[Bug 92685] [i915 Skylake] HDMI output does not work with some adapters

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92685

--- Comment #31 from Stefan Brüns <stefan.bruens at rwth-aachen.de> ---
Created attachment 136385
  --> https://bugs.freedesktop.org/attachment.cgi?id=136385&action=edit
Sigrok DDC trace, HW I2C vs bitbanging

The first transfer (reading 0xff after the first byte) uses the GM965 GMBUS,
the second one uses bitbanging

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