I have experienced this same problem since KDE-3.5 - not being able to view the camera in konqueror as a regular user but can view and edit the camera pictures when logged in a root and it has still become an issue with KDE-4.10.5 so it has still not been resolved as of KDE4.10 and Slackware14.1. I have solved it this way.
My original configuration was KDE-4.10.5, libgphoto 2.5.2. I installed the camera thru System Settings - Digital Camera as a "Nikon D50 PTP" I then downloaded the latest libgphoto2-2.5.7 and edited "camlibs/ptp2/library.c" and changed the appropriate line for my camera - line 1054 as "Nikon:D50 ( PTP mode )" is changed to "Nikon:D50 PTP" so that this matches the KDE setting as close as possible and to reduce verbiage I changed line 2048 from "USB PTP Class Camera" to "USB PTP Camera". Back to the top of the source tree ./configure --prefix=/usr --libdir=/usr/lib64 so that the output code will overlay the original installed library. make, become superuser, make install I can now view the camera thru konqueror or dolphin as a regular user. This is still probably a permissions problem and KDE and the distributors are not setting permissions correctly -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1256591 Title: The system is unable to read from a PTP camera. To manage notifications about this bug go to: https://bugs.launchpad.net/digikam/+bug/1256591/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs