[Bug 101111] [Regression BDW] backlight flickering/display artifacting on Broadwell integrated graphics with 4.12-rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101111

--- Comment #24 from Mark Spencer <n7u4722r35 at ynzlx.anonbox.net> ---
Created attachment 133447
  --> https://bugs.freedesktop.org/attachment.cgi?id=133447&action=edit
i915vbt

A attached what you asked for. Kernel 4.12.5 is latest I can currently get.

Actual flickering happened at the very end of dmesg without patch log.

excerpt from dmesg without patch:

[drm:intel_opregion_get_panel_type [i915]] Ignoring OpRegion panel type (0)
[drm:intel_bios_init [i915]] Panel type: 14 (VBT)

excerpt from dmesg with patch:

[drm] Using panel type from OpRegion on HP Spectre x360 Convertible
[drm:intel_bios_init [i915]] Panel type: 0 (OpRegion)

I hope it helps you.

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