Bug 93127 - [SKL] [drm:check_wm_state [i915]] *ERROR* mismatch in DDB state pipe
Summary: [SKL] [drm:check_wm_state [i915]] *ERROR* mismatch in DDB state pipe
Status: CLOSED WORKSFORME
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-11-26 15:55 UTC by Sverd Johnsen
Modified: 2017-07-24 22:44 UTC (History)
1 user (show)

See Also:
i915 platform: SKL
i915 features: display/Other

Attachments

Description Sverd Johnsen 2015-11-26 15:55:17 UTC 
Found these in dmesg.

[27185.721638] [drm:check_wm_state [i915]] *ERROR* mismatch in DDB state pipe A plane 1 (expected (0,0), found (0,438))
[27185.721666] [drm:check_wm_state [i915]] *ERROR* mismatch in DDB state pipe A cursor (expected (0,0), found (438,446))

Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
Linux foo 4.3.0-1-bar #1 SMP PREEMPT Sun Nov 22 23:37:14 CET 2015 x86_64 GNU/Linux

Don't have any issues except spam from Bug 89055
Comment 1 Jani Nikula 2015-11-27 08:18:49 UTC 
(In reply to Sverd Johnsen from comment #0)
> Found these in dmesg.

Please try v4.4-rc2 or later.

Please add drm.debug=14 module parameter and attach complete dmesg from boot to the problem.
Comment 2 Jani Nikula 2016-04-25 09:31:24 UTC 
Timeout, closing. Please reopen if the problem persists with latest kernels.

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