[kio-extras] [Bug 497539] Dolphin stopped recognizing Android devices

[Helmut Walle]

https://bugs.kde.org/show_bug.cgi?id=497539

Helmut Walle <helmut.walle at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|24.12.0                     |24.12.1

--- Comment #5 from Helmut Walle <helmut.walle at gmail.com> ---
Further details from a Tumbleweed system with recent update status:

NAME="openSUSE Tumbleweed"
# VERSION="20250206"

Packages (QUESTION: why do we have both kio-extras and kio-extras5, and which
one does kio-5.xxx use? Is kio by any chance using kio-extras5 and
kio-fuse-5.xxx, whereas dolphin is now using kio-extras-24.xxx? That could
possibly explain the disconnect - or is this a red herring?):

kio-5.116.0-1.2.x86_64
kio-extras-24.12.1-1.1.x86_64
kio-extras5-24.02.2-1.2.x86_64
kio-fuse-5.1.0-1.4.x86_64
libmtp9-1.1.22-1.2.x86_64
libmtp-udev-1.1.22-1.2.x86_64
dolphin-24.12.1-1.2.x86_64

android-file-transfer-linux-4.3.0~git.20240730T195303.cf7036c7f7df-1.2.x86_64

Tests - mobile phones tried: Samsung Galaxy A50 and A55:

1. Plug in A50 (screen unlocked)
2. Responses: on the phone: Allow/Deny prompt as expected; on PC/TW: device
notification in sys tray as expected.
3. Hit "Allow" on the phone
4. Hit "Open in File Manager" on PC / sys tray pop-up
5. Response: Dolphin opens in user's home directory; Dolphin "Devices" list
does not show phone - FAIL!
6. Enter "mtp:/" into Dolphin location field.
7. Response: Dolphin shows phone now as it should. Access to phone storage,
both internal ("Phone") and Card works as it should have after step 4. above.
But obviously entering "mtp:/" should not be needed to get there...

Further tests:

- I have performed everything above again, and it is very repeatable.
- Testing with the other phone model, A55, produces the same results.
- Android File Transfer fails with "No MTP devices found", although it does see
a USB device.
- lsusb sees the phone(s): "Bus 003 Device 017: ID 04e8:6860 Samsung
Electronics Co., Ltd Galaxy series, misc. (MTP mode)"
- dmesg says something like:

[ 1368.284329] [   T5446] usb 3-4: new high-speed USB device number 17 using
xhci_hcd
[ 1368.409102] [   T5446] usb 3-4: New USB device found, idVendor=04e8,
idProduct=6860, bcdDevice= 5.04
[ 1368.409114] [   T5446] usb 3-4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1368.409117] [   T5446] usb 3-4: Product: SAMSUNG_Android
[ 1368.409120] [   T5446] usb 3-4: Manufacturer: SAMSUNG
[ 1368.409123] [   T5446] usb 3-4: SerialNumber: [...]
[ 1368.411543] [   T5446] cdc_acm 3-4:1.1: ttyACM0: USB ACM device

What other information can we provide to narrow this down?

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