Description of problem: ======================= I want to download photos from an Android phone to the Linux machine via the USB device. If you freshly log in, connect the device, start gwenview and download via gwenview, this works (although later, gwenview refuses to quit, another problem). If you freshly log in, start dolphin, connect the device, start gwenview, then you get "Could not claim USB device" message in gwenview. I do not know how to find out what is grabbing the USB device but it seems to be dolphin behaving badly. In my prior Fedora KDE version (version 29), I never managed to download anything with dolphin, but downloading with gwenview always worked regardless of circumstances. Version-Release number of selected component (if applicable): ============================================================= $ rpm --query dolphin dolphin-20.12.2-1.fc33.x86_64 $ rpm --query gwenview gwenview-20.08.1-1.fc33.x86_64 How reproducible: ================= Consistently
Here is the test scenario: ========================== - Fresh login - Connect Android phone - Launch gwenview via the KDE Disk and Devices widget in the taskbar "Download photos with Gwenview" - Phone does not allow access and gwenview protests: "unspecified error" - Stop gwenview - Allow access on the phone's side - Launch gwenview via the KDE Disk and Devices widget in the taskbar "Download photos with Gwenview" again - Snapshot of the photos appear - Quit gwenview - Start Dolphin - Launch gwenview via the KDE Disk and Devices widget in the taskbar "Download photos with Gwenview" - Could not read. Reason: "Could not claim the USB device" - Quit gwenview - Quit Dolphin - Launch gwenview via the KDE Disk and Devices widget in the taskbar "Download photos with Gwenview" - gwenview could still not read. Reason: "Could not claim the USB device" You need to restart the KDE session to get the USB device cleared.
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