[comp.sys.mac.system] General CDEV; use of PAT vs ppat

rosen@cs.utexas.edu (Eric Carl Rosen) (01/19/91)

Often, after I've switched between screen depth modes (8 bit <--> 1 bit),
the standard General CDEV seems to get confused and uses the default monochrome
background pattern to draw the desktop even though I've previously set the   
background pattern to a color ppat via the CDEV. At present, for example, in
8 bit mode, the General CDEV uses the standard monochrome gray PAT  resource
to draw the background pattern AND refuses to present the color editing boxes
so I can again choose a color background pattern. In the past, I solved this
problem either by rebooting or, if that was unsuccesful, powering down.

Now, however, these methods do not reset whatever needs to be set in order to
let the General CDEV know I've got color. I've even gone to the lengths of    
reinstalling System 6.0.5 without success.

Can anyone explain this behavoir and/or provide a method I can use to fix the
problem? Is there some PRAM setting that needs to be reset?