Here is what does and doesn't work for the PowerPro IV:28/IV-28A:
| Built-in 10/100 network | works |
| USB 2.0 | works (USB1.1 device tested) |
| CD burning | works |
| DVD movie playback | works (Xine must be updated with DVD support) |
| Built-in Audio | works (headphone out and mic in tested) |
| Floppy drive (optional) | works |
| Parallel port | works |
| 1394 Firewire | works |
| Built-in 802.11b | works ! |
| ACPI | somewhat (suspend to disk available on command or when closing lid - not enabled by default; Battery info is not reported correctly. ACPI conflicts with the modem and must be disabled for that) |
| PCMCIA controller | works |
| v.90 modem (winmodem) |
Does not work (The modem dials and sound can be heard. However, we never achieved a connection. It apparantly uses a Conexant chip) |
| Sony MemoryStick slot | Does not work (Device does not appear in lspci) |
| FiR/IrDA Infrared | untested |