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From: Daniel Vetter <daniel@ffwll.ch>
To: shuang.he@intel.com
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Add debugfs to read any DPCD register
Date: Fri, 10 Apr 2015 09:39:18 +0200	[thread overview]
Message-ID: <20150410073918.GY12038@phenom.ffwll.local> (raw)
In-Reply-To: <f90827$k6hu56@orsmga001.jf.intel.com>

On Thu, Apr 09, 2015 at 02:54:13PM -0700, shuang.he@intel.com wrote:
> Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
> Task id: 6145
> -------------------------------------Summary-------------------------------------
> Platform          Delta          drm-intel-nightly          Series Applied
> PNV                                  276/276              276/276
> ILK                                  302/302              302/302
> SNB                 -21              313/313              292/313
> IVB                                  337/337              337/337
> BYT                                  286/286              286/286
> HSW                                  395/395              395/395
> BDW                                  321/321              321/321
> -------------------------------------Detailed-------------------------------------
> Platform  Test                                drm-intel-nightly          Series Applied
>  SNB  igt@kms_mmio_vs_cs_flip@setplane_vs_cs_flip      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@kms_rotation_crc@primary-rotation      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@cursor      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@cursor-dpms      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@debugfs-forcewake-user      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@dpms-mode-unset-non-lpsp      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@dpms-non-lpsp      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@drm-resources-equal      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@fences      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@fences-dpms      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@gem-execbuf      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@gem-idle      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@gem-mmap-cpu      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@gem-mmap-gtt      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@gem-pread      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@i2c      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@modeset-non-lpsp      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@modeset-non-lpsp-stress-no-wait      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@pci-d3-state      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@reg-read-ioctl      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
>  SNB  igt@pm_rpm@rte      DMESG_WARN(4)PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_retries,give_up@too many voltage .* give up
> drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborting@failed to train .* aborting
> Note: You need to pay more attention to line start with '*'

Something seems wrong with your test infrastructure, I've seen a bunch of
result (from completely unrelated patches) that DP link training is
failing all over the place on snb (and sometimes ilk).

Has someone tripped over the cable?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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  reply	other threads:[~2015-04-10  7:37 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-08  6:40 [PATCH] drm/i915: Add debugfs to read any DPCD register Durgadoss R
2015-04-08  8:04 ` Jani Nikula
2015-04-08  8:40   ` R, Durgadoss
2015-04-08  8:50     ` Jani Nikula
2015-04-09 21:54 ` shuang.he
2015-04-10  7:39   ` Daniel Vetter [this message]
2015-04-10  8:06     ` He, Shuang
2015-04-10  9:11       ` Daniel Vetter

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