[Bug 81697] [BYT Regression]"WARNING: CPU: 1 PID: 1234 at drivers/gpu/drm/i915/intel_dp.c:1184 intel_enable_dp+0x41/0x79 [i915]()" after boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81697

--- Comment #1 from Guo Jinxian <jinxianx.guo at intel.com> ---
Test failed while running igt/testdisplay

root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./testdisplay
CRTC(7):[0]  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm
<4>[ 1322.518121] WARNING: CPU: 0 PID: 4605 at
drivers/gpu/drm/i915/intel_dp.c:1235 intel_enable_dp+0x41/0x79 [i915]()
<4>[ 1322.518144] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_conexant snd_hda_codec_generic iTCO_wdt iTCO_vendor_support
snd_hda_intel snd_hda_controller pcspkr r8169 i2c_i801 lpc_ich mfd_core
snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery iosf_mbi wmi ac
acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core
v4l2_common videodev i915 button video drm_kms_helper drm
<4>[ 1322.518149] CPU: 0 PID: 4605 Comm: testdisplay Tainted: G        W    
3.16.0-rc6_drm-intel-nightly_af1aab_20140724+ #764
<4>[ 1322.518357]  [<ffffffffa000bf1d>] ?
drm_mode_set_config_internal+0x4b/0xb3 [drm]
<4>[ 1322.518363]  [<ffffffffa0050a5a>] ? restore_fbdev_mode+0x8f/0xa8
[drm_kms_helper]
<4>[ 1322.518369]  [<ffffffffa0050a90>] ?
drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper]
<4>[ 1322.518375]  [<ffffffffa0051db7>] ? drm_fb_helper_set_par+0x3a/0x58
[drm_kms_helper]
<4>[ 1322.518457]  [<ffffffffa0002fb5>] ? drm_ioctl+0x2bf/0x3c0 [drm]
<4>[ 1322.873691] WARNING: CPU: 1 PID: 4605 at
drivers/gpu/drm/i915/intel_dp.c:1293 edp_panel_vdd_off+0x33/0x7a [i915]()
<4>[ 1322.873714] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_conexant snd_hda_codec_generic iTCO_wdt iTCO_vendor_support
snd_hda_intel snd_hda_controller pcspkr r8169 i2c_i801 lpc_ich mfd_core
snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery iosf_mbi wmi ac
acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core
v4l2_common videodev i915 button video drm_kms_helper drm
<4>[ 1322.873719] CPU: 1 PID: 4605 Comm: testdisplay Tainted: G        W    
3.16.0-rc6_drm-intel-nightly_af1aab_20140724+ #764
<4>[ 1322.873949]  [<ffffffffa000bf1d>] ?
drm_mode_set_config_internal+0x4b/0xb3 [drm]
<4>[ 1322.873956]  [<ffffffffa0050a5a>] ? restore_fbdev_mode+0x8f/0xa8
[drm_kms_helper]
<4>[ 1322.873962]  [<ffffffffa0050a90>] ?
drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper]
<4>[ 1322.873968]  [<ffffffffa0051db7>] ? drm_fb_helper_set_par+0x3a/0x58
[drm_kms_helper]
<4>[ 1322.874049]  [<ffffffffa0002fb5>] ? drm_ioctl+0x2bf/0x3c0 [drm]

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