Flashing the recent BIOS update (FBKTA5A released 2015-01-06) resolved the
problem for me:
http://support.lenovo.com/downloads/ds035753
Shutdown works now with kernel 3.13.0-44.
As I did a bisect from 3.13.0-43 to 3.13.0-44 before I did the BIOS
update here's the result anyway:
01414f897d20874f6f5d7ef2f756f5bf2df526fc is the first bad commit
commit 01414f897d20874f6f5d7ef2f756f5bf2df526fc
Author: Denis Turischev <denis.turisc...@compulab.co.il>
Date: Tue May 20 14:00:42 2014 +0300
xhci: Switch only Intel Lynx Point-LP ports to EHCI on shutdown.
BugLink: http://bugs.launchpad.net/bugs/1402853
commit 0a939993bff117d3657108ca13b011fc0378aedb upstream.
Patch "xhci: Switch Intel Lynx Point ports to EHCI on shutdown."
commit c09ec25d3684cad74d851c0f028a495999591279 is not fully correct
It switches both Lynx Point and Lynx Point-LP ports to EHCI on shutdown.
On some Lynx Point machines it causes spurious interrupt,
which wake the system: bugzilla.kernel.org/show_bug.cgi?id=76291
On Lynx Point-LP on the contrary switching ports to EHCI seems to be
necessary to fix these spurious interrupts.
Signed-off-by: Denis Turischev <de...@compulab.co.il>
Reported-by: Wulf Richartz <wulf.richa...@gmail.com>
Cc: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
:040000 040000 2017c75e797dd6fde9e00f73db85fa32eeb19775
7d11924d8262e57dab18920cf19ec4c14e93db5f M drivers
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https://bugs.launchpad.net/bugs/1320282
Title:
[Lenovo ThinkCentre M93p] reboots instead of shutting down
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