second cd drive only detected occasonally

[frank brierley]

Hi,

I have a DVD drive as secondary slave (IDE) and a cd burner as secondary 
master.  Both drives are detected by BIOS and by windows.  However freebsd 
assignes a device to the cd burner (samsung) only every now and then.

Checking dmesg and only acd0 will usually appear.  After a reboot there is 
a fairly good chance that acd1 will appear.

I've build and installed a current world and kernel cvsup 4.8 yesterday and 
changed the IDE ribbon.

does anyone have any ideas?

Frank