Bug 108383 - [CI][DRMTIP] igt@kms_setmode@invalid-clone-exclusive-crtc - warn - no modes for connector 83
Summary: [CI][DRMTIP] igt@kms_setmode@invalid-clone-exclusive-crtc - warn - no modes f...
Status: RESOLVED WORKSFORME
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks:
 
Reported: 2018-10-16 08:06 UTC by Martin Peres
Modified: 2019-07-31 08:14 UTC (History)
3 users (show)

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


Attachments

Description Martin Peres 2018-10-16 08:06:41 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_128/fi-icl-u2/igt@kms_setmode@invalid-clone-exclusive-crtc.html

Starting subtest: invalid-clone-exclusive-crtc
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
(kms_setmode:926) igt_kms-WARNING: no modes for connector 83
Subtest invalid-clone-exclusive-crtc: SUCCESS (0.001s)
Comment 2 Imre Deak 2018-11-30 18:32:49 UTC
Something fishy with framebuffer takeover from BIOS

<7>[   12.661656] [drm:drm_setup_crtcs] looking for preferred mode on connector 83 0
<7>[   12.661661] [drm:drm_setup_crtcs] found mode 3840x2160
<7>[   12.661666] [drm:drm_setup_crtcs] looking for cmdline mode on connector 101
<7>[   12.661671] [drm:drm_setup_crtcs] looking for preferred mode on connector 101 0
<7>[   12.661675] [drm:drm_setup_crtcs] found mode 1920x1080
<7>[   12.661681] [drm:drm_setup_crtcs] picking CRTCs for 8192x8192 config
<7>[   12.664943] [drm:drm_setup_crtcs] desired mode 3840x2160 set on crtc 45 (0,0)
<7>[   12.664965] [drm:drm_setup_crtcs] desired mode 1920x1080 set on crtc 63 (0,0)
<7>[   12.665080] [drm:intelfb_create [i915]] re-using BIOS fb
<7>[   12.665274] [drm:intelfb_create [i915]] allocated 1920x1080 fb: 0x00000000

instead of which we should throw away it and create a new one, followed by pruning the eDP mode during fbdev probing:

<7>[   12.691895] [drm:drm_mode_debug_printmodeline] Modeline 84:"3840x2160" 60 533250 3840 3888 3920 4000 2160 2163 2168 2222 0x48 0xa
<7>[   12.691901] [drm:drm_mode_prune_invalid] Not using 3840x2160 mode: VIRTUAL_X

which leads to no modes returned to the test. Looks like the test should do a full reprobe, but instead it gets the cached version of the previously pruned mode list.
Comment 3 Nischala Yelchuri 2019-03-22 22:55:28 UTC
I'm unable to reproduce this on latest drm-tip with Linux kernel 5.0. The failure was last seen 49 days ago and the test has been passing without any warnings since then.
Comment 4 Lakshmi 2019-03-25 07:40:25 UTC
Last seen this issue drmtip_204 (1 month, 3 weeks / 784 runs ago). The frequency of this bug occurrence is once in 23-933 runs or 1-2 months. 
We can wait for next 2 months and close this bug if this doesn't occur again.
Comment 5 Lakshmi 2019-07-31 08:14:10 UTC
The reproduction rate of this issue is once in10.8 drmtip runs. Last seen on
drmtip 204 and current run is 336.

Closing this issue as WORKSFORME.
Comment 6 CI Bug Log 2019-07-31 08:14:55 UTC
The CI Bug Log issue associated to this bug has been archived.

New failures matching the above filters will not be associated to this bug anymore.


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