Droid 4: USB OTG Works only with a Powered Y-cable, and crashes when unplugged

[lvw5264]

In the latest build of Maemo Leste, USB OTG now works on Droid 4 which is a major improvement, but only with a powered USB OTG Y-cable.

It is buggy and devices don't work properly when used with an unpowered USB OTG cable: the Droid 4 eventually crashes when a USB device is plugged in.

Another thing is that with the powered USB OTG Y-cable, usb devices work quite fine such as a Yubikey or a USB mouse or anything really: right up until the USB device is unplugged from the Y-cable, where the Droid 4 immediately crashes and turns off the display.

I then have to hard shutdown by holding the power button and volume down button for 20 seconds and then reboot, where the USB OTG Y-cable and device can be plugged in again, but the Droid 4 crashes and turns off the display again when the USB device is unplugged from the Y-cable again.

Give these a shot and its likely to be reproducible.

[MerlijnWajer]

I have seen mce crash on input device removal, but that should have been fixed. I assume your image is fully up to date?

[lvw5264]

Yes, I've been using the latest 20200323 and had updated it with apt upgrade 4 days ago.

[clort81]

In the latest build of Maemo Leste, USB OTG now works on Droid 4 which is a major improvement, but only with a powered USB OTG Y-cable.

Can you suggest a particular usb cable or hub that would work with otg function? This one maybe?

[IMbackK]

works fine now