https://bugzilla.kernel.org/show_bug.cgi?id=211525 Bug ID: 211525 Summary: USB Canon DSLR camera seen (lsusb/dmesg) but no longer accessible (not mountable) Product: Drivers Version: 2.5 Kernel Version: 5.4.0-65-generic Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: lgd.beauchamp@xxxxxxxxx Regression: No I use a DSLR Canon EOS 77D without any problem since I installed Linux on my computer (now I have Kubuntu 20.04LTS, kernel 5.4.0-65-generic). Tonight I tried to communicate with it with the application gphoto2, its library libgphoto2 and simply by mounting it to access the photographs on the SD card and it no longer works. 1) I see the camera with lsusb and dmesg. 2) The "new device" pop-up indicates when I plug it. 3) It is not mounted correctly, I cannot see it in the file system. 4) If I try to communicate with it using gphoto2 it fails ("the indicated port is not found") This was performed on a desktop with a MSI motherboard MPG Z390 Gaming Plus, with a Core I7 9700K if it can be of any help... I tried the same operations on a Raspberry Pi 4B and I succeeded, no problem. I also succeeded on Win 10 (sorry...! ;-) ) so I can assume it is not the DSLR that is faulty. I tried many ports on my computer, with and without a hub, and it always shows the same behavior. I would like to precise that my system is up-to-date, I performed a few apt update/upgrade during the tries. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.