[Bug 29050] Re: cupsys does not automatically detect parallel printer

[Pascal De Vuyst]

> The problem here was that CUPS checked whether the "lp" module 
> was loaded, and if not, it loaded both "lp" and "ppdev". With "lp" 
> already loaded at CUPS startup (the usual case), CUPS did not load 
> any module, so "ppdev" was not loaded again.

The usual case is that the lp module is loaded at boot because it is present in /etc/modules.
Simple workaround: removing lp from /etc/modules and rebooting fixes parallel printer autodetection for Dapper and Edgy.

-- 
cupsys does not automatically detect parallel printer
https://launchpad.net/bugs/29050