I have upgraded to Alien Bob's KDE 4.6.5 and works very well except for one pesky annoyance with USB device autodetection and mounting.
No matter what I plug in (flash drives, camera) the Device Notifier widget stubbornly says "No devices available". If I run
I see the kernel has detected the device just fine and provided a node in /dev.
I can (as root) mount the drives manually, but they then become read-only for regular users. If I put entries in /etc/fstab then I can mount them as regular users, but of course I cannot predict and put into fstab all the possible /dev nodes which will be set up (/dev/sdd, /dev/sde1 etc ...).
Looking through this and other forums it would appear that writing or modifying udev rules in /lib/udev/rules.d might be a way forward but this sounds borderline dangerous to me. Plus it feels like it's something more simple since it worked fine under stock KDE as provided by Slackware 13.37.
Also while I can work around some of the mounting problems when I am dealing with removable drives, this does not help when the camera is connected as an "MTP" device, which previously worked and was notified as a camera which could be looked at by digikam etc.
Things I have checked: I am a member of plugdev. I have set "Enable automatic mounting of removable devices" in System Settings > Removable Devices.
Grateful for any pointers as to what I may need to fix.