Bug 103155 - igt@gem_exec_suspend@basic-s4-devices - dmesg-warn - *ERROR* dp aux hw did not signal timeout (has irq: 1)!
Summary: igt@gem_exec_suspend@basic-s4-devices - dmesg-warn - *ERROR* dp aux hw did no...
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: highest critical
Assignee: shashank.sharma@intel.com
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks:
 
Reported: 2017-10-09 06:30 UTC by Marta Löfstedt
Modified: 2017-10-27 05:48 UTC (History)
1 user (show)

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

Attachments

Description Marta Löfstedt 2017-10-09 06:30:30 UTC 
On:
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5919/
and
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5920/

for the fi-kbl-7500u:
dmesg-warn:

[  235.464721] Setting dangerous option reset - tainting kernel
[  236.596272] Suspending console(s) (use no_console_suspend to debug)
[  241.960794] usb usb1: root hub lost power or was reset
[  241.960801] usb usb2: root hub lost power or was reset
[  241.964237] usb usb3: root hub lost power or was reset
[  241.964241] usb usb4: root hub lost power or was reset
[  242.023771] [drm:intel_dp_aux_ch [i915]] *ERROR* dp aux hw did not signal timeout (has irq: 1)!
[  243.324061] Setting dangerous option reset - tainting kernel
Comment 1 shashank.sharma@intel.com 2017-10-12 10:58:13 UTC 
Not seeing any Link training issues after this series:
https://patchwork.freedesktop.org/series/31639/

Results:
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5967/shards.html

Note this warning has been visible, but this doesnt cause link training failure, Link training is still successful.
[drm:intel_dp_set_idle_link_train [i915]] *ERROR* Timed out waiting for DP idle patterns
Comment 2 shashank.sharma@intel.com 2017-10-12 14:49:29 UTC 
(In reply to shashank.sharma@intel.com from comment #1)
> Not seeing any Link training issues after this series:
> https://patchwork.freedesktop.org/series/31639/
> 
> Results:
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5967/shards.html
> 
> Note this warning has been visible, but this doesnt cause link training
> failure, Link training is still successful.
> [drm:intel_dp_set_idle_link_train [i915]] *ERROR* Timed out waiting for DP
> idle patterns

All tests in this series:
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5967/shards-all.html
Comment 3 Manasi 2017-10-12 20:30:41 UTC 
It looks like on the LSPCON port,it does succeed to link train but then never receives the DP idle patterns.
So this one still looks like LSPCON issue.
@Shashank, do you think we need some wait or retries here as well?

Manasi
Comment 4 shashank.sharma@intel.com 2017-10-13 02:59:38 UTC 
@Manasi,

Let's wait for merge of this patch series (https://patchwork.freedesktop.org/series/31639/)
coz, its results look pretty clean to me, fixing many of link training problems.

Lets investigate this again, if we see this error even after this patch series. 

- Shashank
Comment 5 Marta Löfstedt 2017-10-16 10:42:09 UTC 
We have not seen this after CI_DRM_3228, when LSPCON fixes was merged.
Comment 6 shashank.sharma@intel.com 2017-10-27 02:53:50 UTC 
Marta, can we close this issue now ?
Comment 7 Marta Löfstedt 2017-10-27 05:48:14 UTC 
OOPS, sorry I archived in cibuglog, but forgot to close the bug.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.