and finding nothing in logs or 
hardware/driver error messages, I went on a hunch that it could be related to 
the kernel.  So I rolled back to the 2009.1 kernel 2.6.29 and printing 
returned.  I don't know how to proceed with determining the root cause as I 
cannot find any error in the logs or differences in hardware detection and 
module loading.  I don't even know the hierarchy of the modules involved 
(parport, parport, pc, lp, and ppdev).   Should I start diffing those modules 
and see if I get lucky applying hacking 101 techniques?  Please CC me 
(smeisner@charter.net) if you have any suggestions (except for buying a new 
printer).
Thanks,

-- 

Steve Meisner