The fi-bxt-dsi fail on igt@kms_flip@basic-flip-vs-wf_vblank
IGT-Version: 1.19-gc718ba80 (x86_64) (Linux: 4.13.0-CI-CI_DRM_3087+ x86_64)
Using monotonic timestamps
Beginning basic-flip-vs-wf_vblank on pipe A, connector DSI-1
1920x1200 60 1920 1960 2000 2040 1200 1204 1208 1212 0xa 0x8 148350
Expected frametime: 16667us; measured 16625.7us +- 6.118us accuracy 0.11%
vblank interval differs from modeline! expected 16666.5us, measured 16626us +- 6.118us, difference 40.8us (6.7 sigma)
Note this has test has also previously failed when we had the. "*ERROR* Video mode command 0x00000041 send failed." see BUG 102404. I.e. failed results precedes dmesg-warn.
im send the url once check it
Created attachment 134316 [details]
once check the details
(In reply to mahesh from comment #2)
> Created attachment 134316 [details]
> Desriptive programing
> once check the details
Could you explain what above is adding to the solution of this bug?
Considering how it's failed, I would say the accuracy of our emulated scanline timestamp might not be enough. If this only happened once I would say monitor it a bit longer only?
On rc14 (latest drm tip), https://patchwork.kernel.org/patch/9938311/ is merged. We no longer see this error: ERROR* Video mode command 0x00000041 send failed.
Could someone please check on tip again to see if this message is seen?
This message is not seen. So I assume got fixed when changes were merged for that error.
Note seen ob BAT since at least: CI_DRM_3132