Comment # 7 on bug 109380 from Arek Hiler

https://gitlab.freedesktop.org/drm/igt-gpu-tools/commit/ce130a078c85ce3f2bdb02047cba5b72702a79c3

And from pre-merge CI:

#### Possible fixes ####

  * igt@kms_chamelium@common-hpd-after-suspend:
    - fi-kbl-7567u:       [WARN][15] ([fdo#109380]) -> [PASS][16]
   [15]:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6734/fi-kbl-7567u/igt@kms_chamelium@common-hpd-after-suspend.html
   [16]:
https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3363/fi-kbl-7567u/igt@kms_chamelium@common-hpd-after-suspend.html