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* [igt-dev] [PATCH i-g-t v3 0/2] Handle spurious HPDs
@ 2023-03-09  8:37 Vinod Govindapillai
  2023-03-09  8:37 ` [igt-dev] [PATCH i-g-t v3 1/2] lib/igt_debugfs: set provision to ignore long HPDs Vinod Govindapillai
                   ` (5 more replies)
  0 siblings, 6 replies; 8+ messages in thread
From: Vinod Govindapillai @ 2023-03-09  8:37 UTC (permalink / raw)
  To: igt-dev

Some panels generate spurious HPDs during CI execution causing
random unexpected failures. There are two parts for handling
this issue - in driver and in IGT. This is for IGT.

IGT will set ignore long HPD debugfs entry to ignore long HPDs
in the driver. And then by force connect the active connectors,
we can avoid the detect hooks being executed from drm and hence
avoid random failures. The behavior is controlled using the
environment variable IGT_KMS_IGNORE_HPD. Set this var in CI
exections where panels that generate spurioud HPDs are used.

Vinod Govindapillai (2):
  lib/igt_debugfs: set provision to ignore long HPDs
  lib/igt_kms: handle spurious HPDs

 lib/igt_debugfs.c | 26 ++++++++++++++++++++++
 lib/igt_debugfs.h |  1 +
 lib/igt_kms.c     | 56 +++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 81 insertions(+), 2 deletions(-)

-- 
2.34.1

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2023-03-16 17:38 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-03-09  8:37 [igt-dev] [PATCH i-g-t v3 0/2] Handle spurious HPDs Vinod Govindapillai
2023-03-09  8:37 ` [igt-dev] [PATCH i-g-t v3 1/2] lib/igt_debugfs: set provision to ignore long HPDs Vinod Govindapillai
2023-03-09  8:37 ` [igt-dev] [PATCH i-g-t v3 2/2] lib/igt_kms: handle spurious HPDs Vinod Govindapillai
2023-03-09  9:36 ` [igt-dev] ✓ Fi.CI.BAT: success for Handle " Patchwork
2023-03-11  0:24 ` [igt-dev] ✗ Fi.CI.IGT: failure " Patchwork
2023-03-15 16:39 ` [igt-dev] ✓ Fi.CI.BAT: success for Handle spurious HPDs (rev2) Patchwork
2023-03-16  4:34 ` [igt-dev] ✓ Fi.CI.IGT: " Patchwork
2023-03-16 17:37   ` Imre Deak

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