On Sun, Jul 1, 2012 at 12:07 PM, Frank Peters <frank.pet...@comcast.net> wrote: > On Sun, 1 Jul 2012 12:39:07 -0400 > Frank Peters <frank.pet...@comcast.net> wrote: > >> >> After configuring with the same .config file that I used for 3.4.0, >> the new 3.4.4 kernel boots but it cannot read the USB keyboard. >> Presumably the USB mouse is also affected. >> > > The problem has been traced to a certain configuration parameter. > > In the "General setup" options for kernel .config file, there > is an option called "Configure standard kernel features (expert users)." > There is also an associated admonition: "Only use this if you really > know what you are doing." > > Since the help descriptions for these options are fairly easy to understand > I decided to manually set some of these options. For reasons that I > can't understand this caused the USB problems. Setting this option > to "No" fixed everything and now the kernel-3.4.4 works nicely. > > It would be beneficial if anyone who truly is an "expert" could comment > on how setting these options could wreck the USB system.
I am not an expert and don't know about your particular options that were enabled/disabled, but on my laptop I had to ensure the USB modules were loaded in a certain order. In my case my laptop supports EHCI and UHCI, but I had to set EHCI as built-in and UHCI as module (or I probably could have just blacklisted UHCI). Basically, if UHCI got loaded first it would cause strangeness.
