I have seen this very same problem and symptoms while installing Debian Testing on my friends Toshiba laptop.
My digital camera got detected and mounted but other devices do not work. If the device is plugged in before boot the device that I couldn't get working works; when unplugged and reinserted the device stops working.
I can get more information if required but the original post seems to have covered all the detail.
I have seen this very same problem and symptoms while installing Debian Testing on my friends Toshiba laptop.
My digital camera got detected and mounted but other devices do not work. If the device is plugged in before boot the device that I couldn't get working works; when unplugged and reinserted the device stops working.
I can get more information if required but the original post seems to have covered all the detail.