I am right now trying DSL on a very conventional PC which has a ASUS A7N8X motherboard and AMD XP-2500 processor.
DSL has a definite confusion when it comes to PS/2 mouse detection/operation. Five re-boots so far, each time trying variations to the startup. Each time ends up in a desktop where a mouse movement is doing
something, but it is random and uncontrolled.
There are some things we notice on the way..
1. The mouse
was detected as PS/2 mouse on device /dev/psaux. This gets ignored later.
2. In my case, DSL launches into "xsetup", no matter I include "xsetup" in the boot option or not. During xsetup, the "PS2" option does become available "for newer computers". It still fails.
3. I have a earlier version of DSL which I abandondoned because of this same inability to get it going. KNOPPIX, seems to do very similar, if not identical startup tests, and always manages to find and get the mouse working with no problem.
I would love to explore DSL some, but this has become a near-permanent stumble.