George Avrunin writes:
Nov 11 11:17:02 g kernel: usb 4-1.4.1: Manufacturer: Canon Inc. Nov 11 11:17:02 g mtp-probe: checking bus 4, device 9: "/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.4/4-1.4.1" Nov 11 11:17:02 g mtp-probe: bus: 4, device: 9 was not an MTP device The device notifier doesn't notice the camera (it says "no devices available) and digikam can't see it. I've tried other cables and usb ports (and even another computer). I use KDE, but this doesn't look like it's a KDE issue. The only other camera with a usb connection thta I have at hand right now is an old Canon Powershot G9, which gets similar messages about not being an MTP device (but /var/log/messages shows a serial number for the camera). This also worked with earlier Fedoras. I'm not sure what changed from F21 to F22. I was hoping that things would work again with F23. Any suggestions? I don't understand udev very well...
May or may not be related, but I had a similar issue with Gnome and my MP3 player after upgrading to F21, not F22. So, it is probably a slightly different, but likely a related issue.
Anyway, my MP3 player is a USB storage device, and after an upgrade to F21 something in Gnome-land apparently got the bright idea that it's now an MTP device. Hilarity ensued.
I happened to have a netbook that wasn't beefy enough for Gnome, and I had the XFCE spin running on it already. On a lark, I plugged in the MP3 player, and it came up like nothing has ever happened. Fully functional. I switched to XFCE on my main server, and suddenly it could talk to the MP3 player again.
I dutifully opened a bug, included syslog dumps, USB device IDs, etc… It was all for nothing, the ticket had no activity after I created it, and it's about to be closed together with all other unresolved F21 bugs. I don't really care much for it, since all my desktops and laptops are running XFCE now.
So, try switching to XFCE. You may need to create a new user account, though. Even after I had reconfigured my user account for XFCE, for some reason it still had a bunch of Gnome stuff refusing to go away.
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