The i915 driver snapshot from freedesktop.org fixed my problems with the video on my Acer Aspire 1690. It even allows the graphical boot (aka rhgb) to function again.
But I still can’t use the DVD player. I still get lots of errors related to accessing hdb in /var/log/messages. I’ll have to dig into that one later.
Just wish I could more easily get the ACPI thing fixed so I could keep an eye on battery levels. That’s a longer term project – maybe something for the weekend.