[Bug 69692] New: [BYT]igt/sysfs_rc6_residency fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69692

          Priority: medium
            Bug ID: 69692
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [BYT]igt/sysfs_rc6_residency fails
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

System Environment:
--------------------------
Platform:  Baytrail
Kernel: (drm-intel-nightly)565d170f33cc46ec4b33911c9302a506fe72fd60

Bug detailed description:
-----------------------------
It fails on Baytrail with -nightly kernel.

output:
Diff was too high. That is unpossible

dmesg:
[  114.158881] [drm:i915_driver_open],
[  114.158913] [drm:intel_crtc_cursor_set], cursor off
[  114.158918] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x
y) (0 0)
[  114.158926] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:3], mode_changed=0, fb_changed=0
[  114.158931] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  114.158936] [drm:intel_crtc_cursor_set], cursor off
[  114.158939] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
[  114.158943] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:6], mode_changed=0, fb_changed=0
[  114.158947] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  114.158968] [drm:i915_driver_open],
[  114.158980] [drm:intel_crtc_cursor_set], cursor off
[  114.158984] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x
y) (0 0)
[  114.158989] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:3], mode_changed=0, fb_changed=0
[  114.158993] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  114.158997] [drm:intel_crtc_cursor_set], cursor off
[  114.159000] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
[  114.159003] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:6], mode_changed=0, fb_changed=0
[  114.159007] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  114.159021] [drm:i915_driver_open],
[  114.159426] [drm:intel_crtc_cursor_set], cursor off
[  114.159431] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x
y) (0 0)
[  114.159436] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:3], mode_changed=0, fb_changed=0
[  114.159440] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  114.159444] [drm:intel_crtc_cursor_set], cursor off
[  114.159447] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
[  114.159450] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:6], mode_changed=0, fb_changed=0
[  114.159454] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  119.159656] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  119.159729] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  119.159773] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  119.159814] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  122.160195] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  122.160246] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  122.160288] [drm:intel_enable_rc6], RC6 and deep RC6 enabled
[  122.160405] [drm:i915_driver_open],
[  122.160426] [drm:intel_crtc_cursor_set], cursor off
[  122.160431] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x
y) (0 0)
[  122.160438] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:3], mode_changed=0, fb_changed=0
[  122.160443] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  122.160448] [drm:intel_crtc_cursor_set], cursor off
[  122.160451] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
[  122.160454] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:6], mode_changed=0, fb_changed=0
[  122.160458] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  122.160472] [drm:i915_driver_open],
[  122.161609] [drm:intel_crtc_cursor_set], cursor off
[  122.161614] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x
y) (0 0)
[  122.161620] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:3], mode_changed=0, fb_changed=0
[  122.161624] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]
[  122.161628] [drm:intel_crtc_cursor_set], cursor off
[  122.161631] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
[  122.161634] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:6], mode_changed=0, fb_changed=0
[  122.161638] [drm:intel_modeset_stage_output_state], [CONNECTOR:16:eDP-1] to
[CRTC:3]

Reproduce steps:
----------------------------
1. ./sysfs_rc6_residency

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