Bug 73961

Summary:	bluetooth stop to work after a few second
Product:	Drivers	Reporter:	Marc Collin (marc.collin)
Component:	Bluetooth	Assignee:	linux-bluetooth (linux-bluetooth)
Status:	NEW ---
Severity:	normal	CC:	alan, johan.hedberg
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.14.0	Subsystem:
Regression:	No	Bisected commit-id:

Description Marc Collin 2014-04-13 21:45:09 UTC

i have a lenovo s430, since kernel 3.14, my mouse stop to work after a few second, minute.

If I stop using the mouse for a few seconds, the mouse stops working. When I turn it off, the bluetooth applet on my desktop shows it as connected indefinitely. I
can fix this situation if i do a suspsend to ram.

my card
Dual Band Wireless-AC 7260
Bus 001 Device 003: ID 8087:07dc Intel Corp.

Comment 1 Johan Hedberg 2014-04-14 14:28:54 UTC

Does disabling USB auto-suspend for the device help? You can do that e.g. with the powertop tool or by doing:

echo 'on' > '/sys/bus/usb/devices/1-3/power/control'

Comment 2 Marc Collin 2014-04-14 23:53:05 UTC

it seem to fix the problem, after 2 hours, that work without problem

Comment 3 Marc Collin 2014-04-17 02:03:59 UTC

if i do a supsend to ram, i seem i need to rerun this command

Comment 4 Alan 2014-04-22 16:38:48 UTC

Do we need to get a USB quirk in for this one to stop it autosuspending.

Comment 5 Johan Hedberg 2014-04-22 18:00:20 UTC

I believe the plan is to revert the patch that enabled auto-suspend for this hardware to begin with. This revert should be going to the stable tree as well as the 3.15-rc series.

Comment 6 Johan Hedberg 2014-05-21 13:33:35 UTC

For the record, the revert has already made it to Linus's tree and is part of 3.15-rc5.