pmud vs. pbbuttonsd on iBook

[Tony]

I am new to running debian (testing) on my iBook 600MHz M8600LL/A, I 
have been using Yellow Dog for some time.  I have been able to 
successfully install pbpbbuttonsd so that I can use the dim/brightness 
buttons as well as the volume buttons.  I have also been able to install 
pmud to control the sleep mode of the ibook, however the two appear to 
be mutually exclusive.  If I try installing pmud it requires removal of 
pbbuttonsd and vise versa.  Is there a solution to this problem?

Tony