Bug 97741

Summary:	hid-logitech-dj drops connection after idle period
Product:	Drivers	Reporter:	Chris Zimmermann (monochromec)
Component:	Bluetooth	Assignee:	linux-bluetooth (linux-bluetooth)
Status:	NEW ---
Severity:	normal
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.16.0-33	Subsystem:
Regression:	No	Bisected commit-id:

Description Chris Zimmermann 2015-05-05 11:11:51 UTC

This bug surfaced when I tried to connect a Logitech K400r keyboard to an Athlon(tm) II X2 245e based system running kernel 3.13.0-51 (64 bit). I was able to reproduce the same issue on 64 bit kernels 3.16.0-33, 3.16.0-34 and 4.0.1-1 (all Ubuntu versions apart from the last which is Arch running on an Atom N540).

Symptoms are as follows: kernel accepts key presses from the keyboard but stops after a while. Bluetooth status of the device is then "offline" as reported by "solaar-cli show" which is using HIDAPI internally via Python. Double-checked that autosuspend in usbcore is disabled.

Let me know if you need more details.

Comment 1 Chris Zimmermann 2015-05-06 11:54:08 UTC

H/w checks out OK as connection is stable under Win7, 8.1 and OSX 10.10.