Created attachment 1087458 [details] dmesg output Description of problem: Right after connecting android phone via usb, I see many USB disconnect in kernel logs. I cannot access the phone's storage, nor can I use adb / fastboot with it. I tried this with all usb ports and many cables. The phones are OK, they can connect just fine on my Windows 10 machine. Version-Release number of selected component (if applicable): 4.2.3-300.fc23.x86_64 How reproducible: Always Steps to Reproduce: 1. Connect phone to laptop via usb cable 2. Try to use adb / fastboot / mount mtp volume Actual results: Get disconnected. Logs are full of USB disconnect messages. Expected results: I should be able to use adb / fastboot / mount mtp volume without interruption. Additional info: See attachments for PCI / USB / dmesg info.
Created attachment 1087459 [details] lspci output
Created attachment 1087460 [details] lsusb -t output
Created attachment 1087461 [details] lsusb -v output
I tried with an LG G3 D852 and a LG Nexus 4 phone.
Same "repeated usb connect/disconnect" with a Xiaomi Mi2S, but I can access the phone storage and use adb/fastboot. In fact, the "repeated usb disconnect" stops as soon as I access the phone internal storage. During the "repeated usb connect/disconnect" event, phone icon on the desktop (xfce) shows up and disapears accordingly. I have to fastly click for it once it shows up, and as soon as I am in the internal storage, the "repeated usb connect/disconnect" stops, which is amazingly bizarre. Note : the "repeated usb connect/disconnect" happens during Fedora boot process, after grub.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 23 kernel bugs. Fedora 23 has now been rebased to 4.7.4-100.fc23. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 24 or 25, and are still experiencing this issue, please change the version to Fedora 24 or 25. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 4 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.