[Bug 111315] [CI][DRMTIP]igt at i915_pm_rpm@i2c - dmesg-warn - Missing case (dig_port->aux_ch == 1)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Aug 9 14:11:09 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111315
Imre Deak <imre.deak at intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #3 from Imre Deak <imre.deak at intel.com> ---
The problem is
<7>[ 10.069905] [drm:intel_bios_port_aux_ch [i915]] using AUX B for port C
(VBT)
which is impossible. Port C is a TypeC port and can only be connected to an AUX
starting from AUX C (and the AUX depending on the corresponding DP-Alt/TBT
power well).
In addition either the rework for legacy-DP functionality is missing from the
RVP or the BIOS setup is not configured accordingly.
So this is again a VBT issue wrt. the port C information in it. Please assign
to someone who could generate a new VBT, removing the port C info from there
completely, or fixing the AUX info in it (if the fi-icl-dsi has indeed the
required DP rework).
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