[Bug 99912] New: [KBL] [IGT] kms_setmode at basic test fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99912

            Bug ID: 99912
           Summary: [KBL] [IGT] kms_setmode at basic test fails
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: luis.botello.ortega at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org
     i915 platform: KBL
     i915 features: display/Other

Created attachment 129839
  --> https://bugs.freedesktop.org/attachment.cgi?id=129839&action=edit
dmesg.log

HW config
===============================
Processor Number                                i7-7500U
Processor Graphics                              Intel® HD Graphics 620
Graphics Base Frequency                         300.00 MHz
Graphics Max Dynamic Frequency                  1.05 GHz
Graphics Video Max Memory                       32 GB
Graphics Output                                 eDP/DP/HDMI/DVI

SW config
=================================
Kernel version : 4.10.0-rc8-e80b772
commit e80b772bf85da72c46b582e7c4f7b0d861cb4669
    drm-tip: 2017y-02m-14d-22h-44m-17s UTC integration manifest
Component         : drm
        tag       : libdrm-2.4.75-6-gec80fd3
        commit    : ec80fd3
 Component         : cairo
        tag       : 1.15.4-6-g5854dd9
        commit    : 5854dd9
Component         : intel-gpu-tools
        tag       : intel-gpu-tools-1.17-240-gca2ba47
        commit    : ca2ba47

Steps
====================================
./kms_setmode --run-subtest basic

Program output
=====================================
Testing: basic 1 connector combinations
  Test id#1 CRTC count 1
    CRTC[31] [Pipe A] Mode: 1920x1080 at 60Hz Connectors: DP-1[47]
Expected frametime: 16667us; measured 16666.6us +- 4.160us accuracy 0.07% [0.84
scanlines]
  Test id#2 CRTC count 1
    CRTC[38] [Pipe B] Mode: 1920x1080 at 60Hz Connectors: DP-1[47]
Expected frametime: 16667us; measured 16666.8us +- 4.891us accuracy 0.09% [0.99
scanlines]
  Test id#3 CRTC count 1
    CRTC[45] [Pipe C] Mode: 1920x1080 at 60Hz Connectors: DP-1[47]
Expected frametime: 16667us; measured 16666.7us +- 6.006us accuracy 0.11% [1.22
scanlines]
(kms_setmode:1673) CRITICAL: Test assertion failure function check_timings,
file kms_setmode.c:495:
(kms_setmode:1673) CRITICAL: Failed assertion: accuracy < line_time(kmode)
(kms_setmode:1673) CRITICAL: vblank accuracy (18.018us, 0.1%) worse than a
scanline (14.815us)
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [test_combinations+0x1057]
  #2 [main+0x1f5]
  #3 [__libc_start_main+0xf1]
  #4 [_start+0x29]
  #5 [<unknown>+0x29]
Subtest basic failed.
**** DEBUG ****
(kms_setmode:1673) INFO: Testing: basic 1 connector combinations
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920,
height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=1,
pitch=7680)
(kms_setmode:1673) INFO:   Test id#1 CRTC count 1
(kms_setmode:1673) INFO:     CRTC[31] [Pipe A] Mode: 1920x1080 at 60Hz Connectors:
DP-1[47]
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920,
height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=2,
pitch=7680)
(kms_setmode:1673) INFO: Expected frametime: 16667us; measured 16666.6us +-
4.160us accuracy 0.07% [0.84 scanlines]
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920,
height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=3,
pitch=7680)
(kms_setmode:1673) INFO:   Test id#2 CRTC count 1
(kms_setmode:1673) INFO:     CRTC[38] [Pipe B] Mode: 1920x1080 at 60Hz Connectors:
DP-1[47]
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920,
height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=4,
pitch=7680)
(kms_setmode:1673) INFO: Expected frametime: 16667us; measured 16666.8us +-
4.891us accuracy 0.09% [0.99 scanlines]
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920,
height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=5,
pitch=7680)
(kms_setmode:1673) INFO:   Test id#3 CRTC count 1
(kms_setmode:1673) INFO:     CRTC[45] [Pipe C] Mode: 1920x1080 at 60Hz Connectors:
DP-1[47]
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920,
height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1673) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=6,
pitch=7680)
(kms_setmode:1673) INFO: Expected frametime: 16667us; measured 16666.7us +-
6.006us accuracy 0.11% [1.22 scanlines]
(kms_setmode:1673) CRITICAL: Test assertion failure function check_timings,
file kms_setmode.c:495:
(kms_setmode:1673) CRITICAL: Failed assertion: accuracy < line_time(kmode)
(kms_setmode:1673) CRITICAL: vblank accuracy (18.018us, 0.1%) worse than a
scanline (14.815us)
****  END  ****
Subtest basic: FAIL (6.348s)

Please check the attached dmesg.log

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