Bug 113211

Summary:	Intel i7-5557U / NUC5i7 failures since kernel 4.2
Product:	Drivers	Reporter:	C. Kimna (kimna)
Component:	Video(DRI - Intel)	Assignee:	intel-gfx-bugs (intel-gfx-bugs)
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	intel-gfx-bugs
Priority:	P1
Hardware:	Intel
OS:	Linux
Kernel Version:	4.2	Subsystem:
Regression:	No	Bisected commit-id:

Description C. Kimna 2016-02-25 23:59:14 UTC

Following message during shutdown - about 50 lines with:
drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!

Tested with various distributions on two Intel NUC5i7 devices (OpenSuSE 13.2, 42.1 with KDE4/KDE5 and Ubuntu MATE 15.10 Live with Compiz). All the same on all tests.

kernel 4.1.12 works on desktop (some juddering on games)
kernel >4.2 doesn't work without erros

Comment 1 Jani Nikula 2016-02-29 09:51:50 UTC

Fixed by

commit ccda3a728f7098523998079e789b8135746bf8a8
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Thu Jan 7 10:29:10 2016 +0200

    drm/i915: shut up gen8+ SDE irq dmesg noise, again

in v4.5.

Comment 2 Jani Nikula 2016-02-29 09:52:06 UTC

Also, you can safely ignore the error.