I have a Canon EOS SL1 camera (also known as an EOS 100D). With Fedora 20 and 21, when I connected the camera to a USB port, it was recognized and the KDE device notifier would ask whether I wanted to open it with the file manager or download photos with digikam. Digikam also recognized the camera when it was connected. The camera is supported by libghoto2 and uses the PTP protocol. But with Fedora 22 and 23, the camera is not fully recognized and I can't download photos directly from the camera. (I can use a card reader, of course.) In /var/log/messages, I see the following: Nov 11 11:17:01 g kernel: usb 4-1.4.1: new high-speed USB device number 9 using ehci-pci Nov 11 11:17:02 g kernel: usb 4-1.4.1: New USB device found, idVendor=04a9, idProduct=3270 Nov 11 11:17:02 g kernel: usb 4-1.4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Nov 11 11:17:02 g kernel: usb 4-1.4.1: Product: Canon Digital Camera 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...
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